Physics

Look At This: A Rainbow, Magnetic Twister on the Sun

This vivid twist represents a solar cyclone, made of plasma, or ionized gas, moving along swirling magnetic fields on the Sun. It is a computer simulation of the storms on the Sun, created using data from a space telescope at NASA’s orbiting Solar Dynamics Observatory and the Swedish 1-meter Solar Telescope on Earth.

Look At This: A Rainbow, Magnetic Twister on the Sun

This vivid twist represents a solar cyclone, made of plasma, or ionized gas, moving along swirling magnetic fields on the Sun. It is a computer simulation of the storms on the Sun, created using data from a space telescope at NASA’s orbiting Solar Dynamics Observatory and the Swedish 1-meter Solar Telescope on Earth.

Persistent sync for neurons: Rats' neurons reveal steady neural network coordination

(Phys.org)—A team of Brazilian physicists working with neuroscientists studying freely behaving rats have found that their neurons often act in precise coordination over time, in a study about to be published in the European Physical Journal B. These findings stem from the work of Bruno Silva, a researcher at Bahia Federal University in Salvador, and his colleagues from other universities in the Northeastern region of Brazil, and suggest that neuronal networks' memory could be explored in the future.

Wanna see the space station overhead? NASA will send you mail!

Seeing the International Space Station pass overhead is pretty cool. It glides soundlessly across the sky, getting brighter as it gets closer to you, whizzing by hundreds of kilometers above your head at 8 kilometers per second.

I usually go to Heavens-Above when I think of it to check when the next few passes will be. But wouldn't it be nice if you get a text or email letting you know that a pass is about to happen?

Wanna see the space station overhead? NASA will send you mail!

Seeing the International Space Station pass overhead is pretty cool. It glides soundlessly across the sky, getting brighter as it gets closer to you, whizzing by hundreds of kilometers above your head at 8 kilometers per second.

I usually go to Heavens-Above when I think of it to check when the next few passes will be. But wouldn't it be nice if you get a text or email letting you know that a pass is about to happen?

X-ray source for imaging system developed to produce 'molecular movies'

One of the most urgently sought-after goals in modern science is the ability to observe the detailed dynamics of chemical reactions as they happen – that is, on the spatial scale of molecules, atoms, and electrons, and on the time scale of picoseconds or even shorter.

Thermal processes involved in heat-assisted magnetic recording paves the way for commercial devices

Most electronic data is stored on magnetic hard drives that spin at many thousands of revolutions per minute. To keep pace with ever-growing storage demand, however, achieving greater storage capacities by simply increasing the size of disks is infeasible. The required spinning speed would put immense physical strain on the components, particularly on the writing 'head'—a small needle-like object used to write data at particular points on the disk.

Physicists propose a way to make atomic clocks more accurate

(Phys.org)—Physicists Andrei Derevianko of the University of Nevada and Victor Flambaum and Vladimir Dzuba of the University of New South Wales have proposed in a paper published in Physical Review Letters a way to improve on the accuracy of atomic clocks. They suggest stripping away electrons from ions to reduce the negative effects of stray fields that reduce the performance of current atomic clocks.

NASA Astronaut to Discuss His Residency in Space

NASA astronaut Don Pettit, a veteran of three spaceflights, will discuss life and science aboard the International Space Station at the Arizona Science and Astronomy Expo Saturday, Nov. 10.

Keeping The Wheels Turning: Registration Open For 20th Annual NASA Great Moonbuggy Race

Registration is now open for the 20th annual NASA Great Moonbuggy Race, which challenges high school, college and university students around the world to build and race fast, lightweight "moonbuggies" of their own design.

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