One step closer to battle field lasers.

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One step closer to battle field lasers.

Postby crowey » Tue Mar 31, 2009 1:52 pm UTC

http://www.newscientist.com/article/mg2 ... loser.html

Hell yes.
In tests, it fired a 105-kilowatt beam - enough to destroy rockets, mortars and artillery shells - at a stationary target for 5 minutes

That is both awesome and terrifying all at once.


And to conform to new rules:
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Re: One step closer to battle field lasers.

Postby SlyReaper » Tue Mar 31, 2009 1:59 pm UTC

105kW? That's a hell of a lot of power. I wouldn't want to be on the business end of one of those.
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Re: One step closer to battle field lasers.

Postby Nomic » Tue Mar 31, 2009 4:48 pm UTC

Now they just need to mount it on a tank. I don't care if projectile weapons do just as good job at destroying tanks while being easier to use, I wan't my Laser Destroyer!

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Re: One step closer to battle field lasers.

Postby pseudoidiot » Tue Mar 31, 2009 4:50 pm UTC

But can it pop a house full of popcorn?

edit: left out a word
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Re: One step closer to battle field lasers.

Postby Izawwlgood » Tue Mar 31, 2009 5:02 pm UTC

pseudoidiot wrote:But can pop a house full of popcorn?


I see a new form of bioterrorism in the works! [In a british accent]"America's corn crop has been decimated, quite literally popped from under them! Movie sales reach an all time high as a crushed industry struggles to profit from millions upon millions of pounds of pop corn!"
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Re: One step closer to battle field lasers.

Postby Arancaytar » Tue Mar 31, 2009 6:53 pm UTC

Nomic wrote:Now they just need to mount it on a tank. I don't care if projectile weapons do just as good job at destroying tanks while being easier to use, I wan't my Laser Destroyer!


You know you have been on Slashdot too long if you read this post as "Now they just need to mount it on a shark."
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Re: One step closer to battle field lasers.

Postby Kizor » Tue Mar 31, 2009 7:26 pm UTC

"Yaaaaay."

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Re: One step closer to battle field lasers.

Postby Jahoclave » Tue Mar 31, 2009 8:02 pm UTC

Nomic wrote:Now they just need to mount it on a tank. I don't care if projectile weapons do just as good job at destroying tanks while being easier to use, I wan't my Laser Destroyer!

They already have them mounted on humvees. Though, they usually use them for ordinance and mine disposal.

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Re: One step closer to battle field lasers.

Postby gmalivuk » Tue Mar 31, 2009 8:04 pm UTC

SlyReaper wrote:105kW? That's a hell of a lot of power.

About 141 horsepower, to be exact. :-)
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Re: One step closer to battle field lasers.

Postby Izawwlgood » Wed Apr 01, 2009 12:31 am UTC

gmalivuk wrote:
SlyReaper wrote:105kW? That's a hell of a lot of power.

About 141 horsepower, to be exact. :-)


Watts are a measure of energy/time though right? What's the pulse of the laser? I mean, 141 horses of force isn't TERRIBLY impressive, unless it's applied over the course of like... half a second or so would make my eyes go wide.
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Re: One step closer to battle field lasers.

Postby ishikiri » Wed Apr 01, 2009 12:53 am UTC

Now they need to make it into a personal weapon. Something in the 40Kw range :D
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Re: One step closer to battle field lasers.

Postby Cynwulf » Wed Apr 01, 2009 1:16 am UTC

ishikiri wrote:Now they need to make it into a personal weapon. Something in the 40Kw range :D

Hey, just what you see pal. Of course that was a phased plasma rifle ;)
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Re: One step closer to battle field lasers.

Postby Sockmonkey » Wed Apr 01, 2009 2:23 am UTC

Man-portable lasers would be nifty but the optics have to be kept spotless and perfectly aligned. A tall order for something that has to withstand the rough-and-tumble of a battlefield.

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Re: One step closer to battle field lasers.

Postby gmalivuk » Wed Apr 01, 2009 3:33 am UTC

Izawwlgood wrote:
gmalivuk wrote:
SlyReaper wrote:105kW? That's a hell of a lot of power.

About 141 horsepower, to be exact. :-)

Watts are a measure of energy/time though right? What's the pulse of the laser? I mean, 141 horses of force isn't TERRIBLY impressive, unless it's applied over the course of like... half a second or so would make my eyes go wide.

"It fired a beam...for five minutes." I took that to mean continuous.
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Re: One step closer to battle field lasers.

Postby Jahoclave » Wed Apr 01, 2009 3:49 am UTC

gmalivuk wrote:
Izawwlgood wrote:
gmalivuk wrote:
SlyReaper wrote:105kW? That's a hell of a lot of power.

About 141 horsepower, to be exact. :-)

Watts are a measure of energy/time though right? What's the pulse of the laser? I mean, 141 horses of force isn't TERRIBLY impressive, unless it's applied over the course of like... half a second or so would make my eyes go wide.

"It fired a beam...for five minutes." I took that to mean continuous.

105kw is the peak output most likely. That's usually how they measure those things. So yes, it is applied over a relatively short period of time. I'm not sure, but this may be part of the new system of combining lasers that Northrup is developing (think Death Star minus the ability to blow up planets), which may account for the high power output. Either way, we need to build loads of these weapons (and no, that has nothing to do with the fact that my dad works for the company that makes almost all of Northrup's diodes for their lasers.).

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Re: One step closer to battle field lasers.

Postby Delass » Wed Apr 01, 2009 5:26 am UTC

So what would happen if it was focused on a human, missile, tank, crysis alien, etc for a second?

I mean, if it takes 5 minutes of focus to kill something, its not that useful. But if it kills everything in its path and takes a second per target, and can be sustained up to 5 minutes...WOAH!

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Re: One step closer to battle field lasers.

Postby SlyReaper » Wed Apr 01, 2009 8:10 am UTC

Delass wrote:So what would happen if it was focused on a human, missile, tank, crysis alien, etc for a second?

I mean, if it takes 5 minutes of focus to kill something, its not that useful. But if it kills everything in its path and takes a second per target, and can be sustained up to 5 minutes...WOAH!


Pretty sure it's the second case. You can give someone nasty burns with lasers whose power is measured in tens of milliwatts. This is approximately a million times more powerful.
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Re: One step closer to battle field lasers.

Postby Delass » Wed Apr 01, 2009 8:15 am UTC

Wow. I wonder how well we could use this technology for mining.

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Re: One step closer to battle field lasers.

Postby netcrusher88 » Wed Apr 01, 2009 8:53 am UTC

Delass wrote:Wow. I wonder how well we could use this technology for mining.

I like how you think. Seriously. Article about a massive laser in development for the military, and you think to put it to use on something constructive.

Brilliant.
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Re: One step closer to battle field lasers.

Postby ^.* » Wed Apr 01, 2009 9:19 am UTC

netcrusher88 wrote:
Delass wrote:Wow. I wonder how well we could use this technology for mining.

I like how you think. Seriously. Article about a massive laser in development for the military, and you think to put it to use on something constructive.

Brilliant.

Probably he just plays too much eve online.
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Re: One step closer to battle field lasers.

Postby SlyReaper » Wed Apr 01, 2009 9:47 am UTC

^.* wrote:
netcrusher88 wrote:
Delass wrote:Wow. I wonder how well we could use this technology for mining.

I like how you think. Seriously. Article about a massive laser in development for the military, and you think to put it to use on something constructive.

Brilliant.

Probably he just plays too much eve online.


But everyone who plays eve knows you don't use lasers for mining. You use minions.
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Re: One step closer to battle field lasers.

Postby Iv » Wed Apr 01, 2009 9:51 am UTC

Yay anyway because it certainly has more civilian uses than military uses. And in the latter, it is probably more suited as a defense weapon (anti-missile) than anything else...

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Re: One step closer to battle field lasers.

Postby SlyReaper » Wed Apr 01, 2009 9:59 am UTC

Oh I don't know, I think it might be able to melt a hole in the side of a tank in fairly short order.
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Re: One step closer to battle field lasers.

Postby Zamfir » Wed Apr 01, 2009 11:29 am UTC

http://www.thefabricator.com/LaserCutting/LaserCutting_Article.cfm?ID=1206

This link has some graphs about laser cutting. Apparently a 5kW laser can cut 10mm of mild steel with a speed of 2 mm/minute. Even assuming a 105kW laser on the battlefield can indeed cut 21 times as fast, we're still not making serious holes in tank armor, unless you can aim for several minutes.But for missiles it might well be good enough

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Re: One step closer to battle field lasers.

Postby el_loco_avs » Wed Apr 01, 2009 11:51 am UTC

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Re: One step closer to battle field lasers.

Postby SlyReaper » Wed Apr 01, 2009 12:13 pm UTC

Zamfir wrote:http://www.thefabricator.com/LaserCutting/LaserCutting_Article.cfm?ID=1206

This link has some graphs about laser cutting. Apparently a 5kW laser can cut 10mm of mild steel with a speed of 2 mm/minute. Even assuming a 105kW laser on the battlefield can indeed cut 21 times as fast, we're still not making serious holes in tank armor, unless you can aim for several minutes.But for missiles it might well be good enough


I stand corrected. Still, stick a few of these bad boys in your own tank formation, with a quick-response auto fire program, and you'd be practically immune to ballistic attacks.
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Re: One step closer to battle field lasers.

Postby Zamfir » Wed Apr 01, 2009 3:08 pm UTC

SlyReaper wrote:and you'd be practically immune to ballistic attacks.


I would say it works against guided missiles, that probably won't be guided anymore after being hit. But ballistics would be just as effective, unless you can actually melt the entire projectile shot at you.

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Re: One step closer to battle field lasers.

Postby Jahoclave » Wed Apr 01, 2009 8:53 pm UTC

SlyReaper wrote:
Delass wrote:So what would happen if it was focused on a human, missile, tank, crysis alien, etc for a second?

I mean, if it takes 5 minutes of focus to kill something, its not that useful. But if it kills everything in its path and takes a second per target, and can be sustained up to 5 minutes...WOAH!


Pretty sure it's the second case. You can give someone nasty burns with lasers whose power is measured in tens of milliwatts. This is approximately a million times more powerful.

Actually, it'd blow you up. It'd be dissipating way to much energy for your puny organs to handle.

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Re: One step closer to battle field lasers.

Postby MrGee » Wed Apr 01, 2009 9:16 pm UTC

Just like a microwave?? Not that I've ever stuffed someone into a microwave >.>

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Re: One step closer to battle field lasers.

Postby Cynwulf » Wed Apr 01, 2009 9:45 pm UTC

MrGee wrote:Just like a microwave?? Not that I've ever stuffed someone into a microwave >.>

Actually the US military has already deployed DEW (directed energy weapons). Raytheon built the Active Denial System for use in Iraq. Of course, I consider the "non-lethal" nature of the weapon to be dubious: I don't think a concentrated blast of microwaves to your eye or a key-chain in your pocket would be very safe.
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Re: One step closer to battle field lasers.

Postby Sockmonkey » Wed Apr 01, 2009 9:58 pm UTC

Well, you wouldn't have to hold it on him long enough to blow him up, just long enough to set him on fire.
More entertaining that way too.

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Re: One step closer to battle field lasers.

Postby Delass » Thu Apr 02, 2009 12:24 am UTC

^.* wrote:
netcrusher88 wrote:
Delass wrote:Wow. I wonder how well we could use this technology for mining.

I like how you think. Seriously. Article about a massive laser in development for the military, and you think to put it to use on something constructive.

Brilliant.

Probably he just plays too much eve online.

First, thanks.
Second, never played.

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Re: One step closer to battle field lasers.

Postby Princess Marzipan » Thu Apr 02, 2009 5:07 am UTC

Jahoclave wrote:Actually, it'd blow you up. It'd be dissipating way to much energy for your puny organs to handle.

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Re: One step closer to battle field lasers.

Postby Amnesiasoft » Thu Apr 02, 2009 6:09 am UTC

Princess Marzipan wrote:
Jahoclave wrote:Actually, it'd blow you up. It'd be dissipating way to much energy for your puny organs to handle.

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Like putting too much air into a balloon...and something bad happens...

Fixed that one for ya.

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Re: One step closer to battle field lasers.

Postby Crius » Thu Apr 02, 2009 2:44 pm UTC

105 kW @ 5 minutes translates to 8.75 kWh used.

At $0.036 per kWh (the cost in my area), it would only cost $0.315 to use this laser.

Pretty good bang for the buck.

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Re: One step closer to battle field lasers.

Postby 3.14chan » Mon Jun 15, 2009 6:33 pm UTC

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Raytheon has just been granted a one-year contract from the Navy for the preliminary design of a 100-kiloWatt FEL (Fee Electron Laser) for warships. The laser beams could be used against missiles, airplanes, or even boats. Take that, you silly pirates.

Once designed, the naval operators could adjust the wavelength of the laser, which wasn't possible with conventional lasers. This helps compensate for the varying humidity associated with ship-borne situations.

http://dvice.com/archives/2009/06/navyraytheon-wo.php
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Re: One step closer to battle field lasers.

Postby wst » Mon Jun 15, 2009 9:54 pm UTC

3.14chan wrote:(Fee Electron Laser)
So I guess you have to charge it? *facepalm*

Sorry for that pun liner.

I want to see how this stuff scales down into rave equipment. I mean, big lasers are difficult to carry and leave less room for alcohol. Imagine tiny lasers just as powerful as current laser illuminationy things! :o
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Re: One step closer to battle field lasers.

Postby Zamfir » Tue Jun 16, 2009 7:44 am UTC

wst wrote:I want to see how this stuff scales down into rave equipment.


Why scale down? Look at that picture! You could easily decorate a club with those.

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Re: One step closer to battle field lasers.

Postby SlyReaper » Tue Jun 16, 2009 8:00 am UTC

OR...

Shine the laser on a big rotating disco ball. Watch chaos ensue. :mrgreen:
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Re: One step closer to battle field lasers.

Postby Zamfir » Tue Jun 16, 2009 8:09 am UTC

SlyReaper wrote:Shine the laser on a big rotating disco ball. Watch chaos ensue


Or get two, and cross the beams.


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