News tagged with helium

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Physicists create tabletop antimatter 'gun'

(Phys.org) —An international team of physicists working at the University of Michigan has succeeded in building a tabletop antimatter "gun" capable of spewing short bursts of positrons. In their paper published ...

Jun 25, 2013 weblog
4.9 / 5 (69) 18 | with audio podcast

Thermal shield testing on Webb's MIRI

(Phys.org) —NASA engineer Acey Herrera recently checked out copper test wires inside the thermal shield of the Mid-Infrared Instrument, known as MIRI, that will fly aboard NASA's James Webb Space Telescope. ...

May 09, 2013
4.3 / 5 (3) 0 | with audio podcast

Probing Question: Are we running out of helium?

Party planners, take note: the atmosphere may become a little deflated at gala events in the future. Some scientists are sounding the alarm about the wastefulness of using helium—a rare, non-renewable gas—to fill party ...

Apr 26, 2013
4.6 / 5 (28) 11

Heating the solar wind

(Phys.org) —The Sun glows with a surface temperature of about 5500 degrees Celsius. Meanwhile its hot outer layer (the corona) has a temperature of over a million degrees, and ejects a wind of charged particles ...

Apr 03, 2013
5 / 5 (3) 2 | with audio podcast