This Week I Learned - Week #45 2019
This Week I Learned -
* ~50% of IaaS VMs in Azure run Linux
* When you create a storage account, you select the primary region for the account. The paired secondary region is determined based on the primary region, and can't be changed.
* Azure Cosmos DB allows configuring multiple Azure regions as writable endpoints for a Database Account. In this configuration, Cosmos DB offers 99.999% SLA for both read and write availability.
* Throttling is most frequently used in applications exposing API endpoints.
* Azure Functions, Azure Container Instances (ACI), and Logic Apps are examples of serverless computing available on Azure. With ACI, you're charged only for the execution time per second.
* Containers take the virtualization up a level. The virtualization is done at the OS level, making it possible to run multiple identical application instances within the same OS.
* Azure Kubernetes Service allows you to set up virtual machines to act as your nodes. Azure hosts the Kubernetes management plane and only bills for the running worker nodes that host your containers.
* In order to run Windows containers, your Kubernetes cluster must include multiple operating systems, with control plane nodes running Linux and workers running either Windows or Linux depending on your workload needs. Windows Server 2019 is the only Windows operating system supported.
* Microservices mitigate deployment hell by treating each component of a software system as its own product, with versions, testing, and releases. A microservice is “micro” because of the narrow scope of its functionality, not necessarily because the length of its code is very short - Okta Blog
* SVG, which stands for Scalable Vector Graphics, is a markup language for drawing shapes. SVGs are vector graphics, which means they are defined by mathematical equations. This, in turn, means that SVGs scale really well—the browser simply recalculates how the shape should look, rather than stretching an image with a set dimension. SVGs are often used as an alternative to Canvas graphics (which we’ll discuss next) for small animations, and as a basis for graphics and visualization libraries like D3.js. Because SVG elements are part of the DOM, they could be targeted by JavaScript and styled directly with CSS—unlike Canvas, which renders stateless pixels and needs additional code to handle user events (more on that in the next section). However, since traversing and manipulating the DOM tree is slower than pure JavaScript operations, SVG performance slows down as the number of elements grows - StackOverflow Blog
* ...books, movies and TV series featuring people with exceptional brain performance, including underlying autism, have become popular depictions. The Good Doctor is based on the 2013 South Korean series by the same name. And there are others as well including The Accountant; Temple Grandin; Life Animated; Gifted; and Mercury Rising to name only a few....there are a small number with advanced degrees in music, art and mathematics from prestigious universities or conservatories, practicing their craft with distinction. Temple Grandin, for example, is a renowned animal science doctor who lectures and designs animal-handling facilities worldwide - Scientific American Blog
* Thailand is the largest rubber producing country. 90-95% of the rubber plantations are in Asia. China is the largest importer of natural rubber in the world.
* A rubber tree produces 1-1.5 kgs of natural rubber per year. 1 tyre requires 2 trees.
* A Futures market is where a buyer and seller agree to certain terms of price, of volume, of grades, of specification, of origin, basically everything which you would find in a contract, for delivery at some point of time in the future. The world's first institutional futures exchange was established in Japan for trading rice futures in 1730. Futures traders speculate and can manipulate markets.
* Tagore is the only poet in the world to have written the national anthems of two countries - India & Bangladesh
* A map of India showing the dates when each State was formed -
* "In my youth, I would have argued that life is just a series of random events devoid of any meaning. But as a data scientist, I have to recognize that sometimes patters emerge. Undeniable patterns." - Gilfoyle, "Silicon Valley", S6E3
* ~50% of IaaS VMs in Azure run Linux
* When you create a storage account, you select the primary region for the account. The paired secondary region is determined based on the primary region, and can't be changed.
* Azure Cosmos DB allows configuring multiple Azure regions as writable endpoints for a Database Account. In this configuration, Cosmos DB offers 99.999% SLA for both read and write availability.
* Throttling is most frequently used in applications exposing API endpoints.
* Azure Functions, Azure Container Instances (ACI), and Logic Apps are examples of serverless computing available on Azure. With ACI, you're charged only for the execution time per second.
* Containers take the virtualization up a level. The virtualization is done at the OS level, making it possible to run multiple identical application instances within the same OS.
* Azure Kubernetes Service allows you to set up virtual machines to act as your nodes. Azure hosts the Kubernetes management plane and only bills for the running worker nodes that host your containers.
* In order to run Windows containers, your Kubernetes cluster must include multiple operating systems, with control plane nodes running Linux and workers running either Windows or Linux depending on your workload needs. Windows Server 2019 is the only Windows operating system supported.
* Microservices mitigate deployment hell by treating each component of a software system as its own product, with versions, testing, and releases. A microservice is “micro” because of the narrow scope of its functionality, not necessarily because the length of its code is very short - Okta Blog
* SVG, which stands for Scalable Vector Graphics, is a markup language for drawing shapes. SVGs are vector graphics, which means they are defined by mathematical equations. This, in turn, means that SVGs scale really well—the browser simply recalculates how the shape should look, rather than stretching an image with a set dimension. SVGs are often used as an alternative to Canvas graphics (which we’ll discuss next) for small animations, and as a basis for graphics and visualization libraries like D3.js. Because SVG elements are part of the DOM, they could be targeted by JavaScript and styled directly with CSS—unlike Canvas, which renders stateless pixels and needs additional code to handle user events (more on that in the next section). However, since traversing and manipulating the DOM tree is slower than pure JavaScript operations, SVG performance slows down as the number of elements grows - StackOverflow Blog
* ...books, movies and TV series featuring people with exceptional brain performance, including underlying autism, have become popular depictions. The Good Doctor is based on the 2013 South Korean series by the same name. And there are others as well including The Accountant; Temple Grandin; Life Animated; Gifted; and Mercury Rising to name only a few....there are a small number with advanced degrees in music, art and mathematics from prestigious universities or conservatories, practicing their craft with distinction. Temple Grandin, for example, is a renowned animal science doctor who lectures and designs animal-handling facilities worldwide - Scientific American Blog
* Thailand is the largest rubber producing country. 90-95% of the rubber plantations are in Asia. China is the largest importer of natural rubber in the world.
* A rubber tree produces 1-1.5 kgs of natural rubber per year. 1 tyre requires 2 trees.
* A Futures market is where a buyer and seller agree to certain terms of price, of volume, of grades, of specification, of origin, basically everything which you would find in a contract, for delivery at some point of time in the future. The world's first institutional futures exchange was established in Japan for trading rice futures in 1730. Futures traders speculate and can manipulate markets.
* Tagore is the only poet in the world to have written the national anthems of two countries - India & Bangladesh
* A map of India showing the dates when each State was formed -
* "In my youth, I would have argued that life is just a series of random events devoid of any meaning. But as a data scientist, I have to recognize that sometimes patters emerge. Undeniable patterns." - Gilfoyle, "Silicon Valley", S6E3
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