Physics

Registration Opens for NASA Night Rover Energy Challenge

Registration is open for teams seeking to compete in the $1.5 million energy storage competition known as the Night Rover Challenge, sponsored by NASA and the Cleantech Open of Palo Alto, Calif.

Registration Opens for NASA Night Rover Energy Challenge

Registration is open for teams seeking to compete in the $1.5 million energy storage competition known as the Night Rover Challenge, sponsored by NASA and the Cleantech Open of Palo Alto, Calif.

Hubble Breaks Record in Search for Farthest Supernova

NASA's Hubble Space Telescope has found the farthest supernova so far of the type used to measure cosmic distances. Supernova UDS10Wil, nicknamed SN Wilson after American President Woodrow Wilson, exploded more than 10 billion years ago.

Quantum tricks drive magnetic switching into the fast lane

Researchers in the U.S. and Greece have found a new way to switch magnetism that is at least 1000 times faster than currently used in magnetic memory technologies. Magnetic switching is used to encode information in hard drives, RAM and other computing devices.

What is behind Einstein's turbulences? Calculations give initial insight into relativistic properties of this process

(Phys.org) —The American Nobel Prize Laureate for Physics Richard Feynman once described turbulence as "the most important unsolved problem of classical physics", because a description of the phenomenon from first principles does not exist. This is still regarded as one of the six most important problems in mathematics today.

The Explosive Truth About Cosmic Rays

What are those strange particles raining down on our planet from the depths of outer space?

Physicists have been wrestling with that question for a century now, but the past couple months have seen remarkable progress toward a meaningful answer. It's taken so long because researchers have had to overcome a lot of obstacles along the way. Even the name of the thing they are studying is confusing. The particles are formally known as cosmic rays even though they are not rays at all, but frag

Shape from sound: New methods to probe the universe

(Phys.org) —As the universe expands, it is continually subjected to energy shifts, or "quantum fluctuations," that send out little pulses of "sound" into the fabric of spacetime. In fact, the universe is thought to have sprung from just such an energy shift.

A giant step toward miniaturization: Nanotechnology transforms molecular beams into functional nano-devices with controlled atomic architectures

Semiconductor nanowires are quasi-one-dimensional nanomaterials that have sparked a surge of interest as one of the most powerful and versatile nanotechnological building blocks with actual or potential impact on nanoelectronics, photonics, electromechanics, environmentally friendly energy conversion, biosensing, and neuro-engineering technologies.

Scientists report hint of dark matter in first results from $2 billion cosmic ray detector (Update 2)

A $2 billion cosmic ray detector on the International Space Station has found the first significant hint of dark matter, the mysterious substance that is believed to hold the cosmos together but has never been directly observed, scientists say.

'Dancing' silicon atoms discovered in graphene

Jumping silicon atoms are the stars of a newly discovered atomic scale ballet. The "dancing" movement of the silicon atoms was caused by the energy transferred to the material from the electron beam of the team's microscope.

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