Physics in the News

Tuesday, September 23, 2014

Brian Cox: ‘Multiverse’ makes sense

via bbc.com

UNC professor says black holes can’t exist (PDF)

Evolution of pressure-free collapse with Hawking radiation. For easy of plotting, the luminosities are scaled by a factor of 1000. The thin dashed lines in the upper panel represent the respective quantities in a pure Oppenheimer-Snyder collapse of the same initial conditions.

Evolution of pressure-free collapse with Hawking radiation. For easy of plotting, the luminosities are scaled by a factor of 1000. The thin dashed lines in the upper panel represent the respective quantities in a pure Oppenheimer-Snyder collapse of the same initial conditions. (Credit: Mersini-Houghton, Pfeier)

via uncnews

Einstein’s Greatest Legacy

Einstein, like no other physicist before or after him, demonstrated how the power of human thought alone, used skillfully, can allow us to consider experiments that could never be practically performed. This line of thinking, these experiments performed only in our imaginations, showed we little humans often have the power to deduce equations that govern the natural world by logical deduction alone.(Credit: Siegel, Luis Royo Fantasy Art, via Photobucket user mikenolan78)

Einstein, like no other physicist before or after him, demonstrated how the power of human thought alone, used skillfully, can allow us to consider experiments that could never be practically performed. This line of thinking, these experiments performed only in our imaginations, showed we little humans often have the power to deduce equations that govern the natural world by logical deduction alone. (Credit:E. Siegel, Luis Royo Fantasy Art, via Photobucket user mikenolan78)

via medium

It’s okay: electromagnetic force hasn’t changed in 10 billion years

Astronomers find the strength of the electromagnetic force hasn’t changed in ten billion years. “We didn’t see any difference between electromagnetism in these three distant galaxies and here on Earth, so we don’t support that previous finding,” says Associate Professor Michael Murphy of Swinburne University. (S. Garry, Michael Murphy/Swinburne )

via abc

How cloud chambers revealed subatomic particles

Photograph of a cloud chamber showing the first discovered positron. (Credit: Carl D. Anderson)

Photograph of a cloud chamber showing the first discovered positron. (Credit: Carl D. Anderson)

via phys.org

Evidence for cosmic inflation wanes

Planck’s new microwave maps cast doubt on earlier results. (Credit: ESA/NASA/JPL-Caltech)

Planck’s new microwave maps cast doubt on earlier results. (Credit: ESA/NASA/JPL-Caltech)

via sciencemag

India’s Mars Orbiter Mission could make history tomorrow

On Wednesday, Sept. 24, India could join the ranks of NASA, the European Space Agency and Russian Federal Space Agency having a successful mission to Mars. (Credit: AFP / Files / Manjunath Kiran)

via salon

When research worlds collide

via symmetrymagazine

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