shychemist
thenewenlightenmentage:

Cosmologists Prove Negative Mass Can Exist In Our Universe
Astrophysicists have always thought negative mass requires exotic physics that would be impossible in our cosmos. They were wrong.
Negative mass is the hypothetical idea that matter can exist with mass of the opposite sign to the ordinary stuff. Instead of 2 kg, a lump of negative mass would be -2 kg.
Nobody knows whether negative mass can exist but there have nevertheless been plenty of analyses to determine its properties. In particular, physicists have investigated whether negative mass would violate various laws of the universe, such as the conservation of energy or momentum and therefore cannot exist. These analyses suggest that although the interaction of positive and negative mass produces counterintuitive behaviour, it does not violate these conservation laws.
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thenewenlightenmentage:

Cosmologists Prove Negative Mass Can Exist In Our Universe

Astrophysicists have always thought negative mass requires exotic physics that would be impossible in our cosmos. They were wrong.

Negative mass is the hypothetical idea that matter can exist with mass of the opposite sign to the ordinary stuff. Instead of 2 kg, a lump of negative mass would be -2 kg.

Nobody knows whether negative mass can exist but there have nevertheless been plenty of analyses to determine its properties. In particular, physicists have investigated whether negative mass would violate various laws of the universe, such as the conservation of energy or momentum and therefore cannot exist. These analyses suggest that although the interaction of positive and negative mass produces counterintuitive behaviour, it does not violate these conservation laws.

Continue Reading

amazingphysics

perpetual-dawn:

Venus is the second closest planet to the Sun and has the highest surface temperature of any planet in our solar system, with an orbital period of about 225 Earth days. Because of its similar gravity and size, it is sometimes known as Earth’s “sister planet.” However, besides these two aspects, the two planets have almost nothing in common. With the densest atmosphere on any terrestrial planet in the solar system, the surface pressure on Venus is about 92 times that of Earth; the same pressure one kilometer beneath Earth’s oceans.

Even though Venus is comparatively much further away from the Sun than Mercury, it is the hotter planet with a surface temperature of around 462 °C; this is because of its dense atmosphere of greenhouse gases such as carbon dioxide and sulfur dioxide. One remarkable aspect of the atmosphere of Venus is the precipitation of liquid sulfuric acid. The surface geology of the planet has been observed by NASA for over twenty years now, and it is seen that there is extensive and violent volcanism at the surface.

(image sources: NASA; http://www.the8planets.com/wp-content/gallery/planet-venus/venus-atmosphere.jpg, http://www.boskowan.com/blanensko/)

aimlessinspace
thedemon-hauntedworld:

Face-on spiral galaxy NGC 3982

NGC 3982 is located about 68 million light-years away in the constellation Ursa Major. The galaxy spans about 30,000 light-years, one-third of the size of our Milky Way galaxy. This colour image is composed of exposures taken by the Hubble Space Telescope’s Wide Field Planetary Camera 2 (WFPC2), the Advanced Camera for Surveys (ACS), and the Wide Field Camera 3 (WFC3). The observations were taken between March 2000 and August 2009. The rich colour range comes from the fact that the galaxy was photographed invisible and near-infrared light. Also used was a filter that isolates hydrogen emission that emanates from bright star-forming regions dotting the spiral arms.

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

thedemon-hauntedworld:

Face-on spiral galaxy NGC 3982

NGC 3982 is located about 68 million light-years away in the constellation Ursa Major. The galaxy spans about 30,000 light-years, one-third of the size of our Milky Way galaxy. This colour image is composed of exposures taken by the Hubble Space Telescope’s Wide Field Planetary Camera 2 (WFPC2), the Advanced Camera for Surveys (ACS), and the Wide Field Camera 3 (WFC3). The observations were taken between March 2000 and August 2009. The rich colour range comes from the fact that the galaxy was photographed invisible and near-infrared light. Also used was a filter that isolates hydrogen emission that emanates from bright star-forming regions dotting the spiral arms.

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

asapscience

asapscience:

generalelectric:

On July 20, 1969, Neil Armstrong and Buzz Aldrin became the first people to walk on the moon. The giant leap was made possible by decades of scientific research, rigorous testing, and new innovations spearheaded by NASA with collaborations by many other groups and organizations, one of which was GE. Among other contributions to the technology of the Apollo program, GE researchers developed a special silicon rubber for the astronaut’s boots. This week, to celebrate the 45th anniversary of the moon landing, GE, Android Homme and JackThreads collaborated on a new sneaker called The Missions, which Buzz Aldrin is wearing in the picture above. The sneakers feature lightweight carbon fiber used for jet engine components, and a hydrophobic coating similar to the materials that prevent ice from forming on wind turbines. Read more about the collaboration at GE Reports

WTF THIS MAN IS SO FRICKIN’ COOL… Cannot get over it today.