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Apr 29, 2018

Felix Klein and the Klein-Bottle

Posted by in categories: government, mathematics

On April 25, 1849, German mathematician and mathematics educator Felix Klein was born. Klein is known for his work in group theory, complex analysis, non-Euclidean geometry, and on the connections between geometry and group theory. His 1872 Erlangen Program, classifying geometries by their underlying symmetry groups, was a hugely influential synthesis of much of the mathematics of the day. Klein also devised the Klein-bottle, a one-sided surface which, if traveled upon, could be followed back to the point of origin while flipping the traveler upside down.

A mathematician named Klein Thought the Möbius band was divine. Said he: “If you glue The edges of two, You’ll get a weird bottle like mine.” ( Leo Moser )

Felix Klein’s father was an old Prussian Protestant from Ennepetal in southern Westphalia. He was district administrator of the government’s main fund in Düsseldorf, while Klein’s mother came from industrial circles in Aachen. In the autumn of 1865 Felix Klein began studying mathematics and natural sciences at the University of Bonn. Klein studied in Bonn with Rudolf Lipschitz and Julius Plücker, whose assistant he became. After Plucker’s death Alfred Clebsch took over the publication of his unfinished work and transferred this work to the talented Klein received his doctorate in 1868 from Plücker with a topic from geometry applied to mechanics. In 1869 he went to Berlin University and listened to a lecture by Leopold Kronecker on square forms.[5] He took part in the mathematical seminars of Ernst Eduard Kummer and Karl Weierstrass, where he also met Sophus Lie, with whom he went to Paris for a study visit in 1870 and was a friend.

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Apr 29, 2018

Reunion Island volcano erupts

Posted by in category: futurism

It’s said to be one of the most active volcanoes in the world.

Le Piton de la Fournaise on Reunion Island in the Indian Ocean started spewing lava on Friday and continued into the weekend.

And there was a spectacular light show for those who ventured out.

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Apr 29, 2018

European Space Agency releases 1st image from Mars orbiter

Posted by in category: space

BERLIN (AP) — The European Space Agency has released the first image taken by its Trace Gas Orbiter showing the ice-covered edge of a vast Martian crater.

Scientists combined three pictures of the Korolev Crater taken from an altitude of 400 kilometers (249 miles) on April 15.

Lead researcher Nicolas Thomas said Thursday the colors in the resulting image were also adjusted to best resemble those visible to the human eye.

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Apr 29, 2018

Jeff Bezos’ Blue Origin starts its year off right with beautiful rocket launch

Posted by in category: space travel

Blue Origin just launched its first rocket of 2018. The New Shepard system soared into the sky on Sunday.

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Apr 29, 2018

This Is The Most Detailed Map Of The Universe

Posted by in category: space

Want to see 1.7 billion stars in stunning detail? This 3D color map of our universe is the best ever. (via Seeker Universe)

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Apr 29, 2018

I Spent a Weekend With Cyborgs, and Now I Have an RFID Implant I Have No Idea What to Do With

Posted by in categories: biotech/medical, cyborgs

Jeffrey Tibbetts prepped for implantation and scrubbed in, methodically sudsing up to his elbows, scraping the dirt from under his fingernails and scouring his hands with a rough brush to render his body sterile before donning a pair of beige latex surgical gloves.

Behind him, a twentysomething tea barista in a black baseball cap waited pensively, his left ring finger exposed from under a surgical drape, a tourniquet wrapped tightly around it. For months, an implanted magnet had been uncomfortably bulging out of the side of Zac Shannon’s finger. Tibbetts picked up a scalpel and began cutting, gently scraping away at the flesh until the incision was deep enough to expose the magnet. With the very steady hands of a practiced surgeon, he pulled out the tiny hunk of metal.

Tibbetts plopped another magnet into the finger, sutured it shut, and removed the tourniquet. The small wound began to gush blood.

Continue reading “I Spent a Weekend With Cyborgs, and Now I Have an RFID Implant I Have No Idea What to Do With” »

Apr 29, 2018

Meet the 26-year-old ex-Googler who got $133 million for a cryptocurrency startup that could replace money completely

Posted by in categories: bitcoin, cryptocurrencies, economics

Nader Al-Naji started mining bitcoin in his Princeton dorm in 2013. Now, he’s working on a stable cryptocurrency that be believes could actually replace money.

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Apr 29, 2018

Poor countries can increase food production

Posted by in categories: food, government

Poor countries tend to have out one-tenth of the crop yield per hectare compared to the yield from rich countries. Farmers in rich countries are more productive than those in poor countries because they use better technology and infrastructure, and are subject to better government policies.

If all the world’s farmers extracted the maximum potential output from their fields, the gap in yields between rich and poor countries would vanish almost entirely.

So what would it take for the developing world to catch up?

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Apr 29, 2018

E. coli rewired to control growth as experts let them make proteins for medicine

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

Experts have equipped biotech workhorse bacteria with feedback control mechanism to balance growth with making protein products.

Medicines like insulin and interferon are manufactured using genetically engineered bacteria, such as E. coli. E. coli grow quickly and can be given DNA that instructs them to make proteins used in medicines and other materials.

However, the extra burden of producing new proteins hampers bacterial growth, which slows production. Solving this problem is an area of great interest for biotechnology and synthetic biology.

Continue reading “E. coli rewired to control growth as experts let them make proteins for medicine” »

Apr 29, 2018

Google co-founder Sergey Brin lays out the many ways the company uses AI today

Posted by in category: robotics/AI

Alphabet just published its annual Founders’ Letter and this year, cofounder Sergey Brin uses it to outline the ways the company’s using artificial intelligence, while highlighting both the benefits and risks of this “technology renaissance.”

Alphabet’s Sergey Brin uses this year’s Founders’ Letter to outline the ways the company users artificial intelligence every day.

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