Einstein’s theory of special relativity includes electricity and magnetism in a simple, logical extension of the relativity of Galileo and Newton. Its conclusions, including time dilation, length contraction, and E=mc2 have changed profoundly our ideas of time and space, matter and energy. Find more at http://www.phys.unsw.edu.au/einsteinlight/ The link will open in a new window.
Author(s): A. L. Schawlow and C. H. Townes<br/>The extension of maser techniques to the infrared and optical region is considered. It is shown that by using a resonant cavity of centimeter dimensions, having many resonant modes, maser oscillation at these wavelengths can be achieved by pumping with reasonable amounts of incoherent light. For wav…<br/><img src="http://prola.aps.org/graphics/free2read30x30.gif" width="30" height="30" alt="Free to Read"/><br/>[Phys. Rev. 112, 1940] Published Mon Dec 15, 1958
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Human Resource Development Minister, Mr. Kapil Sibal announced that all school boards across India will have a common syllabus in science and mathematics for Classes 11 and 12 from the 2011 academic year. This decision has been taken to give these subjects the same level in competitive examinations. Mr. Sibal met at least 20 school…… Continue reading Common Curriculum For Maths And Science Across India From 2011
The advent of the new technological era has redefined the very parameters of today’s workplaces. And consequently of the school education process. The role of the teacher has subtly shifted from being the sole ‘provider’ of knowledge. To being a facilitator as the student explores for himself, the expansive world of knowledge. From being a…… Continue reading Advantages of Online Technology Aided Learning
if space time started with the origin of the universe, is it not for our universe. Can’t there be another such universes? Is it not possible that the primordial mass existed within a bigger universe – the mother of all baby universes? Are there any theories disproving such a possibility? I’ve not heard so far. If there is a…… Continue reading BEGINNING OF UNIVERSE – SOME QUESTIONS