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Archive for the ‘space’ category: Page 705

Jun 19, 2019

Special nanotubes could improve solar power and imaging technology

Posted by in categories: computing, nanotechnology, physics, solar power, space, sustainability

Physicists have discovered a novel kind of nanotube that generates current in the presence of light. Devices such as optical sensors and infrared imaging chips are likely applications, which could be useful in fields such as automated transport and astronomy. In future, if the effect can be magnified and the technology scaled up, it could lead to high-efficiency solar power devices.

Jun 19, 2019

Navy Patents Sound Weapon

Posted by in categories: energy, military, space

Imagine a day when a submarine could blast a target to smithereens using nothing more than acoustic energy. That’s the idea behind a recently granted U.S. Navy patent for a cavitation weapon. The powerful weapon would use sonar to generate “acoustic remote cavitation,” i.e. a big pressure bubble, that would destroy everything from torpedoes to mines. As the patent describes:

*A method is disclosed of generating a predetermined field of cavitation around a remote target in an underwater environment. The method includes the steps of identifying a remote target location, generating at least two acoustic beams, each at a high power output, from an underwater acoustic source, and controlling the generated acoustic beams to intersect with each other at the remote target location and thereby create a destructive cavitation field at the intersection of the beams. The acoustic source and target can be located in unconfined underwater space and at a distance of at least 100 m apart. *

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Jun 19, 2019

NASA Wants Robots to Sniff Out Moon Pits for Astronaut Homes

Posted by in categories: habitats, robotics/AI, space

These robots will help pave the way for future moon dwellers.

Jun 18, 2019

The Cat From Outer Space (1978) — Trailer

Posted by in categories: entertainment, space

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Movie Trailer for “The Cat From Outer Space” (1978)

Continue reading “The Cat From Outer Space (1978) — Trailer” »

Jun 18, 2019

Breaks in the Perfect Symmetry of the Universe Could Be a Window Into Completely New Physics

Posted by in categories: physics, space

If this fundamental symmetry of the universe doesn’t hold, it could break open.

Jun 18, 2019

In Japan, This Engineer Is Designing a Miniature Rover to Make the Moon Habitable

Posted by in categories: economics, space

By finding water on the moon, startup Ispace envisions a bustling lunar economy by 2040.

Jun 17, 2019

Scientists Have Found Evidence a Strange Group of Quantum Particles Are Basically Immortal

Posted by in categories: life extension, particle physics, quantum physics, space

Nothing lasts forever. Humans, planets, stars, galaxies, maybe even the Universe itself, everything has an expiration date. But things in the quantum realm don’t always follow the rules. Now, scientists have found that quasiparticles in quantum systems could be effectively immortal.

That doesn’t mean they don’t decay, which is reassuring. But once these quasiparticles have decayed, they are able to reorganise themselves back into existence, possibly ad infinitum.

This seemingly flies right in the face of the second law of thermodynamics, which asserts that entropy in an isolated system can only move in an increasing direction: things can only break down, not build back up again.

Jun 17, 2019

More on our “First Base”: How do we help protect astronauts from radiation on the surface of the moon?

Posted by in category: space

Placing regolith over their heads has long been considered necessary but previous methods have not been practical. On the lunar surface, the simpler the construction the better.

Jun 17, 2019

Are China and US racing towards inevitable military confrontation in outer space?

Posted by in categories: military, space

Beijing is still behind in terms of its space-based military capabilities, but the gap is closing fast, experts say.

Jun 16, 2019

Martian Architecture Will Swap Glassy Skyscrapers for Caves So We Survive

Posted by in categories: futurism, space

The cities of the future may look more like the dwellings of the past.