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May 26, 2018

[1805.03035] Time travel in vacuum spacetimes

Posted by in categories: information science, time travel

The possibility of time travel through the geodesics of vacuum solutions in first order gravity is explored. We present explicit examples of such geometries, which contain degenerate as well as nondegenerate tetrad fields that are sewn together continuously over different regions of the spacetime.

These classical solutions to the field equations satisfy the energy conditions.

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May 26, 2018

PRESS RELEASE: Tactical Robotics’ Cormorant Achieves IDF Mission Demo Milestone

Posted by in categories: biotech/medical, robotics/AI

On May 7th, Tactical Robotics (a subsidiary of Urban Aeronautics Ltd), based in Yavne. Israel, successfully performed a first “mission representative” demonstration for its lead customer, the Israel Defence Forces. This milestone was announced for the first time today at the Israel Combat Rescue and Emergency Medicine conference where the company also presented Cormorant’s capability to be the first UAS system fielded for unmanned casualty evacuation missions.

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May 26, 2018

New Harvard Startup Wants to Reverse Aging in Dogs and then Humans

Posted by in categories: biotech/medical, life extension

Professor George Church of Harvard Medical School has co-founded a new startup company, Rejuvenate Bio, which has plans to reverse aging in dogs as a way to market anti-aging therapies for our furry friends before bringing them to us.

Dogs first, humans next

The company has already carried some initial tests on beagles and plans to reverse aging by using gene therapy to add new instructions to their DNA. If it works, the goal is ultimately to try the same approach in people, and George Church may be one the first human volunteers.

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May 26, 2018

A sensor could monitor gut health via engineered bacteria

Posted by in categories: bioengineering, biotech/medical, health

Esearchers have devised a new way to get a sneak peek into what’s going on deep in your digestive system, creating a swallowable sensor that, with the help of engineered bacteria and a tiny electrical circuit, can detect the presence of molecules that might be signs of disease and then beam the results to a smartphone app.

The device, which scientists validated in pigs, remains a prototype and needs to be refined before it could be used in people. But the researchers, who reported their work Thursday in the journal Science, combined innovations in synthetic biology and microelectronics to create a modular platform that could be adapted to identify a wide range of molecules.

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May 26, 2018

Three countries are leading the renewable energy revolution

Posted by in category: futurism

When it rains, it powers. Learn more about Chinese investment in renewables: https://wef.ch/2knPJ1f

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May 26, 2018

These Saturn Moons Look Like Ravioli

Posted by in category: space

Saturn has ravioli-shaped moons, but they’re not as delicious as real ravioli. (via Seeker Universe)

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May 26, 2018

#5 Transhumanism, Artificial Intelligence, and Universal Basic Income with Zoltan Istvan

Posted by in categories: economics, geopolitics, policy, robotics/AI, transhumanism

A new podcast I did that talks about #transhmanism:


Zoltan Istvan is a transhumanist, futurist, author, and journalist. He’s a former reporter for National Geographic, ran for president in 2016, and is running for governor of California in 2018 under the libertarian party. In this episode we got into what transhumanism is, what his policy platforms are, and tackled a lot of the questions people generally have around these topics. Enjoy!

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May 26, 2018

This 3D Printer Can Help Grow Organs With Scaffolding Made Out of Sugar

Posted by in categories: 3D printing, biotech/medical

Sugar, that amazingly sweet treat some of us just can’t get enough of, has long been the fascination of children (and those with a child-like sweet tooth).

Its ability to be melted down into a glass-like substance enables confectionery artists to create tasty displays worthy of museums, or being served as a 3D printed dessert.

In fact, the same properties which make sugar so wonderful for cooking and designing also make it great for science.

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May 26, 2018

Asteroid Mining (Phase 1) to Begin in 2020, Says This Space Pioneer @themotleyfool #stocks

Posted by in category: space travel

Planetary Resources plans to begin dispatching spaceships in just two years.

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May 26, 2018

What Countries use US Dollar and Why?

Posted by in categories: bitcoin, cryptocurrencies, economics, policy

Other than the United States, 5 U.S. territories and 12 sovereign nations use the US dollar as their legal currency. (Note that Micronesia covers six sovereign countries).

Additionally, I have traveled to island nations and some countries in Asia and Pacific that peg their currency to the US dollar. In these regions, citizens accept US dollars interchangeably with their own national currency, and their governments don’t seem to discourage or prosecute such transactions.

What gives value to paper?

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