This Week I Learned - Week #51 2019
This Week I Learned -
* Network security groups are associated to subnets or network interfaces in the Resource Manager deployment model. Unless you have a specific reason to, Microsoft recommends that you associate a network security group to a subnet, or a network interface, but not both. Since rules in a network security group associated to a subnet can conflict with rules in a network security group associated to a network interface, you can have unexpected communication problems that require troubleshooting.
* Certain services also impose restrictions on the subnet they are deployed in, limiting the application of policies, routes or combining VMs and service resources within the same subnet. Check with each service on the specific restrictions as they may change over time. Examples of such services are Azure NetApp Files, Dedicated HSM, Azure Container Instances, App Service.
* Service endpoints allow service resources to be secured to the virtual network. The endpoints also extend the identity of your VNet to the Azure services over a direct connection. Endpoints allow you to secure your critical Azure service resources to only your virtual networks. Traffic from your VNet to the Azure service always remains on the Microsoft Azure backbone network.
* Bridgefy is an offline messaging app available on iOS and Android platforms, that lets you communicate with others when you don't have access to Internet, by simply turning on your Bluetooth antenna. The app primarily works on three modes with the help of Bluetooth in the mobile phone. The first mode is ‘one-to-one’ mode in which a smartphones can connect over a range of 330 feet (100 meters) The second mode is ‘one-to-one long distance’ mode in which this app messages are sent over longer distances than the prescribed 330 feet with the help of other Bridgefy users between the sender and receiver. The third mode is the ‘broadcast’ mode in which a chatroom is created and a user can send a message to multiple people who are using the app and are not in senders’ contact list. The Bridgefy app requires an internet connection to activate the app for the first time you open the app.
* In contrast to raster (bitmap) graphics editors such as Photoshop or Gimp, the open-source vector graphics editor Inkscape (which is similar to Adobe Illustrator, Corel Draw, Freehand, or Xara X) stores its graphics in a vector format. Vector graphics is a resolution-independent description of the actual shapes and objects that you see in the image.
* Open Doodles offers a set of illustrations by Pablo Stanley that are free to use
* Within America’s own representative democracy, citizens would surely rise up in outrage if the government attempted to mandate that every person above the age of 12 carry a tracking device that revealed their location 24 hours a day. Yet, in the decade since Apple’s App Store was created, Americans have, app by app, consented to just such a system run by private companies. Now, as the decade ends, tens of millions of Americans, including many children, find themselves carrying spies in their pockets during the day and leaving them beside their beds at night — even though the corporations that control their data are far less accountable than the government would be - NY Times
* Your smartphone is one of the world’s most advanced surveillance tools. Once your location is shared with the companies, there’s no way to delete that information or get it back. Your best bet is to avoid sharing your location in the first place - NY Times
* Advertisers are increasingly turning to an invisible method that pulls together information about your device to pinpoint your identity. If there’s one lesson to learn about digital privacy, it’s that we can never grow complacent - NY Times
* 'Devil's Breath' or Scopolamine is an odourless powdered drug that can make the victims to lose their memory, free will, and in high enough doses, can even kill the person. It is made from Borrachero trees in Colombia.
* The iris (the eye structure that surrounds the pupil) gets its pigment from melanin, which is the same pigment that produces skin and hair color. In the early stages of life, newborns haven’t yet begun to make melanin. This means as their bodies start producing more, the eye color may change. Similar to skin tone, the more melanin that’s present, the darker the eye color. Furthermore, eye color isn’t a simple genetic trait, but rather is determined by several genes that may come in different variations. It was previously thought that a single gene pair following dominant and recessive inheritance patterns was responsible for eye color. Based on that assumption, it wouldn’t be possible for parents with blue eyes to have a child with brown eyes. However, this does happen. Therefore, subsequent studies disproved this model showing that it was too simplistic, and that two or more genes are likely responsible for eye color, making it a polygenic trait. Given that eye color is a direct result of the amount of melanin in the iris, it makes sense that most of the genes involved are related to the production, transport, or storage of melanin. Two genes that play a major role in determining eye color are OCA2 and HERC2, which are both located on chromosome 15... To complicate this even more, over 16 other genes are involved in eye color, affecting factors such as hue and saturation (intensity of color). This highlights two key points when it comes to eye color: first, the mechanisms behind eye color aren’t very well understood. Second, looking at the parent’s eye color or following a simple genetic inheritance pattern can’t always predict the color of a newborn’s eyes - Go Ask Alice!
* Autism-spectrum disorder (ASD) is characterised by repetitive, stereotypical and often restricted behaviour such as head-nodding, and by the difficulties those with it have in reading the emotions of, and communicating with, other people. These symptoms are noticeable in children from the age of two onwards. Currently, in America, about one child in 59 is diagnosed with ASD. There is more evidence that autism is linked to gut bacteria - The Economist
* Kerala .. was a cosmopolitan melting pot for far-flung cultures. Hindus, Christians, Jews and Muslims lived side by side and traded with the Arabs and Chinese long before the Portuguese fumbled their way over (it was Kerala that Columbus was after in 1492 when he found himself in the Bahamas instead) and established the first European settlement in India at Cochin in 1500, kicking off successive waves of colonization by the Portuguese, Dutch and British - NY Times
* A graphic narrative of two Syrian refugee families in the New York Times, Welcome to the New World, won the 2018 Pulitzer Prize for Editorial Cartooning
* How belief systems about our own abilities and potential fuel our behavior and predict our success -
* Network security groups are associated to subnets or network interfaces in the Resource Manager deployment model. Unless you have a specific reason to, Microsoft recommends that you associate a network security group to a subnet, or a network interface, but not both. Since rules in a network security group associated to a subnet can conflict with rules in a network security group associated to a network interface, you can have unexpected communication problems that require troubleshooting.
* Certain services also impose restrictions on the subnet they are deployed in, limiting the application of policies, routes or combining VMs and service resources within the same subnet. Check with each service on the specific restrictions as they may change over time. Examples of such services are Azure NetApp Files, Dedicated HSM, Azure Container Instances, App Service.
* Service endpoints allow service resources to be secured to the virtual network. The endpoints also extend the identity of your VNet to the Azure services over a direct connection. Endpoints allow you to secure your critical Azure service resources to only your virtual networks. Traffic from your VNet to the Azure service always remains on the Microsoft Azure backbone network.
* Bridgefy is an offline messaging app available on iOS and Android platforms, that lets you communicate with others when you don't have access to Internet, by simply turning on your Bluetooth antenna. The app primarily works on three modes with the help of Bluetooth in the mobile phone. The first mode is ‘one-to-one’ mode in which a smartphones can connect over a range of 330 feet (100 meters) The second mode is ‘one-to-one long distance’ mode in which this app messages are sent over longer distances than the prescribed 330 feet with the help of other Bridgefy users between the sender and receiver. The third mode is the ‘broadcast’ mode in which a chatroom is created and a user can send a message to multiple people who are using the app and are not in senders’ contact list. The Bridgefy app requires an internet connection to activate the app for the first time you open the app.
* In contrast to raster (bitmap) graphics editors such as Photoshop or Gimp, the open-source vector graphics editor Inkscape (which is similar to Adobe Illustrator, Corel Draw, Freehand, or Xara X) stores its graphics in a vector format. Vector graphics is a resolution-independent description of the actual shapes and objects that you see in the image.
* Open Doodles offers a set of illustrations by Pablo Stanley that are free to use
* Within America’s own representative democracy, citizens would surely rise up in outrage if the government attempted to mandate that every person above the age of 12 carry a tracking device that revealed their location 24 hours a day. Yet, in the decade since Apple’s App Store was created, Americans have, app by app, consented to just such a system run by private companies. Now, as the decade ends, tens of millions of Americans, including many children, find themselves carrying spies in their pockets during the day and leaving them beside their beds at night — even though the corporations that control their data are far less accountable than the government would be - NY Times
* Your smartphone is one of the world’s most advanced surveillance tools. Once your location is shared with the companies, there’s no way to delete that information or get it back. Your best bet is to avoid sharing your location in the first place - NY Times
* Advertisers are increasingly turning to an invisible method that pulls together information about your device to pinpoint your identity. If there’s one lesson to learn about digital privacy, it’s that we can never grow complacent - NY Times
* 'Devil's Breath' or Scopolamine is an odourless powdered drug that can make the victims to lose their memory, free will, and in high enough doses, can even kill the person. It is made from Borrachero trees in Colombia.
* The iris (the eye structure that surrounds the pupil) gets its pigment from melanin, which is the same pigment that produces skin and hair color. In the early stages of life, newborns haven’t yet begun to make melanin. This means as their bodies start producing more, the eye color may change. Similar to skin tone, the more melanin that’s present, the darker the eye color. Furthermore, eye color isn’t a simple genetic trait, but rather is determined by several genes that may come in different variations. It was previously thought that a single gene pair following dominant and recessive inheritance patterns was responsible for eye color. Based on that assumption, it wouldn’t be possible for parents with blue eyes to have a child with brown eyes. However, this does happen. Therefore, subsequent studies disproved this model showing that it was too simplistic, and that two or more genes are likely responsible for eye color, making it a polygenic trait. Given that eye color is a direct result of the amount of melanin in the iris, it makes sense that most of the genes involved are related to the production, transport, or storage of melanin. Two genes that play a major role in determining eye color are OCA2 and HERC2, which are both located on chromosome 15... To complicate this even more, over 16 other genes are involved in eye color, affecting factors such as hue and saturation (intensity of color). This highlights two key points when it comes to eye color: first, the mechanisms behind eye color aren’t very well understood. Second, looking at the parent’s eye color or following a simple genetic inheritance pattern can’t always predict the color of a newborn’s eyes - Go Ask Alice!
* Autism-spectrum disorder (ASD) is characterised by repetitive, stereotypical and often restricted behaviour such as head-nodding, and by the difficulties those with it have in reading the emotions of, and communicating with, other people. These symptoms are noticeable in children from the age of two onwards. Currently, in America, about one child in 59 is diagnosed with ASD. There is more evidence that autism is linked to gut bacteria - The Economist
* Kerala .. was a cosmopolitan melting pot for far-flung cultures. Hindus, Christians, Jews and Muslims lived side by side and traded with the Arabs and Chinese long before the Portuguese fumbled their way over (it was Kerala that Columbus was after in 1492 when he found himself in the Bahamas instead) and established the first European settlement in India at Cochin in 1500, kicking off successive waves of colonization by the Portuguese, Dutch and British - NY Times
* A graphic narrative of two Syrian refugee families in the New York Times, Welcome to the New World, won the 2018 Pulitzer Prize for Editorial Cartooning
* How belief systems about our own abilities and potential fuel our behavior and predict our success -
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