Think before when switching on the TV all the night while you are having a tight sleep. Think before when switching on you geyser all the day, when it heats and cool in cycles... Think before wasting electricity -  as a UN report says that more than one quarter of the 6 billion world's population have no access to electricity. 

On 23rd November, the LHC circulated two beams simultaneously for the first time, allowing the operators to test the synchronization of the beams and giving the experiments their first chance to look for proton-proton collisions. With just one bunch of particles circulating in each direction, the beams can be made to cross in up to two places in the ring...

Liberian girls and women should draw inspiration from the all-female Indian police unit serving with the United Nations Mission in Liberia (UNMIL) to join law enforcement agencies in the service of their own nation, the top UN official in the West African country said today. 

 NASA launched a social media experience at the Kennedy Space Center in Florida that quickly turned into an unprecedented world-wide event as more than 100 Twitter users got a unique look inside America's space program and front row seats to the Nov. 16 liftoff of the space shuttle Atlantis.. 
 

For microsoft, Apple  and others OS may stand for "Operating System" but google makes it's OS - read as "Open Source".  So going by the online buzz last week, Google finally releases the Chromium OS, not complete OS but as expected it outsourced it's code for online developers - Read the Google Blog Post here .

NASA and Microsoft Corp. of Redmond, Wash., have collaborated to create a Web site where Internet users can have fun while advancing their knowledge of Mars...

You might have read in physics, the carnot law - which says however hard you may try you can't convert al heat into energy and sets a theoritical limit on the efficiency of conversion of heat into energy. All modern/ancient/medival (any era's) heat engines efficiency is far less than that. May be some one-tenth of the limit set by carnot efficiency. Now MIT students say their research can lead to an efficiency upto 90 % of carnot limit, confirmed by experiments involving a different new technology, thermal diodes (demonstrated upto 40% of carnot eficiency as of now) .