I say weapon because it gets to complicated with all the super powers you can get. Turning invisible, walking through walls, teleporting. So for this I want to limit it to sci fi weapons that at least attempt to have a tech basis. So like not the masters device that turns people into dolls. However we don’t care if we can completely explain how it might be done now. Like lightsabers are fair game. As for me I would go with the star gate zat guns as initially put in. Both lethal and nonlethas and very portable. I want to put an honorable mention for tthe minority report sonic shotgun that seems to run on wind up energy so you should never theoretically run out of ammo. although not so sure as there was no indication you could power up more than one shot at a time.
EDITED: Its a little late at this point as the answers have went way off the rails but in case it gets more replies my intention was a weapon someone might carry around and could use as one person. not a weapons system or vehicle. Also no robots or things that essentially are their own entities. It should be a weapon used in a weapon like manner. aim and fire. also that quote about sufficiently advance technology looks like magic. if it looks like magic to us instead of technology then its to far afield. I hope this makes it more clear what I was looking for. Honestly I would have like to not use weapons as a basis but there are just to many things when you look at all of sci fi.
Phaser.
you know I kinda forgot. it is kinda more utilitarian and they do show them running out but like it seems to take a lot to do so.
Phasers can vaporize people or even big piles of rock within seconds. We’re talking hundreds of millions of Joules of energy.
So it must have at least two batteries, right?
It’s got to be something more exotic than simply dumping energy into the target until it turns to vapor, otherwise there would be horrifying explosions of steam and guts and molten rock, instead of a soft hum and the disappearance of the target.
I choose to believe the vaporize function is actually a one way transporter beam. It digitizes them into the phaser and just deletes the file instead of sending it somewhere to be rebuilt.
That’s a good theory! The development of one could have led to the other. A beam that remotely disassembles something to its subatomic particles without an explosion would have been a necessary part of transporter development, regardless of which was invented first.
Unless they operate on different physics than our universe currently does, there’s no way around it. Energy is energy, it’s the currency of the universe.
It’s Star Trek. Of course it does.
In this case, it’s a fictional particle doing the heavy lifting. Explanations of exactly what it’s supposed to do seem to be inconsistent (it’s Star Trek), but at lower energy levels, it does electromagnetic stuff (including stunning living creatures), at medium energy levels, it does thermal stuff, and at high energy levels, it messes with the strong nuclear force.
Disintegrating something by messing with the strong nuclear force would probably have harmful effects on anything nearby, which is not addressed because it’s Star Trek.