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The testing tube is roughly twice as large as comparable facilities in the West, with a diameter of 80cm (2.6 ft).

The most giant free-piston-powered shock tunnel in the world is already operational in southwest China. It enables low-cost, excellent wind tunnel tests for hypersonic research.

The facility can simulate severe flight conditions at speeds ranging from 2.5 to 11.5 kilometers per second (1.55−7.14 miles per second), or more than 33 times the speed of sound, according to a report published by South China Morning Post (SCMP) on Thursday.

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160,000 square kilometers of the Ukrainian territory of land may be “contaminated” by landmines.

New technology to detect lethal explosives designed to maim and kill has been tested by researchers from the Demining Research Community.

The researchers have been in Oklahoma for two weeks setting up grids of mines and munitions to train a drone-based, machine-learning-powered detection system to find and identify harmful explosives without the need for people to do so, Scientific American magazine reported on Wednesday.

It’s not easy to find places where you can lay dormant mines and fly drones.

Continue reading “This new technology detecting deadly landmines with 92% accuracy could help Ukraine” | >

Article originally published on LINKtoLEADERS under the Portuguese title “Sem saber ler nem escrever!”

In the 80s, “with no knowledge, only intuition”, I discovered the world of computing. I believed computers could do everything, as if it were an electronic God. But when I asked the TIMEX Sinclair 1000 to draw the planet Saturn — I am fascinated by this planet, maybe because it has rings —, I only glimpse a strange message on the black and white TV:

Continue reading “No knowledge, only intuition!” | >

https://youtu.be/pDSEjaDCtOU?t=2526

Ian Hutchinson’s concerns for existential risk after minute 42.

Ian Hutchinson is a nuclear engineer and plasma physicist at MIT. He has made a number of important contributions in plasma physics including the magnetic confinement of plasmas seeking to enable fusion reactions, which is the energy source of the stars, to be used for practical energy production. Current nuclear reactors are based on fission as we discuss. Ian has also written on the philosophy of science and the relationship between science and religion.

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Continue reading “Ian Hutchinson: Nuclear Fusion, Plasma Physics, and Religion” | >

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The idea that some mimic might steal your identity and replace you, or takeover your mind, is terrifying. But could we encounter aliens that were able to do this?

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Continue reading “Alien Impostors & Doppelgangers” | >