This Week I Learned - Week #3 2020
This Week I Learned -
* Application security groups enable you to configure network security as a natural extension of an application's structure, allowing you to group virtual machines and define network security policies based on those groups. You can reuse your security policy at scale without manual maintenance of explicit IP addresses.
* The icons we see on apps & websites are called by different names. The vertical stack burger icon signifying navigation drawers provide access to destinations and app functionality, such as switching accounts. The 3 dots ellipsis icon is called kebab menu by some and overflow menu by Google which uses it to represent App & placed on the right side of an app.
* Now, not every project needs a framework and not every page of a single-page-application needs to load a framework. In Netflix’s case, "removing React, several libraries and the corresponding app code from the client-side reduced the total amount of JavaScript by over 200KB, causing an over-50% reduction in Netflix’s Time-to-Interactivity for the logged-out homepage." The team then utilized the time spent by users on the landing page to prefetch React for subsequent pages that users were likely to land on - Front-End Performance Checklist 2020
* Humans can't see anything beyond red (infrared) or violet (ultraviolet) on the electromagnetic spectrum of light. While our naked eyes can't pick up on infrared light, the sensors in your phones and digital cameras can — essentially making the invisible visible. Bees can see ultraviolet light, snakes can see infrared light.
* Many Left Hand Traffic (LHT) countries were formerly part of the British Empire. In LHT vehicles keep left, and cars are RHD (right hand drive) with the steering wheel on the right-hand side. LHT Thailand has 3 RHT neighbours: Cambodia, Laos and Myanmar
* Every train station in Tokyo has its own catchy jingle.
* Japan eats two-thirds of the world's octopus catch.
* Animals like octopuses and squids have up to three hearts. Several species of octopus have blue, rather than red, fluid running through their veins. The blue comes from a copper-rich protein called hemocyanin. The giant Pacific octopus has three hearts, nine brains and blue blood. A central brain controls the nervous system. In addition, there is a small brain in each of their eight arms. Octopuses can change colors, squirt out poison, and exert a force greater than their own body weight.
* Spherocytosis is a genetic condition that causes red blood cells to be spherical instead of looking like flattened disks. It can lead to anemia, jaundice, splenomegaly (the enlargement of a person’s spleen). Spherocytosis is often remedied by a splenectomy, the surgical removal of an individual’s spleen. Unfortunately, those who've had their spleen removed also have a life-long risk of developing infections, as the spleen plays a key role in helping the body fight off bacterial infection - Go Ask Alice!
* One of the longest-running gag strips in Mad magazine, Spy vs. Spy was created by a Cuban expatriate, Antonio Prohías, who was once accused of being a spy himself. Unable to continue finding work after getting fired repeatedly for his satirical attacks on Castro, and fearing for the safety of his fellow El Mundo workers, Prohías, unable to speak a word of English, headed for New York. Based on the simple, but strong foundation of two spies who can never truly win, Prohías went on to create the wordless cartoons for decades, both as published in MAD, and in separate books where he could experiment with longer narratives. Prohías passed away in 1998. He was living comfortably in Florida, and still spoke next to no English.
* “What difference does it make to the dead, the orphans and the homeless, whether the mad destruction is wrought under the name of totalitarianism or in the holy name of liberty or democracy?” - Gandhi
* Application security groups enable you to configure network security as a natural extension of an application's structure, allowing you to group virtual machines and define network security policies based on those groups. You can reuse your security policy at scale without manual maintenance of explicit IP addresses.
* The icons we see on apps & websites are called by different names. The vertical stack burger icon signifying navigation drawers provide access to destinations and app functionality, such as switching accounts. The 3 dots ellipsis icon is called kebab menu by some and overflow menu by Google which uses it to represent App & placed on the right side of an app.
* Humans can't see anything beyond red (infrared) or violet (ultraviolet) on the electromagnetic spectrum of light. While our naked eyes can't pick up on infrared light, the sensors in your phones and digital cameras can — essentially making the invisible visible. Bees can see ultraviolet light, snakes can see infrared light.
* Many Left Hand Traffic (LHT) countries were formerly part of the British Empire. In LHT vehicles keep left, and cars are RHD (right hand drive) with the steering wheel on the right-hand side. LHT Thailand has 3 RHT neighbours: Cambodia, Laos and Myanmar
* Every train station in Tokyo has its own catchy jingle.
* Japan eats two-thirds of the world's octopus catch.
* Animals like octopuses and squids have up to three hearts. Several species of octopus have blue, rather than red, fluid running through their veins. The blue comes from a copper-rich protein called hemocyanin. The giant Pacific octopus has three hearts, nine brains and blue blood. A central brain controls the nervous system. In addition, there is a small brain in each of their eight arms. Octopuses can change colors, squirt out poison, and exert a force greater than their own body weight.
* Spherocytosis is a genetic condition that causes red blood cells to be spherical instead of looking like flattened disks. It can lead to anemia, jaundice, splenomegaly (the enlargement of a person’s spleen). Spherocytosis is often remedied by a splenectomy, the surgical removal of an individual’s spleen. Unfortunately, those who've had their spleen removed also have a life-long risk of developing infections, as the spleen plays a key role in helping the body fight off bacterial infection - Go Ask Alice!
* One of the longest-running gag strips in Mad magazine, Spy vs. Spy was created by a Cuban expatriate, Antonio Prohías, who was once accused of being a spy himself. Unable to continue finding work after getting fired repeatedly for his satirical attacks on Castro, and fearing for the safety of his fellow El Mundo workers, Prohías, unable to speak a word of English, headed for New York. Based on the simple, but strong foundation of two spies who can never truly win, Prohías went on to create the wordless cartoons for decades, both as published in MAD, and in separate books where he could experiment with longer narratives. Prohías passed away in 1998. He was living comfortably in Florida, and still spoke next to no English.
* “What difference does it make to the dead, the orphans and the homeless, whether the mad destruction is wrought under the name of totalitarianism or in the holy name of liberty or democracy?” - Gandhi
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