Physics

Theoreticians finally prove that 'curly arrows' tell the truth about chemical reactions

Team used theoretical modelling, looking at wave functions in new ways to show why curly arrows work. This unprecedented method of extracting the movements of electrons during a chemical reaction is a breakthrough in connecting traditional depictions of chemical mechanism with state-of-the-art quantum chemical calculations.

Microphone for light: Tiny guitar string vibrates 1 billion times when plucked

Scientists have engineered a tiny guitar string that vibrates 1 billion times when plucked. They would like to use it as a microphone for light.

Researchers find combination for small data storage and tinier computers

It may sound like a futuristic device out of a spy novel, a computer the size of a pinhead, but according to new research from the University of New Hampshire, it might be a reality sooner than once thought. Researchers have discovered that using an easily made combination of materials might be the way to offer a more stable environment for smaller and safer data storage, ultimately leading to miniature computers.

Student develops gaming technology for scientific research

Scientists have developed a new method and software for using computer game technology for complex scientific and engineering simulations.

NASA to Discuss Deep Space Exploration Progress at Johnson Space Center

Media are invited to see how engineers and scientists are helping make NASA’s deep space human exploration plans a reality at the agency’s Johnson Space Center in Houston on Thursday, April 26.

New aspects of superconductivity and related phenomena

Discovered accidentally over a century ago, the phenomenon of superconductivity continues to inspire a technological revolution. In 1911, while studying the behavior of solid mercury supercooled to 4 K (-269 °C), Dutch physicist Heike Kamerlingh Onnes (1853-1926) observed for the first time that certain materials conducted electricity with neither resistance nor losses at temperatures in the vicinity of absolute zero. Scientist are further exploring the exotic behaviors displayed by organic compounds subjected to low temperatures.

New quantum method generates really random numbers

Researchers have developed a method for generating numbers guaranteed to be random, through the use of quantum mechanics. The experimental technique surpasses all previous methods for ensuring the unpredictability of its random numbers and may enhance security and trust in cryptographic systems.

NASA Television to Air Launch of Next Planet-Hunting Mission

On a mission to detect planets outside of our solar system, NASA’s Transiting Exoplanet Survey Satellite (TESS) is scheduled to launch no earlier than 6:32 p.m. EDT Monday, April 16. Prelaunch mission coverage will begin on NASA Television and the agency’s website Sunday, April 15, with three live briefings.

Sensing interactions between molecules

An experimental approach to visualize structures of organic molecules with exceptional resolution is reported by physicists and chemists.

The thermodynamics of computing

Information processing requires a lot of energy. Energy-saving computer systems could make computing more efficient, but the efficiency of these systems can't be increased indefinitely, as physicists show.

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