|
Science Forum Index » Optics Forum » 300 terawatts!!!
Page 1 of 1
|
| Author |
Message |
| Skywise |
 Posted: Mon Feb 18, 2008 4:17 pm |
|
|
|
Guest
|
|
| Back to top |
|
| Lostgallifreyan |
| Posted: Mon Feb 18, 2008 5:14 pm |
|
|
|
Guest
|
Skywise <into@oblivion.nothing.com> wrote in
news:13rjpuqtdj2mgb6@corp.supernews.com:
Quote: I'll take two....
"The record-setting beam measures 20 billion trillion
watts per square centimeter. It contains 300 terawatts
of power. That’s 300 times the capacity of the entire
U.S. electricity grid. The laser beam's power is
concentrated to a 1.3-micron speck about 100th the
diameter of a human hair."
http://www.ns.umich.edu/htdocs/releases/story.php?id=6346
Brian
Nice. Even reduced to a CW equivalent it's no slouch at 900 mW, so that kind
of energy in pulses that small might do some very odd things. I just hope I
can understand them when I hear about them.
(My working for 900 mW average: 30E-15 seconds / 10 seconds * 300E12 Watts) |
|
|
| Back to top |
|
| Lostgallifreyan |
| Posted: Mon Feb 18, 2008 5:27 pm |
|
|
|
Guest
|
Lostgallifreyan <no-one@nowhere.net> wrote in
news:Xns9A48D813059DAzoodlewurdle@140.99.99.130:
Quote: (My working for 900 mW average: 30E-15 seconds / 10 seconds * 300E12 Watts)
Assuming I didn't do something stupid there, it follows that 9 joules are
delivered in that tiny spot in that tiny instant. Robert E. Iannini describes
a 3 joule ruby laser that can do hot things to wood with a 1 square CM spot,
and that's a lot more than an SSY-1 can do at less than 1 joule (I think)
and even those can make air break down violently. I doubt any form of matter
could stand in the way of that new laser unless you put enough of it in its
path to absorb all the energy. |
|
|
| Back to top |
|
| Richard J Kinch |
| Posted: Mon Feb 18, 2008 5:36 pm |
|
|
|
Guest
|
Skywise writes:
Quote: http://www.ns.umich.edu/htdocs/releases/story.php?id=6346
Great. We desperately need fusion power, and here they're inventing
backwards gadgets to turn energy into matter. |
|
|
| Back to top |
|
| Skywise |
| Posted: Mon Feb 18, 2008 6:26 pm |
|
|
|
Guest
|
|
| Back to top |
|
| |
