Sep. 14th, 2007

groovychk: (science)

Originally published at Twixel.net. You can comment here or there.

http://dialog.newsedge.com/newsedge.asp?site=2006121916143901110346&block=folderstory&briefs=off&action=XMLStoryResult&smd=true&storyid=p0906509.2rw&rtcrdata=off

TUSTIN, Calif., Sept. 6 /PRNewswire/ — The aerospace industry has taken notice of a California researcher who, using off-the-shelf components, built and successfully demonstrated the world’s first successful amplified photon thruster. Dr. Young Bae of the Bae Institute first demonstrated his Photonic Laser Thruster (PLT) with an amplification factor of 3,000 in December, 2006.

Major aerospace agencies and primary contractors have since invited Bae to present his work, including NASA JPL, DARPA (Defense Advanced Research Projects Agency), and AFRL (Air Force Research Laboratory). Senior Aerospace Engineer at AFRL, Dr. Franklin Mead, “Dr. Bae’s PLT demonstration and measurement of photon thrust (is) pretty incredible. I don’t think anyone has done this before. It has generated a lot of interest.”

Recently, the Journal of Spacecraft and Rockets, a peer-reviewed AIAA (American Institute of Aeronautics and Astronautics) (http://www.aiaa.org) Journal, accepted Dr. Bae’s PLT demonstration paper, “Photonic Laser Propulsion: Proof-of-Concept Demonstration” for publication this year. In his paper Bae documents in explicit detail how he overcame the inherent inefficiencies of traditional photon thrusters in generating thrust by amplification with the use of an innovative optical cavity concept. For decades rocket scientists have tried to overcome the inefficiency of photon thrusters by amplification based on optical cavities separated from laser sources, but failed. In contrast, Bae’s patent-pending PLT breakthrough places the laser medium within a resonant optical cavity between two platforms to produce a very stable and reliable thrust that is unaffected by mirror movement and vibration — ideal for spacecraft control or propulsion.

Looking promising!

Originally published at Twixel.net. You can comment here or there.

Moon 2.0 Is The Next Mission For X Prize Group, And Google

Google is going to the moon, and it will spend $30 million to get there.

Google GOOG will sponsor the newest contest by the X Prize Foundation, which three years ago handed $10 million to a team that sent SpaceShipOne into suborbit and back twice over a two-week period. The nonprofit foundation seeks to promote scientific breakthroughs that benefit humanity.

In the new contest, which officials referred to as Moon 2.0, teams will compete to land a privately funded robotic rover on the moon. It will have to roam at least 500 meters of the lunar surface and complete several missions, such as transmitting photos and videos back to Earth.

A grand prize of $20 million will be awarded to the first team to do this no later than Dec. 31, 2012.

A second place award of $5 million will go to a second team that can complete this by Dec. 31, 2014.

Bonuses of $5 million will be awarded for additional tasks.

Seems like it should be more :-) Maybe add a zero. ;-)

Originally published at Twixel.net. You can comment here or there.

Currencies | Still hanging on | Economist.com

FOR several years, the darkest scenarios for the world economy have involved a dollar crash. The script was simple. America’s dependence on foreign capital was a dangerous vulnerability. At some point foreign investors would refuse to pile up ever more dollar assets. If investors were spooked, say by a crisis in American financial markets, they might ditch dollars fast. The greenback would plunge. A tumbling currency would prevent the Fed from cutting interest rates, deepening and spreading the economic pain.

Well, the financial shock has hit but where is the stampede out of dollars? The greenback has fallen, to be sure, particularly since it has become clear that the Federal Reserve is likely to cut interest rates on September 18th, and particularly against the yen and the euro—the dollar hit an all-time low of $1.39 per euro on Wednesday September 12th and its decline continued on Thursday.

But the decline, so far, has hardly been a panicked rout. Although the dollar has plumbed historical depths against an index of important currencies, it has fallen by less than 1.5% since the financial turmoil hit in early August. Measured against a broader group of currencies that includes all America’s main trading partners, the dollar is little changed from where it was before August’s tumult began.

Interesting. So things aren’t as bad as the chicken littles make it out to be. Typical.

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