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Archive for the ‘space’ category: Page 947

Jul 16, 2016

Gravity doesn’t care about quantum spin

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

Physics, as you may have read before, is based around two wildly successful theories. On the grand scale, galaxies, planets, and all the other big stuff dance to the tune of gravity. But, like your teenage daughter, all the little stuff stares in bewildered embarrassment at gravity’s dancing. Quantum mechanics is the only beat the little stuff is willing get down to. Unlike teenage rebellion, though, no one claims to understand what keeps relativity and quantum mechanics from getting along.

Because we refuse to believe that these two theories are separate, physicists are constantly trying to find a way to fit them together. Part-in-parcel with creating a unifying model is finding evidence of a connection between the gravity and quantum mechanics. For example, showing that the gravitational force experienced by a particle depended on the particle’s internal quantum state would be a great sign of a deeper connection between the two theories. The latest attempt to show this uses a new way to look for coupling between gravity and the quantum property called spin.

I’m free, free fallin’

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Jul 14, 2016

The code that took America to the moon was just published to GitHub, and it’s like a 1960s time capsule — By Keith Collins| Quartz

Posted by in categories: software, space

nasa2

“When programmers at the MIT Instrumentation Laboratory set out to develop the flight software for the Apollo 11 space program in the mid-1960s, the necessary technology did not exist. They had to invent it.”

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Jul 14, 2016

Sirens of Titan: Flying Aerobot Drone Could Soar Over Saturn Moon — By Elizabeth Howell | Space.com

Posted by in categories: drones, space

winged-vehicle-titan-conception

“As the long-running Cassini mission enters its last year at Saturn, NASA is moving forward with an early-stage technology study to send a drone to its moon Titan.”

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Jul 14, 2016

The Noise at the Bottom of the Universe

Posted by in categories: information science, particle physics, quantum physics, space

Is search of the sound of silence.


To a physicist, perfect quiet is the ultimate noise. Silence your cellphone, still your thoughts, and muffle every kind of vibration, and you would still be left with quantum noise. It represents an indeterminacy deep within nature, bursts of static and inexplicable motions that cannot be gotten rid of, or made sense of. It seems devoid of meaning.

Considering how pervasive this noise is, you might presume that physicists would have a good explanation for it. But it remains one of the great unsolved problems in science. Quantum theory is silent not just on where the noise comes from, but on how exactly it enters the world. The theory’s defining equation, the Schrödinger equation, is completely deterministic. There is no noise in it at all. To explain why we observe quantum particles to be noisy, we need some additional principle.

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Jul 13, 2016

Russian hypersonic bomber can launch nuclear attacks from space

Posted by in categories: military, space

Military bosses claim the engine for the craft has already been tested, and a prototype could take to the air in six years.

It would be able to travel anywhere in the world in two hours and drop a devastating nuclear warhead before returning to base, it is claimed.

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Jul 13, 2016

New concept would have an assembly robot build an extremely large telescope in space

Posted by in categories: robotics/AI, space

Enhancing astronomers’ ability to peer ever more deeply into the cosmos may hinge on developing larger space-based telescopes. A new concept in space telescope design makes use of a modular structure and an assembly robot to build an extremely large telescope in space, performing tasks in which astronaut fatigue would be a problem.

The robotically assembled modular space telescope (RAMST) design is described by Nicolas Lee and his colleagues at the California Institute of Technology and the Jet Propulsion Laboratory in an article published this week by SPIE, the international society for optics and photonics, in the Journal of Astronomical Telescopes, Instruments, and Systems (JATIS).

Ground-based telescopes are limited by atmospheric effects and by their fixed location on the Earth.

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Jul 13, 2016

17 Ways Technology Will Change Our Lives by 2050

Posted by in categories: mobile phones, space

Goodbye smartphones, hello space tourism. Here are 17 bold predictions about the future from a futurist with an 85% accuracy track record.

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Jul 13, 2016

Reaction Engines secures €10 million funding to enable development of SABRE demonstrator engine

Posted by in categories: energy, space, transportation

Reaction Engines Ltd. announces today the signing of a €10m Development Contract with the European Space Agency, finalizing the UK Government’s £60m commitment.

Reaction Engines Ltd., today announces the signing of a €10m European Space Agency (ESA) contract which will enable the development of a ground based demonstrator of SABRE, a new class of aerospace engine which is highly scalable with multiple potential applications in hypersonic travel and space access.

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Jul 12, 2016

How the UN’s Top Outer Space Boss Will Fight Space Debris — By Elizabeth Howell | Motherboard

Posted by in category: space

Unknown

“In his new role as the chair of the UN Committee on the Peaceful Uses of Outer Space, which oversees everything from threats posed by space weather to asteroids, Kendall’s already tackling the huge problem of space debris.”

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Jul 12, 2016

Little Pieces of Outer Space on the Frozen Continent — By Michael Lucibella | The Antarctic Sun

Posted by in category: space

ansmet-banner

“How scientists recover fragments of the ancient solar system at the bottom of the planet”

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