Tuesday, November 25, 2014
Tuesday, November 18, 2014
'The probe that landed on the surface of a comet has discovered organic molecules, the most rudimentary building blocks of life, according to the German agency involved in the mission.
An instrument aboard the Philae lander detected the molecules after "sniffing" the comet's atmosphere. An organic compound is one whose molecules contain the carbon atom, the basis of life on earth.
Scientists are analyzing the data to see whether the organic compounds detected by Philae are simple ones—such as methane and methanol—or a more complex species such as amino acids, the building blocks for proteins. A drill on Philae also obtained some material from the comet's hard surface, but data about organic molecules from that experiment have yet to be fully analyzed.'
Monday, November 17, 2014
'Physicists have engineered a spiral laser beam and used it to create a whirlpool of hybrid light-matter particles called polaritons, hybrid particles that have properties of both matter and light and could link electronics with photonics.'
'Engineers have successfully printed complex electronic circuits using a common t-shirt printer. The electronic circuits are printed using unique materials in layers on top of everyday flexible materials such as plastic, aluminum foil and even paper. Resistors, transistors and capacitors, the key components of a complex electronic circuit, are printed using non-toxic organic materials like silver nanoparticles, carbon and plastics.'
Monday, November 10, 2014
Thursday, November 6, 2014
Tuesday, November 4, 2014
'Ghez, who studies thousands of stars in the neighbourhood of the supermassive black hole, said G2 appears to be just one of an emerging class of stars near the black hole that are created because the black hole's powerful gravity drives binary stars to merge into one.
Ghez also noted that, in our galaxy, massive stars primarily come in pairs. '