Curating the Internet: Science and technology micro-summaries for September 15, 2019

A robotic "flying fish" along with IEEE Spectrum's weekly selection of awesome robot videos; An argument to integrate knowledge from genetic engineering and information security; A recursive zero knowledge proof that can verify a blockchain in 80 bytes; A new study linking teen depression and social media use; and A new scientific journal that aims to share ad revenue with authors

Fresh and Informative Content Daily: Welcome to my little corner of the blockchain

Straight from my RSS feed

Whatever gets my attention

Links and micro-summaries from my 1000+ daily headlines. I filter them so you don't have to.

pixabay license: source.

Water Jet Powered Drone Takes Off With Explosions - Here is a robotic flying fish that uses a water jet to launch itself out of the water and glide for up to 26 meters. The video says it has enough power to launch itself out of rough waters, and it could be used for collecting water samples in dangerous environments.

Also, make sure you check out the IEEE Spectrum's weekly selection of awesome robot videos, which includes a prosthetic device that amputees control using muscle and nerve impulses, three different takes on drone delivery for small and large scale cargos, two different gripping robots, two different takes on fully autonomous driving, an air-jet stepping robot, a couple different quadrupeds, and of course - more....

Here is the water jet video:
https://youtu.be/aJU8EL61NgA

When Biology Becomes Software - Information Security expert, Bruce Schneier talks about the increasing risk to biology as the field ventures into the arena of computation with scientists using DNA to alter living organisms. He notes that, "As synthetic biology looks more like computer technology, the risks of the latter become the risks of the former." With computers, he notes, the only risks from bugs during development are the cost of the failed trials. In biology, however, development bugs can create new forms of disease or else have other large-scale consequences. Also, there's no known way to "patch" biological systems once they're in the wild. To address these risks, and others, Schneier calls to avoid siloed thinking and expand integration between the biology and computer security fields of knowledge.

You Can Now Prove a Whole Blockchain With One Math Problem – Really - The Electric Coin Company says it has devised a form of recursive zero-knowledge proof that can verify an entire blockchain's validity in just 80 bytes. This is the first such method that does not require a trusted setup, which may have implications for blockchain scalability since it dramatically reduces the need for a node to replay the blockchain from the beginning when joining a network.

Teens are anxious and depressed after three hours a day on social media - A study in the journal JAMA Psychiatry reports results from surveying 6,600 teens from the ages 12 to 15. The researchers found that social media activity in excess of three hours per day correlated with higher rates of mental health problems, including internal problems like depression and anxiety, and external problems like aggression and antisocial behavior. Past studies have shown inconsistent results on this topic, the technologies evolve faster than they can be studied, and studies that are based on self-reports aren't always the most robust, so this is likely not the last word on the topic.

STEEM A new way to publish research findings. The Fair Journal pay scientists what is fair, and publish cartoon versions of the articles for kids - In this post, @thefairjournal introduces itself. The account is linked to thefairjournal.com, which aims to be a new scientific journal that pays authors a share of the advertising revenue. The site will host 3 versions of articles, a scientific version, a layman's version that's targeted towards adults, and an animated version that's targeted towards children. (A 10% beneficiary setting has been applied to this post for @thefairjournal)

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About this series

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