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2018-07-03 at 4:10 PM UTCThe US has that ship with a rail gun on it I believe, those are more impressive than the laser guns. EDIT: oh wait, looks like China beat the US to the punch on that too...lololol
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2018-07-03 at 4:11 PM UTC
Originally posted by aldra lol, the chinese government's been in the business of making all sorts of weird tech claims lately, I wouldn't put too much stock in it until they actually field the thing.
I know both the US and Russia have been working on laser-based anti missile CIWS systems (Russia deployed one recently but hasn't released any details), but as a man portable weapon? there's no way you could supply enough power to it with lithium cells unless you have a literal truckload of them or you only want to keep the beam on for a single fraction of a second… short of fundamentally reworking the physics behind lasers and/or energy storage.
I remember the US was experimenting with plane-mounted lasers for missile interception in the 90s/2000s and the only way they managed to do it was with half the plane dedicated to a chemical reaction to generate power, and even that was only enough for 1 shot
A nuclear reaction would supply more than enough power. -
2018-07-03 at 4:12 PM UTCI like when my thumb nail is just long enough to make a little clickety clack sound as I scroll through threads on my phone. I sort of feel like how I imagine a girl feels when they walk with high heels in a mall or courthouse or whatever and it echoes through the room.
I love it I'm so highhhh -
2018-07-03 at 4:14 PM UTC
Originally posted by Jiggaboo_Johnson The US has that ship with a rail gun on it I believe, those are more impressive than the laser guns. EDIT: oh wait, looks like China beat the US to the punch on that too…lololol
lol, zumwalt
if I remember right they spec'd it to have a nuclear reactor because of the power requirements of that gun, then eventually decided they'd need 2 if they wanted the ship to move as well -
2018-07-03 at 4:19 PM UTC
Originally posted by aldra lol, the chinese government's been in the business of making all sorts of weird tech claims lately, I wouldn't put too much stock in it until they actually field the thing.
I know both the US and Russia have been working on laser-based anti missile CIWS systems (Russia deployed one recently but hasn't released any details), but as a man portable weapon? there's no way you could supply enough power to it with lithium cells unless you have a literal truckload of them or you only want to keep the beam on for a single fraction of a second… short of fundamentally reworking the physics behind lasers and/or energy storage.
I remember the US was experimenting with plane-mounted lasers for missile interception in the 90s/2000s and the only way they managed to do it was with half the plane dedicated to a chemical reaction to generate power, and even that was only enough for 1 shot
An 18650 puts out 100 watts easy - as in vape cigarettes.
I don't see any reason you can't put a dozen or two into a gun and use it to drive a 500 watt laser diode.
Only the Chinese would be nuts enough to suggest setting protestors on fire was a rational thing to do.
I heard before that the Chinese are really innovative, they just make stuff, and don't even stop to think if it's a good idea or not.
The idea that the Chinese lack creativity is kinda bunkum.
Here's a 50 watt handheld laser pointer (it'd set your whiteboard on fire tho)
https://www.htpow.com/gatling-laser-pointer-upgraded-version-p-1281.html -
2018-07-03 at 4:21 PM UTCCan't wait for the Clint Eastwood Magnum model for border control...lol.
Funny that after Tesla and other similar companies started building better electrical batteries all this new tech came out and yet Lockheed Martin is still trying to catch up designing airborne high-power laser weapons for tactical fighter jets. I'm sure the Chinese and Russians have better equipment and some plans right from the US. Lol. The Chinese also were pretty good at ripping off Cisco with no penalties long ago...I can just imagine what they're grabbing now. -
2018-07-03 at 4:30 PM UTCTesla just use Panasonic 18650s in their cars, which is odd, as it means a tesla battery is basically a sea of little batteries.
The following users say it would be alright if the author of this post didn't die in a fire! -
2018-07-03 at 4:32 PM UTC
Originally posted by Cootehill An 18650 puts out 100 watts easy - as in vape cigarettes.
I don't see any reason you can't put a dozen or two into a gun and use it to drive a 500 watt laser diode.
I heard before that the Chinese are really innovative, they just make stuff, and don't even stop to think if it's a good idea or not.
The idea that the Chinese lack creativity is kinda bunkum.
Here's a 50 watt handheld laser pointer (it'd set your whiteboard on fire tho)
https://www.htpow.com/gatling-laser-pointer-upgraded-version-p-1281.html
all lithium cells put out the same voltage (3.5-4.2v) and typically the same amperage, not sure how the high-discharge ones (ususally expensive multi-cell RC kits) differ though. I've seen a few laser pointers like that, but they're pretty far from being an effective weapon - one that can potentially penetrate through metal containers to ignite fuel inside would need to be significantly more powerful, especially at a range of 800m, both things the original article claimsOnly the Chinese would be nuts enough to suggest setting protestors on fire was a rational thing to do.
the US led the way in microwave research for that reason lol, the only reason they stopped is because the line between irritation, serious burns and probable cancer wasn't all that well defined in terms of power level -
2018-07-03 at 4:35 PM UTC
Originally posted by Cootehill Tesla just use Panasonic 18650s in their cars, which is odd, as it means a tesla battery is basically a sea of little batteries.
that's interesting actually, I'd expect it to be more efficient to use purpose-built cells...
maybe the extra cost wasn't worth it. or is that just a prototype?
***actually safety and serviceability if a single cell fails makes sense -
2018-07-03 at 4:39 PM UTC
Originally posted by aldra that's interesting actually, I'd expect it to be more efficient to use purpose-built cells…
maybe the extra cost wasn't worth it. or is that just a prototype?
Most lithium batteries are a collection of smaller ones, like your laptop battery if you opened it up would be a bunch of smaller cells. It keeps cost down, as the small cells can be mass produced, it's safer, as if one cell blows out the explosion is smaller, and it's helpful for things like load balancing, as cells lose capacity and tend to charge at different rates.
Tesla have been on about new battery technology, but for now the world seems to run on 18650s. -
2018-07-03 at 4:45 PM UTC
Originally posted by Cootehill Most lithium batteries are a collection of smaller ones, like your laptop battery if you opened it up would be a bunch of smaller cells
yeah, that's where I used to get them for projects when I was working for a big company, lol. most of those USB batteries use them as well.
a lot of electronics and specialist equipment use different kinds of cells for efficiency and space requirements though; macbooks and other 'ultralight' laptops are a good example -
2018-07-03 at 4:46 PM UTCYup, I rebuilt a Compaq Contura laptop battery a few months ago using a dozen cells I bought on Ebay.
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2018-07-03 at 4:49 PM UTC
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2018-07-03 at 4:49 PM UTC
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2018-07-03 at 4:54 PM UTC
Originally posted by benny vader electrical power can come from one of two sources :
batteries
or
capacitors.
so are you going to precharge a literal truckload of capacitors so they're capable of powering more than one shot?
or are you going to use said truckload of batteries to charge them between shots?
fyi, I think powerlabs that did an experiment using capacitors to charge a 'portable' railgun and the only way they could cycle it in a reasonable timeframe was using a 4cylinder car engine and alternator.
PS. I just remembered - pretty sure the output wattage given on lasers is calculated based on the beam and has nothing to do with the power supply driving it -
2018-07-03 at 5:02 PM UTCwhat are u guys trying to do poppa bloon with a lasor poiner?
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2018-07-03 at 5:34 PM UTC
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2018-07-03 at 5:40 PM UTCSome German fellow by the sounds of it.
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2018-07-03 at 5:40 PM UTC
Originally posted by Cootehill Tesla just use Panasonic 18650s in their cars, which is odd, as it means a tesla battery is basically a sea of little batteries.
Open up any AA batteries. they're just a bunch of button batteries wrapped together. this is hillarious. so everyone of those round nubs is a button battery?
that's actually pretty cool. but how can they get them to last for 50k miles with that many charges. no, these aren't over the counter NiCad they researched a long time to get this many recharges out of the material used in those button batteries (if that is how it's done)
it wasn't like the technology was always there. someone else would of built this in their own garage. it's some material that probably isn't even disclosed. or "Non active" ingredience (Which extended the recharge life) not needed to be disclosed. -
2018-07-03 at 5:43 PM UTC
