Why do laser rifles have recoil?

Maybe there's a mechanical system going on inside the gun for cooling or energy generation purposes

Laser energy is stored in capsules, much like a modern firearm cartridge stores the primer, powder and bullet.

Laser weapons use heat to burn their target, dipshit

youtube.com/watch?v=tyUh_xSjvXQ

Super heating of the air as the beam is generated kicking back the rifle.

WRONG

This guy gets it.

Every action has an equal and opposite reaction, and light travels way faster than a bullet so it stands to reason laser rifles have even more recoil than a regular gun.

The real question is how is the world inhabitable after all the nuclear bombs went off? Apparently Chernobyl will be uninhabitable for another 20,000 years but the first Fallout takes place less than a 100 years after the war. I can maybe understand the west coast Fallout games because they weren't hit as hard but surely DC got bombed to hell and back and would still be fucked 200 years later no?

>smg laser gun has you loading a drum mag with AA batteries

Why do robot characters always have breathing movement when aiming?

Light does not have mass.

Because

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because light has weight to it you dumbass

Laser beam really hot. Hot beam makes air hot. Hot air move fast in colder air. Air move fast makes thing move.

yeah, my guess is the superhot air gets blasted away from you when you shoot, so you don't, you know, burn

user, don't freak out right now but there's these two places called Hiroshima and Nagasaki, i think you'd be interested in them.

That's not how solar sails work

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The laser RCW spinning mag has contacts that makes the laser light up when the contacts touch and then turn off when the contacts move past the barrel. It's how a brushed electric motor works

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Why is the AER9 such an ugly piece of shit compared to the chad Watz 2000?

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yeah, but that was only 2 bombs, according to the fallout wiki at least 10,000 bombs fell during the war and 70 were dropped (and destroyed before hitting the ground) on vegas

i want that body dissolving weapon

Momentum is conserved in a system. The gun starts with zero momentum. We fire, give the bullet momentum, and so to keep the system at zero momentum, the gun must gain equal and opposite momentum. That is, the gun will move backwards. All of that was for conventional guns. Light carries momentum, so if we fire a pulse of light, we expect our laser gun to recoil. So yes, they do have recoil. The question we really mean to ask is, does a laser gun have noticeable recoil?
We need to make a few reasonable assumptions. Let's assume that the laser gun fires a pulse with as much energy as a bullet has kinetic energy, KE. The energy, E, of light is related to its momentum, p, by E=pc, where c is the speed of light. This gives a momentum of \[ E=KE=pc \] \[ p=\frac{KE}{c}\]
What is the kinetic energy of a bullet? A little searching reveals that a .22 bullet is ~2.5g and fires with a muzzle velocity of ~330m/s. Kinetic energy is given by KE=1/2mv^2, where m is mass and v velocity. So, the momentum of a laser pulse with equal energy would be \[ p=\frac{mv^2}{2c} \]
\[ p=\frac{.0025kg*(330m/s)^2}{2*3\cdot 10^8m/s} \]
\[ p=4.5\cdot10^{-7}kg \cdot m/s \] For comparison, the momentum (p=mv) of a .22 bullet is .83 kg*m/s. The momentum of a laser gun is 2 million times less than the momentum of a .22.
1/2

it was just a question

But is momentum all we should consider? I suspect the 'kick' we feel on the recoil is directly related to the force that the gun exerts on the holder. This means that instead of momentum we need to consider impulse, momentum per time. We estimate the time it takes to fire a .22 is ~.1s, so the force delivered 8.3 N.
Let's estimate the time it takes a laser gun to fire. Unfortunately, not having a laser gun to fire, we're more or less going to have to guess at the firing time. Most movies with laser guns show pulses of light (which, incidentally would move so fast we wouldn't see them) on the order of a meter or two long. Given the speed of light, this would give a firing time of ~30 nanoseconds. This would give a force delivered of 15 N. This is close to what we estimated or a .22. So, if movies are to be believed, it seems like laser guns may well have recoil.
2/2

Not him but the difference is the fallout from a bomb doesn't actually last long, it dissipates within like less than a year. Chernobyl and Fukushima just constantly let out radiation, and more importantly it's a different kind of radiation that lasts a lot longer.

Fallout nuclear bombs (and atomic tech) don't behave the same way our nuclear bombs work.

>yo check it out, we were too lazy to make animations for a cyberpunk hand-cannon, but it would have been pretty killer if we did!

Fallout lasers are hard light, like Star Trek holograms are hard light.

Legit because in lore the AER9 was cheaper to produce, like the design difference between the Thompson and the Sten. Literally just slap a military grade laser generator onto some rifle framing and you've got a chink killing monster.

>The real question is how is the world inhabitable after all the nuclear bombs went off? Apparently Chernobyl will be uninhabitable for another 20,000 years but the first Fallout takes place less than a 100 years after the war.
Chernobyl is uninhabitable because literally hundreds of tons of fuel slowly burned for days compared to an instant airburst/explosion of ww2 nukes where less than 200 pounds of nuclear material combined was used.

>Star Trek holograms are hard light
They're forcefields with pictures put on top

It looks cool

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