Physics News
Scanning electron microscopy – Wellcome Image Awards 2009 (HD)
Electron microscopes use a beam of electrons rather than photons of light to generate images from their subjects. Watch this video to see how a scanning electron microscope is used to image objects that may only be a few nanometres in thickness. For more information see www.wellcomeimageawards.org Read More →
The dependence of star formation activity on environment and stellar-mass at z~1 from the HiZELS H-alpha survey. (arXiv:1007.2642v1 [astro-ph.CO])
(Abridged) This paper presents an environment and stellar mass study of a large sample of star-forming (SF) galaxies at z=0.84 from the HiZELS survey, over 1.3 deg^2 in the COSMOS and UKIDSS UDS fields. By taking advantage of a truly panoramic coverage, from the field to a rich cluster, it is shown that both...
http://feeds.feedburner.com/~r/Livesciencecom/~4/at3uV0A84O8
Cages Change Mice Brains, Lab Studies Questioned
Research results may not be trustworthy. Livescience.com Read More →
See AllBooks
http://ecx.images-amazon.com/images/I/61BT8J2FPQL._SL160_.jpg
Nightwatch: A Practical Guide to Viewing the Universe
Nightwatch: A Practical Guide to Viewing the Universe With 250,000 copies in print since its initial publication in 1983, NightWatch has become a standard reference guide for stargazers throughout North America. The new Third Edition expands on that success with a completely revised and updated...
http://actaphysica.com/blog/wp-content/plugins/WPRobot3/images/4.png
Pushing Electrons: A Guide for Students of Organic Chemistry
Pushing Electrons: A Guide for Students of Organic Chemistry SpartanModel replaces the plastic models used by past generations of organic chemistry students. This set of easy-to-use digital builders allows you to construct and manipulate 3-D molecules of any size or complexity. Rating: (out of 10...
http://ecx.images-amazon.com/images/I/51-gIgzYBxL._SL160_.jpg
Introduction to Light Emitting Diode Technology and Applications Reviews
Introduction to Light Emitting Diode Technology and Applications Recent improvements in LED technology have made them as ubiquitous as cell phones. In fact, LEDs light up almost all cell phones screens. The technology’s myriad applications and low energy use have made it nearly impossible to get through...
See AllTheoretical Physics
-> view full discussion <- Dyau: The evidence so far: We know that Hawking radiation is emitted by all black holes. The rate at which a black hole radiates is inversely proportional to the square of its mass. We also know that Hawking radiation does not conserve Baryon Number. In other words,...
-> view full discussion <- Dyau : Friends, thought of throwing up a few current open questions/problems in cutting-edge black hole research and seeing what you all think of them. Firstly, let us define black holes: Black holes are predicted by general relativity to be formed whenever...
-> view full discussion <- Dyau: Friends, let me share a problem I’ve been pondering. Consider two black holes which we define as below: 1) Black Hole 1 (BH1) has the mass of a proton (0.938 GeV) and contains a positive charge equivalent to the charge of a proton (1.602176487 ×...
See All Theoretical Physics PostsExperimental Physics
Sensational picture of the ISS and Endeavor transiting the Sun
Take a look at this amazing picture taken by French astrophotographer Thierry Legault. It shows the space shuttle Endeavor and the International Space Station – docked together, transiting the Sun. Undoubtedly one of the photos of the year. The International Space Station and space shuttle Endeavor...
-> view full discussion <- Dark Energy Camera scans ancient skies Gazing into space, scientists wonder why the universe is expanding ever faster. What mysterious force is at work? By recording the light from hundreds of millions of galaxies from a mountaintop in Chile, they hope to find...
See All Experimental Physics Posts
