Best science pun you know (for shirts)?

I kinda need really good ideas. I don't care if they already have it in shirt prints or not. So give me your best shot please :D

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DeWayfarer · 61-69, M

Long time ago this was popular. Like back in the 80's.

Casheyane · 31-35, F

@DeWayfarer Oooooh burn! Nice

iamnikki · 31-35, F

@DeWayfarer I can see the reader of the shirt asking " what does that mean🤔?"

Then you can say, " in this case, you are the unarmed man"🤣