Weapons in Sci-Fi that do not make sense and why

[Mr. Oragahn]

Well, why limit ourselves to Sci-Fi?

We have good old Elephant guns here on Earth...
I can see lots of times when firing an Elephant at something may prove useful...
Made to be fired by only one human while standing up and with no other support...
Though how one human can hold this gun in place with an Elephant loaded in one defies my understanding of physics...

Naaaah. I can already see the recoil being a problem here. You're pretty much limited to ballistic shots and some considerable grounding before firing the platform.
It's probably some kind of howitzer...

[Mr. Oragahn]

Okay, now that one is crazy.
A laser sword.

A container is something that contains, right?
A singer... sings.

But a laser? What's that?

Mmm... wait. Does a mother moth?
I may be missing something here but I'm not sure what...

I suppose the sword lases, as in using a laser. So once you hold the sword, it sorts of shoots lasers in all directions like some disco ball.
Didn't Link use something similar in Zelda ?

[Trinoya]

For the life of me I can't figure out why modern warfare still uses Tomahawks, and thrown at that!? Makes no sense...

More importantly, why do we keep sending dudes named Abrams into battle with water tanks?

[Mr. Oragahn]

For the life of me I can't figure out why modern warfare still uses Tomahawks, and thrown at that!? Makes no sense...

Not even jingoism can explain that.

More importantly, why do we keep sending dudes named Abrams into battle with water tanks?

Perhaps because it's suited for the terrain? they're mostly used in the Middle East region.

[Mr. Oragahn]

There's been a variant of DEW I've heard of repeatedly for the last ten years.

LAZORZ.

It's the plural of LAZOR, ok.
Then, again, is it different somehow related to laziness?
They seem to be awesome devices in most cases, yet with an obvious minimal amount of work (W) provided within any reasonable amount of time (T) (and we can be generous), I can't figure how these "lazorz" can be anywhere powerful (P), according to P = W/T.

[Praeothmin]

Speaking of DEW, how can one make a "Mountain DEW"?
Is it simply speaking the equivalent of a mountain-sized chemical explosion?

[Mr. Oragahn]

Speaking of DEW, how can one make a "Mountain DEW"?
Is it simply speaking the equivalent of a mountain-sized chemical explosion?

Imagine the DOD budget for that. O_O