Stanford University scientists have developed an advanced zinc-air battery with higher catalytic activity and durability than similar batteries made with costly platinum and iridium catalysts. The results, published in the ...
Energy & Green Tech
May 29, 2013
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The colossal earthquake that sent a devastating tsunami barreling into Japan two years ago on Monday was so big it could be heard from space, a study has said.
Earth Sciences
Mar 11, 2013
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The Navy's fifth Littoral Combat Ship (LCS), Milwaukee, will be the first to benefit from new high-power density waterjets aimed at staving off rudder and propeller damage experienced on high-speed ships.
Engineering
Feb 5, 2013
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(Phys.org)—Over the past few years, Li-air batteries (more precisely, Li-oxygen batteries) have become attractive due to their theoretical ability to store nearly as much energy per volume as gasoline. The key to this high ...
When lightning strikes from a towering cumulonimbus cloud down to the ground, the electrical discharge can perturb the atmosphere's electric field, potentially triggering a second event-sprite discharge. This more elusive ...
Earth Sciences
Dec 18, 2012
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(AP) -- After an entire century that included two high-profile government investigations and countless books and movies, we're still debating what really caused the Titanic to hit an iceberg and sink on that crystal-clear ...
Other
Apr 11, 2012
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Usain Bolt can achieve faster running times with no extra effort on his part or improvement to his fitness, according to a study published today in Significance, the magazine of the Royal Statistical Society and the American ...
Mathematics
Apr 4, 2012
3
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(PhysOrg.com) -- A team of scientists from the Naval Research Laboratory and George Mason University reports that the Earth's upper atmosphere has recently experienced the lowest density in 43 years. The team has published ...
Earth Sciences
Jun 21, 2010
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The air in Beijing during the 2008 Olympics was cleaner than the previous year's, due to aggressive efforts by the Chinese government to curtail traffic, increase emissions standards and halt construction in preparation for ...
Environment
Jul 24, 2009
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