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A LITTLE JOURNEY INTO THE WORLD

An Adventure Amidst the Industrial Revolution

A Journey to the Center of the Earth by Jules Verne, is part of the HackerNoon Books Series. You can jump to any chapter in this book . WE CONTINUE OUR DESCENT here CHAPTER XV - WE CONTINUE OUR DESCENT At eight o'clock the next morning, a faint kind of dawn of day awoke us. The thousand and one prisms of the lava collected the light as it passed and brought it to us like a shower of sparks. We were able with ease to see objects around us. "Well, Harry, my boy," cried the delighted Professor, rubbing his hands together, "what say you now? Did you ever pass a more tranquil night in our house in the Konigstrasse? No deafening sounds of cart wheels, no cries of hawkers, no bad language from boatmen or watermen!" "Well, Uncle, we are quite at the bottom of this well—but to me there is something terrible in this calm." "Why," said the Professor hotly, "one would say you were already beginning to be afraid. How will you get on presently? Do you know, that as yet, we have not penetrated one inch into the bowels of the earth." "What can you mean, sir?" was my bewildered and astonished reply. "I mean to say that we have only just reached the soil of the island itself. This long vertical tube, which ends at the bottom of the crater of Sneffels, ceases here just about on a level with the sea." "Are you sure, sir?" "Quite sure. Consult the barometer." It was quite true that the mercury, after rising gradually in the instrument, as long as our descent was taking place, had stopped precisely at twenty-nine degrees. "You perceive," said the Professor, "we have as yet only to endure the pressure of air. I am curious to replace the barometer by the manometer." The barometer, in fact, was about to become useless—as soon as the weight of the air was greater than what was calculated as above the level of the ocean. "But," said I, "is it not very much to be feared that this ever-increasing pressure may not in the end turn out very painful and inconvenient?" "No," said he. "We shall descend very slowly, and our lungs will be gradually accustomed to breathe compressed air. It is well known that aeronauts have gone so high as to be nearly without air at all—why, then, should we not accustom ourselves to breathe when we have, say, a little too much of it? For myself, I am certain I shall prefer it. Let us not lose a moment. Where is the packet which preceded us in our descent?" I smilingly pointed it out to my uncle. Hans had not seen it, and believed it caught somewhere above us: "Huppe" as he phrased it. "Now," said my uncle, "let us breakfast, and break fast like people who have a long day's work before them." Biscuit and dried meat, washed down by some mouthfuls of water flavored with Schiedam, was the material of our luxurious meal. As soon as it was finished, my uncle took from his pocket a notebook destined to be filled by memoranda of our travels. He had already placed his instruments in order, and this is what he wrote: Monday, June 29th Chronometer, 8h. 17m. morning. Barometer, 29.6 inches. Thermometer, 6 degrees [43 degrees Fahr.] Direction, E.S.E. This last observation referred to the obscure gallery, and was indicated to us by the compass. "Now, Harry," cried the Professor, in an enthusiastic tone of voice, "we are truly about to take our first step into the Interior of the Earth; never before visited by man since the first creation of the world. You may consider, therefore, that at this precise moment our travels really commence." As my uncle made this remark, he took in one hand the Ruhmkorff coil apparatus, which hung round his neck, and with the other he put the electric current into communication with the worm of the lantern. And a bright light at once illumined that dark and gloomy tunnel! The effect was magical! Hans, who carried the second apparatus, had it also put into operation. This ingenious application of electricity to practical purposes enabled us to move along by the light of an artificial day, amid even the flow of the most inflammable and combustible gases. "Forward!" cried my uncle. Each took up his burden. Hans went first, my uncle followed, and I going third, we entered the somber gallery! Just as we were about to engulf ourselves in this dismal passage, I lifted up my head, and through the tubelike shaft saw that Iceland sky I was never to see again! Was it the last I should ever see of any sky? The stream of lava flowing from the bowels of the earth in 1219 had forced itself a passage through the tunnel. It lined the whole of the inside with its thick and brilliant coating. The electric light added very greatly to the brilliancy of the effect. The great difficulty of our journey now began. How were we to prevent ourselves from slipping down the steeply inclined plane? Happily some cracks, abrasures of the soil, and other irregularities, served the place of steps; and we descended slowly; allowing our heavy luggage to slip on before, at the end of a long cord. But that which served as steps under our feet became in other places stalactites. The lava, very porous in certain places, took the form of little round blisters. Crystals of opaque quartz, adorned with limpid drops of natural glass suspended to the roof like lusters, seemed to take fire as we passed beneath them. One would have fancied that the genii of romance were illuminating their underground palaces to receive the sons of men. "Magnificent, glorious!" I cried in a moment of involuntary enthusiasm, "What a spectacle, Uncle! Do you not admire these variegated shades of lava, which run through a whole series of colors, from reddish brown to pale yellow—by the most insensible degrees? And these crystals, they appear like luminous globes." "You are beginning to see the charms of travel, Master Harry," cried my uncle. "Wait a bit, until we advance farther. What we have as yet discovered is nothing—onwards, my boy, onwards!" It would have been a far more correct and appropriate expression, had he said, "let us slide," for we were going down an inclined plane with perfect ease. The compass indicated that we were moving in a southeasterly direction. The flow of lava had never turned to the right or the left. It had the inflexibility of a straight line. Nevertheless, to my surprise, we found no perceptible increase in heat. This proved the theories of Humphry Davy to be founded on truth, and more than once I found myself examining the thermometer in silent astonishment. Two hours after our departure it only marked fifty-four degrees Fahrenheit. I had every reason to believe from this that our descent was far more horizontal than vertical. As for discovering the exact depth to which we had attained, nothing could be easier. The Professor as he advanced measured the angles of deviation and inclination; but he kept the result of his observations to himself. About eight o'clock in the evening, my uncle gave the signal for halting. Hans seated himself on the ground. The lamps were hung to fissures in the lava rock. We were now in a large cavern where air was not wanting. On the contrary, it abounded. What could be the cause of this—to what atmospheric agitation could be ascribed this draught? But this was a question which I did not care to discuss just then. Fatigue and hunger made me incapable of reasoning. An unceasing march of seven hours had not been kept up without great exhaustion. I was really and truly worn out; and delighted enough I was to hear the word Halt. Hans laid out some provisions on a lump of lava, and we each supped with keen relish. One thing, however, caused us great uneasiness—our water reserve was already half exhausted. My uncle had full confidence in finding subterranean resources, but hitherto we had completely failed in so doing. I could not help calling my uncle's attention to the circumstance. "And you are surprised at this total absence of springs?" he said. "Doubtless—I am very uneasy on the point. We have certainly not enough water to last us five days." "Be quite easy on that matter," continued my uncle. "I answer for it we shall find plenty of water—in fact, far more than we shall want." "But when?" "When we once get through this crust of lava. How can you expect springs to force their way through these solid stone walls?" "But what is there to prove that this concrete mass of lava does not extend to the centre of the earth? I don't think we have as yet done much in a vertical way." "What puts that into your head, my boy?" asked my uncle mildly. "Well, it appears to me that if we had descended very far below the level of the sea—we should find it rather hotter than we have." "According to your system," said my uncle; "but what does the thermometer say?" "Scarcely fifteen degrees by Reaumur, which is only an increase of nine since our departure." "Well, and what conclusion does that bring you to?" inquired the Professor. "The deduction I draw from this is very simple. According to the most exact observations, the augmentation of the temperature of the interior of the earth is one degree for every hundred feet. But certain local causes may considerably modify this figure. Thus at Yakoust in Siberia, it has been remarked that the heat increases a degree every thirty-six feet. The difference evidently depends on the conductibility of certain rocks. In the neighborhood of an extinct volcano, it has been remarked that the elevation of temperature was only one degree in every five-and-twenty feet. Let us, then, go upon this calculation—which is the most favorable—and calculate." "Calculate away, my boy." "Nothing easier," said I, pulling out my notebook and pencil. "Nine times one hundred and twenty-five feet make a depth of eleven hundred and twenty-five feet." "Archimedes could not have spoken more geometrically." "Well?" "Well, according to my observations, we are at least ten thousand feet below the level of the sea." "Can it be possible?" "Either my calculation is correct, or there is no truth in figures." The calculations of the Professor were perfectly correct. We were already six thousand feet deeper down in the bowels of the earth than anyone had ever been before. The lowest known depth to which man had hitherto penetrated was in the mines of Kitzbuhel, in the Tirol, and those of Wurttemberg. The temperature, which should have been eighty-one, was in this place only fifteen. This was a matter for serious consideration. About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Jules Verne (2006). A Journey to the Center of the Earth. Urbana, Illinois: Project Gutenberg. Retrieved October 2022 https://www.gutenberg.org/files/18857/18857-h/18857-h.htm This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at , located at . www.gutenberg.org https://www.gutenberg.org/policy/license.html

WE CONTINUE OUR DESCENT

For most B2B marketers, it can be hard to keep up with the rapid pace of changes. Not staying up-to-date with key trends and best-practices can cost marketers and companies in lost market share, future opportunities and bottom-line profits. Today we’ll cover costly B2B marketing mistakes that many of the B2B companies I’ve been assessing so far in 2023 are making, and some B2B marketing best-practices you can apply right away. Now although these marketing mistakes are in the context of B2B SaaS and original equipment manufacturers (OEMs) that I’ve been reviewing, this will be valuable for any business owners and marketers looking to optimize their marketing, cut waste and greatly improve business profitability from marketing efforts in 2023. With that said, let’s jump right in. Marketing automations, lead nurturing, effective sales calls and retargeting visitors with ads is much more costly and prone to human error when it’s done manually instead of automatically with a page or a form specific segmentation strategy. 1) Companies using the same lead capture form for “contact us” and sales enquiries. Asking your lead what profession or general company title they hold at their business helps equip your sales team automatically with key pain points and aspirational goals so they can speak the language of your potential customer. Here's how we did it at LJ Welding Automation: 2) Not incorporating a self-identifying sales persona question on lead capture forms. Offer a free 15 minute consultation, a free trial, a discount offer, useful templates or something else that is a byproduct of the business that your customer may want. It should be a no-brainer and add value to the potential lead and help them along their buyers journey. 3) Not using any offers that entice visitors into becoming a lead. Landing pages are designed for the person to do 1 thing: become your lead. It's done by removing interactive element on the page except the 'submit' button. Normal web pages have menu and footer navigation that ruin conversion rates for getting leads. 4) Not using landing pages or thank you pages and relying on in-line messages instead. every Similarly with Thank you pages, after a visitor converts to a lead, you can immediately show them product demo videos and testimonials to keep the sales conversation going while your sales team prepares to make contact. Finally, Landing and thank you pages can help segment traffic for advertising based on if they became a lead yet or not. In-line thank you messages are a poor substitute for proper landing page structure and miss an unacceptable amount of strategic marketing value. On landing pages, you need to be pushy to get people to take action and . I’ve seen pop-up on exit intents capture lead info from hundreds of leads who would otherwise not have completed a form. 5) Not using pop-up on exit intent for landing pages. nudge them RELATED: Nudge Theory Best-Practices For Business 6) Online chat bot asking the wrong questions to visitors. This chatbot example is better off asking a question to learn more about the visitor’s pain point they’re trying to fix, or if they can find what they’re looking for, or see if they’re eligible for a special promo offer like a demo or discount. Chat bots are meant to help convert traffic into leads for your sales team or assist with customer service support. By using these microblogging sites, you're able to get your content ranking far higher in search results for organic traffic rather than relying on your website’s domain authority. 99% of companies will not outrank these three micro-blogging sites, so use them ASAP. 7) Not using HackerNoon , Substack or LinkedIn Articles to drive traffic from larger audience pools, as well as earn backlink authority. How-to: Publish your article first on your website, but then repost them on these other sites. Make sure to link back to the original on your website to drive new free eyeballs from those platforms and improve your website's authority. (canonical tagging) You can learn a lot about the effectiveness of sales collateral by seeing how much traffic it drives back to your website and becomes leads. You can't effectively improve what you don't measure. 8) Not using traceable and trackable links in their sales brochures and spec sheets. LinkedIn is a major B2B opportunity for new business where Twitter can be more superficial but provide social-proof opportunities on socials. 9) Putting equal effort on all social media platforms instead of focusing on the 1 or two that matter most (LinkedIn and Twitter). The best way to know your top two is by looking at your to see where traffic is coming from that converts into leads. referral Google analytics sources I’ve written about this plenty of times, but it’s so simple: all-lower-case-no-spaces-use-dashes-avoid-special-characters.jpeg 10) Not naming product image files in a way that's friendly to search engine indexers. Naming correctly matters not just for when a file goes on your own website, but also when you're trying to rank your product images quickly on Google search using free microblogging sites mentioned earlier and others, like and . Behance Dribbble If you’re in the business of improving reliability and efficiency for others, , this is about walking the talk for your own business. 11) Using patchwork softwares for CRM, web and marketing automations instead of a unified solution like HubSpot or comparable equivalents. working smarter and not harder A unifying all-in-one solution will help avoid unplanned downtime, hidden costs from popping up and making sales and marketing's job easier so they get more done. This can be as simple as an automated email a month after a sale to offer follow-up support, customized tips, suggest YouTube videos customers may now find useful or offer a customer satisfaction survey... whatever the priority is at the time for your business, incorporate that. 12) Not surveying customers post-sale to fine-tune the persona research or earn new product reviews, testimonials or case study material. Trade magazines and journals love publishing original guest posts and thought leadership content if it’s not overly promotional. They will only publish fresh content that hasn't been posted elsewhere first. Ask the Editor about their editorial calendar to find where you can add the most relevant value. You can find these publications easily at your trade shows as media sponsors, or type in your competitor's brand into Google and hit the “news tab” like below: 13) Not seeking out and creating guest posting opportunities when so much effort goes into content creation. It’s remarkable how much effort I’ve seen go into great quality content, only for it to be posted with no call-to-actions, no links sprinkled into other related-content on the B2B’s website just to sit there without either promotion or strategic purpose. For example, did you notice what I did under point #5? 14) Not interlinking content on the company blogs with more of their articles or a lead generation special offer. If you don’t do this, your competitor is stealing your traffic cheaply at the most valuable stage of the buyer’s journey. If you bid on it as well, it won't cost you much, but it dramatically increases your competitors' cost to compete for it due to your higher . 15) Not bidding on the company's own brand keywords for Google or Bing. Quality Score A lot of people don't know this, but Bing’s grown to account for . Windows PCs use Bing by default, and most companies provide workers with PCs over Macs, and that’s why you shouldn't neglect it for your B2B marketing. 16) Neglecting Bing and only using Google Ads. 8.85% of all online searches in 2023 You can create video content funnels that drive leads based on your buyers journey by using playlists of videos in an order and eventually running ads to get steady of new leads. You can also make ‘how-to’ style troubleshooting videos or common FAQs to take pressure off your customer support team. Create playlists based on products and short videos answering regular frequently asked questions. 17) Not using Youtube as an automated lead generation tool or customer self-serve troubleshooting solution. This is a massive waste of advertising budget because it always performs badly and doesn’t drive measurable results. Ads should drive traffic only to landing pages or other interactive element call-to-actions like “Call Now” unless it's very low cost-per-click and sending the right kind of traffic to content that is at the top of your funnel. 18) Running paid ads to a home page or other web page instead of to a specific landing page and offer. Be explicit about what you want the reader or viewer to do and don’t make them have to think. Showing your logo at the end of a video but not including a website address, a phone number, an interactive element to click on for more information or claim a special offer is a major, common missed opportunity that super-charges your marketing content. Make sure your call-to-actions are contextual to the content, and they will work for you 24/7. 19) Not including relevant call-to-actions to written content and video content. Content should be produced with the intention of helping your buyer personas through the awareness, consideration, decision and delight stages of their buyer's journey. Understand whose pain point you're fixing before you start creating content and use language that is familiar to them when describing your solution. 20) Creating the content before deciding who it’s meant for. Segmenting leads automatically from forms as mentioned in #2 helps to drip feed content that’s relevant to leads over a length of time that fits within your typical sales cycle. 21) Not incorporating marketing automation into the lead nurturing processes. The in B2B marketing is growing every day. Check out the recommended link for more inspiration. 22) Not learning and using ChatGPT or equivalents to write social media post drafts, find hashtags for a post, or drill down on their sales persona data for further insights. list of AI applications RECOMMENDED: How-to Use AI Marketing for Your B2B Marketing in 2023 A B2B SaaS wanted to increase SQLs by 8% a month. I looked at their sales process and saw a big problem: they were trying to drive leads toward a product demo sales call that could have been a 3 minute product sales video for that persona, but weren’t making the primary call-to-action try for free for X days which was an option found buried in the pricing page FAQs. In terms of micro-commitments, speaking with a sales person is a bigger ask than watching a product video demo and then trialing a software for free. Instead of sales people offering scripted product demo presentations, they would be most effective by doing customized onboarding for new SQLs who signed up to try the businesses SaaS for free. 23) Making the sales process unnecessarily more difficult. Structured data is what shows up at the top of a google search before website results. In order to rank your website needs a Moz domain authority above 30. You can find out your website's authority . Here’s a to write up all of mine. 24) Not using structured data mark-ups on key web pages like products, events, about page etc. here free resource I use Offers, recommendations, products, services, and posts made in your Google Business profile are favoured in search results over regular searches. That's because it's Google's digital properties and they promote their own stuff first. can cover more than 1/3 of the first page of local search results and is free to use (for now). 25) Not using the Google Business listing to its potential. Google's snack pack This comes back to knowing your audience before getting started. A business owner will have different motivations and pain points than a process engineer, a manager or an end-user. A good tip is whoever the customer is you're quoting for the case study, their business title is probably the sales persona audience to focus on. 26) Not writing case studies from the buyer persona perspective and being too general in the appeal. I’ve mentioned some in previous articles but good free ones I like are and . For SaaS companies especially, submitting published posts from  HackerNoon and LinkedIn Articles and guest posting sites can also be added to a company's profile as “News Mentions”. 27) Not backlinking articles after publishing, or having any plan to make backlinks happen. Instapaper Folkd Crunchbase The most cost-effective use of an ad budget is retargeting people you know are interested in your company already, versus prospecting for new business with people who are unfamiliar with you and your product. . If your ad budget is small, stick to retargeting only at first. 28) Not retargeting web traffic at all. Retargeting is the low-hanging fruit Web traffic that’s top of the funnel isn’t as valuable to the business as traffic that is in the decision stage of your sales cycle. 29) Not bucketing web traffic retargeting based on where the visitor is in the buyers journey. I’ve seen OEMs that don’t use their "90 day full money back" guarantees on sales pages and marketing collateral, and it really hurts their conversion rates. By including this information, the company reverses the risk away from the customer, so they have nothing to lose by trying the product. 30) Not promoting key selling information like free trials or money back guarantees. Sales videos are by far more effective than hero images but leaving the space blank isn’t helping convert more traffic into leads. 31) Not using hero images or sales videos on their landing pages. It’s ok to link off the website if it’s an important reference, but make sure it’s opening a new tab in the browser because your web traffic isn’t likely to return to your website once they've left. 32) Linking out to other websites without opening a new tab. Cost breakdowns of a marketing agency are typically as follows: ⅓ wage, ⅓ business overhead, ⅓ profit. The more time they spend over what they’ve allotted to you, the less profit a marketing agency makes. In essence, they are incentivized to do as little as possible without getting fired. That mark-up from marketing agencies is better spent on your business by paying and incentivizing high-quality marketing talent of your own, expanding advertising budgets and improving business long-term competitiveness and profitability. 33) Spending money with ad or marketing agencies instead of running  in-house. Now although lost opportunities from having these common but costly marketing mistakes is in the past, you now know what you can do to get ahead of your competition, just by making sure these costly and preventable marketing mistakes don't happen on your watch. If you know of a potential company, SaaS or OEM, tell them to . I’m open to all serious enquiries. Thanks for reading! PS: I’m looking to transition from consulting back to working for a B2B in need of a marketing director or VP. connect with me on LinkedIn

33 Common & Costly B2B Marketing Mistakes to Avoid

As the and , we do a lot of researches and proof of concepts. fintech software development services company These days most real-time services like online banking, e-commerce, or social media are dependent on cloud-computing platforms. However, making those services reliable and scalable is rather challenging. Moreover, the very nature of such solutions imposes restrictions on latency and availability, all while having a direct impact on the end-user experience. Common Bottlenecks in the Banking Software Development Process Initially, each service is intended to scale up to a particular limit, like handling ten thousand concurrent sessions. Hitting this milestone, software engineers need to re-engineer the solution to make it meet new requirements. Then history repeats itself and so on. What makes the matter worse is that financial businesses face this problem when their client base is expanding, and they succeed. Another bottleneck resulting from business growth is associated with the data explosion. Banks and other financial organizations are obliged to keep all the information about balances, accounts, and transactions consistent and secure to be compliant with rigid regulations. Otherwise, there's a risk of losing a license, which in turn leads to significant loss of money and goodwill. Trying to strike a balance between business requirements and technical capabilities, software engineers combine various tools, technologies, and approaches throughout the entire fintech app development process, including the division of large systems into smaller units, the use of message buses, actor model, gRPC, event sourcing, allocated storages with data projection, and others. But what if I say that there's a more handy way to address the issues mentioned above? — Even though banking is a heavily-regulated industry, it's rather dynamic. Smaller sectors become interconnected, and Open APIs promoted by the only add more fuel to the fire. Meanwhile, the list of requirements and constraints is continuously growing, Microsoft Orleans, with its virtual actors, may be put to good use. Open Banking initiative A Closer Look at MS Orleans and Why It's the Next Big Thing for the Financial Software Development Let's start with defining the actor model and why it's so much sought-after for banking app development and not only that. In simple terms, an actor-based framework is a concurrent environment where actors (primitives) can interact with each other instantly, giving single points of access for domain objects and capitalizing on a distributed lock. Though the actor model was first mentioned in 1973 and Erlang was introduced in 1986, the authors of the latter found out about actors long after. However, this programming language, in combination with dedicated libraries for distributed processing, is still considered the most-used actor-based solution since it runs granular entities that only communicate using messaging and share no state. The similarities come from challenges that both Erlang and the actor model are actually trying to solve. So far, the most popular actor-based framework was Akka, announced in the mid-2000s, but this Microsoft framework is quickly getting up to speed. In fact, Orleans is a cross-platform solution that combines familiar concepts (async/await, objects, interfaces, and others) and transfers them to multi-server environments, thus empowering software engineers to create scalable and robust distributed apps and cloud services. So why MS Orleans? — Let's delve into the features that make it a good pick for banking and finance app development. General points The primary difference of Orleans from Akka lies in the fact that Grains (meaning actors) in Orleans are virtual. Therefore, a fintech development team doesn't have to orchestrate a Grain's life-cycle manually, as the MS cross-platform app framework takes on this task. Besides that, obtaining a Grain reference by ID doesn't suggest that this specific Grain is actually created anywhere. Sounds great, right? Here is the scheme from the official documentation: Image source: Microsoft Orleans documentation In other words, a life-cycle of an Orleans Grain is given below: occurs on a fetching to any interface method of a Garin; Activation While staying , stateful Orleans Grains can change their state; active in memory takes place when a specific Grain isn't triggered for some time or if a Silo (Orleans uses this term to define a server) containing this Grain is terminated; Deactivation If a Grain has a state, it's . persisted Consequently, we can utilize Grains as if they are perpetually active, and MS Orleans takes on the rest. Distributed messaging. Clear business layer. Grain placement Distributed message-passing is one of the most significant features. Typically, it's as follows: We gain a Grain by ID and hence obtain a reference to the proxy interface. At this time, the exact Grain entity may not even be created anywhere; We trigger a Grain reference via an interface method; From a developer's point of view, it's a typical async method, but in essence, there is an HTTP query with a serialized message, affiliated to a Grain interface method; The proxy employs a previously activated Grain if there is any. Otherwise, an Orleans Grain is carried out on a Silo that sustains it; The initiated Grain elaborates the deserialized message and yields the HTTP response with the serialized sequel; The message is deserialized by the Grain client, and we obtain the result as if a standard in-memory entity did this. Considering the fact that you can address objects from anywhere within the allocation unit, it makes any object absolutely transparent within the system. At this point, the implementation of intermediate communication (like REST API) is not obligated, only if it's listed in the business requirements. Consequently, it helps us to accelerate the financial services app development process and reduce costs. The outcomes may be even more tangible if we take into account the need to implement a service layer for controllers, which finally becomes more streamlined. Natively, Grains are randomly stored on any Silo that permits the implementation. A software engineer can change this behavior with supplementary standards for each Grain separately, choosing between a load-based or local arrangement. Lastly, one can work out a custom strategy and pick a Silo based on a particular algorithm. Reentrancy. Distributed locking If we take a closer look at the Microsoft Orleans performance, then we should note that every method here isn’t reentrant out-of-the-box. Consequently, if some method is already handling a call, each succeeding call will wait until the prior one is terminated. Furthermore, MS Orleans allows manual configuration of the reentrancy using attributes; for example, query or read-only methods are re-enterable, while state-change patterns aren't. This lies at the core of keeping information consistent, which is so important for the banking product development process and helps to prevent various problems associated with multi-threaded account balance modification concerns, transaction replication, and more. Distributed ACID transactions The realization of distributed transactions is often seen as a cumbersome and tricky development issue. And considering this, the MS Orleans actor framework has something to offer. When it's well configured, your transactional entities don't have to execute rollbacks in case of failure, since this process is fully automatic. Besides that, engineering teams don't have to define transactions as ever. So how is it possible? Start with appending special attributes to methods to employ transactions and define their behavior, including a kind of cascading: . They either start a transaction individually or join the existent transaction if requested from a method that is already used in one; Create or merge . Always instantiate a new transaction, even though it's triggered within a diverse context; Create . Join the existing transaction only in those cases, if it's triggered from a method utilized in it, but don't generate new transactions themselves; Merge . A call isn't transactional, but it can be executed from a transaction, though the context will be bypassed; Suppress . A call isn't transactional, though it can be executed from a transaction and tap into the conforming context; Support . A call isn't transactional, and it can't be run from a transaction, so in this case, it hits an error. Not supported In the next place, to sustain and modify the state of all transactional Grains, it's essential to use specific transactional state entities, all while allowing us to omit this feature in production since it comprises some restrictions and uncovered use cases. Grain services. Stateless workers Despite the fact that Grains are mainly regarded as field objects, there're still Grains that aren't. Grains are referred by default value ID, for example, null or empty for , 0 for , and others. As the name implies, they don't hold state and are meant for cross-grain procedures, including but not limited to various management tasks and financial data aggregation (transactions among them). It's important to mention that teams can handle load balancing for Stateless Worker Grains locally, while the number of created activations is only limited by the CPU cores number on the machine. Stateless Worker string long Grains presuppose somewhat tricky configuration and mainly serve as a regular service that can be inserted into a DI container with no need for a Grain client or reference. It begins and stops with the Silo, meaning that it owns one instance and operates as long as the Silo does. The idea behind it is to execute any type of Grains orchestration, and a regular Orleans Reminder service may be a good example here. GrainService Reminder and Timer Both services handle repeatable procedures, but the goals of each vary. A is recorded per each Grain activation. It's rendered only while a specific Grain is running, thus it's meant for short timing (literally seconds); timer A actuates a Grain when there's a need to perform some action. It's designated for protracted periods (minutes and longer). reminder If we're talking about retail banking product development, then reminders are more tangible as they assist with scheduling ETL procedures, intermittent transactions (bond payments, recurring service payments, deposit interests, and more), daily post-processing, and many other activities that should be performed repeatedly. Final Thoughts Microsoft Orleans is a powerful tech tool that comes with a myriad of features to solve different types of problems, even the most complex ones. The list of 'manageable' issues includes the ones that most software engineers and our teams as well, encounter during the banking product development process, including but not limited to ensuring distributed locking and single point of access to domain entities. The programmatic model and features like the distributed messaging and co-hosting make this solution handy to work with. Though like any other technology, it has certain by developers carefully, the benefits still far outweigh, which makes it one of the best cross-platform app development frameworks for the financial services industry. constraints that should be covered

Microsoft Orleans Gives Rise to Future-Ready Digital Banking

Recently, I decided to spend a bit of time exploring LÖVE in my spare time. It uses Lua as programming language. Also, it’s an open-source engine available for free on Windows, Mac, and Linux. You can also build your game for iOS/Android and even WebGL. Website: https://love2d.org/ I thought it would be easy, coming from Unity and different other languages. But it took me a bit of time to find the information or logic behind the language and engine. So I decided to write this guide to help you get kick-started and easily transitioned to LÖVE. Guide Lua Language Here are some examples of different things you may want to use: Important Links Programming language reference: Programming in Lua https://www.lua.org/pil/contents.html Package manager for Lua: LuaRocks https://luarocks.org/ Variables local x = 1 -- Only available in local scope
globalVar = 2 -- Global variable Usual Operations -- increment variable
i = i + 1

-- decrement variable
i = i - 1

-- concatenate the variable name with two strings
message = "Hello, my name is "..name.."!"

-- not equal operator (others are the same as others languages)
test = something ~= 0

-- logical operatiors: not, and, or 
test1 = not something
test2 = something and somethingelse
test3 = something or somethingelse 

-- tertiary operator (a ? b : c)
test = a and b or c Note: there is no in Lua to increment. i++ If, elseif, else if playerJumped then 
 -- Start jump animation
elseif playerCrouch then 
 -- Start crouch animation
else
 -- Play idle animation
end For Loops -- Loop over i from 0 to 20 and increment by 1 at each cycle 
for i = 0,20,1
do
 -- Do something
end : you cannot have multiple variables in the for statement. If you need multiple variables look at doing a loop instead. Note while While Loops local i = 0
while i < 20
do 
 -- Do something 
 i = i + 1
end Functions function f(argument1) 
 return something * argument1
end : all the primary types (numbers, boolean, nil, strings) are passed by values, everything else is passed by reference to the function. Note Classes and OOP There is a native way of doing it, using the official language reference: https://www.lua.org/pil/16.1.html But I found it a bit inelegantly and the function is confusing. setmetadatatable So I found another solution that simplifies the code you need to write to create classes and child classes: https://gist.github.com/paulmoore/1429475 You only need to import the file in your project, but definitely look at the examples. classes.lua But here is a quick example. -- Load the classes helper file
local classes = require "classes"

local Enemy = classes.class() -- Create a class without any parent

Enemy.count = 0

function Enemy:init(name)
 self.hp = 100
 self.name = name
 Enemy.count = Enemy.count + 1
end

-- static function
function Enemy.count()
 return Enemy.count
end

local Orc = classes.class(Enemy) -- Create an Orc who is an enemy

function Orc:init(name, weapon)
 self.super:init(name) -- call to parent constructor
 self.weapon = weapon
end

-- Instantiate some orcs 
local orcWithAxe = Orc.new("Zotor", "Axe")
local orcWithBow = Orc.new("Plead", "Bow") Notes: We use to instantiate and define in the class, which is called implicitly during the operation. new init new For static methods and variables, use the class name followed by a then the name of the element you want to access. . For object methods and attributes, use the variable name followed by a then the name of the element you want to access. : For private methods, don’t prefix the name of the function with the name of the class. Queues and Stacks For that, I made a module based on the example provided by the official language reference. https://www.lua.org/pil/11.4.html List = {}
function List.new ()
 return {first = 0, last = -1}
end

function List.count(l)
 return #table
end

function List.pushleft (list, value)
 local first = list.first - 1
 list.first = first
 list[first] = value
 end

 function List.pushright (list, value)
 local last = list.last + 1
 list.last = last
 list[last] = value
 end

 function List.popleft (list)
 local first = list.first
 if first > list.last then error("list is empty") end
 local value = list[first]
 list[first] = nil -- to allow garbage collection
 list.first = first + 1
 return value
 end

 function List.popright (list)
 local last = list.last
 if list.first > last then error("list is empty") end
 local value = list[last]
 list[last] = nil -- to allow garbage collection
 list.last = last - 1
 return value
 end

return List Copy that in a file in your project. Then you can use it this way: list.lua queue = List.new()
stack = List.new()

-- Enqueue values
List.pushright(queue, someValue)
List.pushright(queue, someValue)
List.pushright(queue, someValue)

-- Stack values
List.pushleft(stack, someValue)
List.pushleft(stack, someValue)
List.pushleft(stack, someValue)

-- Consume queue (FIFO)
local value1 = List.popleft(queue)
local value2 = List.popleft(queue)

-- Consume stack (LIFO)
local value3 = List.popleft(stack)
local value4 = List.popleft(stack) Arrays and Tables (structured data) Table is a specific type in Lua, it’s a bit like arrays in PHP, which can be associative or indexed. -- same initialization
local array = {}
local table = {}

-- initializing array values
for i = 0,20,1
do 
 array[i] = i
end

-- initialization table values
table["x"] = 0
table["y"] = 0

-- or could be done at the declaration
local coords = {x=0, y=0} Cron If you want to schedule a specific action at a certain time, you want to use cron/timer. The easiest solution I found is to use the tool made by kikito: https://github.com/kikito/cron.lua local cron = require 'cron'

local function printMessage()
 print('Hello')
end

-- the following calls are equivalent:
local c1 = cron.after(5, printMessage)
local c2 = cron.after(5, print, 'Hello')

c1:update(2) -- will print nothing, the action is not done yet
c1:update(5) -- will print 'Hello' once

c1:reset() -- reset the counter to 0

-- prints 'hey' 5 times and then prints 'hello'
while not c1:update(1) do
 print('hey')
end

-- Create a periodical clock:
local c3 = cron.every(10, printMessage)

c3:update(5) -- nothing (total time: 5)
c3:update(4) -- nothing (total time: 9)
c3:update(12) -- prints 'Hello' twice (total time is now 21) LÖVE Engine Specifics OK, Lua itself requires some learning, as you’ve seen. But LÖVE too! Important Links Official documentation: LÖVE Wiki https://love2d.org/wiki/Main_Page Structure To run a game, you need a folder with at least a file . main.lua Example of minimal structure: function love.load()
 -- Run once at game initialization
end

function love.keypressed(key, scancode, isrepeat)
 -- Run each time a key on the keyboard is pressed
end

function love.mousepressed(x, y, button, istouch, presses)
 -- Run each time a mouse button is pressed, supports multi-touch too
end

function love.update(dt)
 -- Run at each frame before drawing it
 -- This is where you handle most of your game logic
end

function love.draw()
 -- Called at every frame to draw the game
end : There are other functions you may need, you can find the details here: Note https://love2d.org/wiki/love IDE I advise you to use Visual Code with the extension https://marketplace.visualstudio.com/items?itemName=SK83RJOSH.love-launcher Also, add a file at the root of your folder, with the contents: conf.lua function love.conf(t)
 t.console = true
end Now each time you press , your game will pop plus the console window which can help to debug. Alt+L Manipulate the Game Window You can change the default window display attribute during the loading of your game. Example: function love.load()
 love.window.setMode(800, 600, {resizable=true, minwidth=400, minheight=300})
end : Details https://love2d.org/wiki/love.window.setMode SVG Files I found a nice package that adds support for SVG files to LÖVE. It is called TÖVE. : Details https://github.com/poke1024/tove2d No active development since a couple of years ago, so be aware of that. But for me, it worked fine. Fixed Update If you want to make your game at a constant frame rate, it’s not possible natively. But I found that gist from Leandros: that just does the job perfectly. https://gist.github.com/Leandros/98624b9b9d9d26df18c4 You need to copy/paste the code at the end of your ua and that’s it. Constant 60FPS. main.l You can tweak the FPS if you need. ECS (Entity Component System) LÖVE is not natively using the paradigm . But if you like ECS as I do, I found a tiny ECS framework for it. It was written in 2016, pretty old already, but it’s so tiny that it did age well. ECS Here is the link: https://github.com/bakpakin/tiny-ecs If you want to use it, there’s only one file to copy to your project. tiny.lua You can find a project using it here as an example: https://github.com/bakpakin/CommandoKibbles Post Processing Screen VFX If you want to have some post-processing screen virtual effects, the easiest I found is to use moonshine: https://github.com/vrld/moonshine It contains 16 effects like glow, vignette, crt, ... That you can chain as you want and change parameters on the fly. If you want to create your own effect, you will have to start to write shaders and extend moonshine effects. Check the GitHub README to understand how to use it. Screen Shake Effect I found on the forum of LÖVE a reply from vrld that does the job: https://love2d.org/forums/viewtopic.php?p=193765#p193765 local t, shakeDuration, shakeMagnitude = 0, -1, 0
function startShake(duration, magnitude)
 t, shakeDuration, shakeMagnitude = 0, duration or 1, magnitude or 5
end

function love.update(dt)
 if t < shakeDuration then
 t = t + dt
 end
end

function love.draw()
 if t < shakeDuration then
 local dx = love.math.random(-shakeMagnitude, shakeMagnitude)
 local dy = love.math.random(-shakeMagnitude, shakeMagnitude)
 love.graphics.translate(dx, dy)
 end
end Game distribution If you want to distribute your game, your starting point is the wiki at that address: love2d.org/wiki/Game_Distribution More details on WegGL First, you need to install the tool from Davidobot: https://github.com/Davidobot/love.js npm install -g love.js Web server with proper headers Then you will need a server and a web server running on it. On my end, I use Nginx, and this is how I configured my : location location /beathoven/ {
 add_header Cross-Origin-Opener-Policy same-origin;
 add_header Cross-Origin-Embedder-Policy require-corp;
 alias /usr/share/nginx/html/beathoven/;
} Add missing mime type After several tries looking at errors in the browser, I realize also I needed to edit the file to add the definition for wasm file: /etc/nginx/mime.types application/vnd.google-earth.kmz kmz;
 application/wasm wasm;
 application/x-7z-compressed 7z; Use 7zip not tar on Windows To package your game into a love file, you need to simply zip the files. And since Windows 10, Windows includes a command line utility that you can use to make zip. But it looks like it’s not supported by the WebGL build. So I switched to 7Zip using the following parameters: tar You can also use 7zip in the command line. Example of building & deploy script #!/bin/bash

tools/7za a -tzip Beathoven.zip assets/ gameobjects/ pages/ responsive/ utils/ fonts.lua main.lua -mx0
mv Beathoven.zip Beathoven.love

love.js -t Beathoven -c Beathoven.love game 

ssh server rm -rf /usr/share/nginx/html/beathoven/*

scp -r game/* server:/usr/share/nginx/html/beathoven/ Conclusion Obviously, I haven’t covered everything here, but I hope that it can give a nice introduction to help you get quickly productive with LÖVE and create some cool games! Next week I’ll share about a Rhythm game called Beathoven I decided to make while exploring the possibilities of LÖVE. Originally published . here

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localwell.in

-- employees

Since n.d.

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