Why Does This Knife Have a BUTTON?!

The WASP Injection Knife hides a surprising feature inside its handle: a compressed CO2 cartridge. A passage through the steel blade carries gas toward the tip, with the manufacturer advertising a pressure of 800 PSI. Marketed to divers for protection against dangerous marine predators, this unusual knife became known for demonstrations bursting watermelons with expanding gas. Here’s the strange engineering behind one of the most unusual knife designs. #Shorts #WASPKnife #KnifeFacts #Engineering #ScienceFacts #InterestingFacts #GleeMysteries Disclaimer For educational and documentary purposes. This video discusses weapon design and manufacturer claims; it does not encourage violence or provide self-defense advice. Do not recreate the demonstrations.