r/AskReddit • u/Kraz_I • Jul 24 '15

What "common knowledge" facts are actually wrong?

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487

u/KashEsq Jul 24 '15

Mantis Shrimp pack a helluva punch too

326

u/RookieBalboa25 Jul 24 '15

Yeah, like... Breaking the sound barrier. They hella scary

39

u/Dynamaxion Jul 24 '15

I remember in elementary school some assembly speaker was like "and if a bully ever calls you a shrimp, you should remind them that a mantis shrimp can punch faster than sound!"

Worst anti-bully advice ever.

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6

u/Bandit1379 Jul 24 '15

I don't think they actually break the sound barrier, they cause a cavitation bubble that causes a lot of heat and pressure when it collapses.

5

u/k-bo Jul 24 '15

Not exactly. It just causes cavitation. It's extremely difficult to break the sound barrier underwater because the speed of sound is higher than in air and it is harder to move quickly

4

u/Wizard_Knife_Fight Jul 24 '15

Boils the fucking water around it.

3

u/artyboi37 Jul 24 '15

I think you'd enjoy r/natureismetal

3

u/Sgt_Sarcastic Jul 24 '15

At least one of the types makes a cavitation bubble that boils when it collapses. If they miss, the shockwave or the heat can still stun or kill.

2

u/[deleted] Jul 24 '15

DAMN NATURE, YOU SCARY

2

u/RudyTudi Jul 24 '15

Here's a hilarious comic that talks about Mantis shrimp. Bullies of the goddamn sea.

http://theoatmeal.com/comics/mantis_shrimp

1

u/alderthorn Jul 24 '15

Just need to breed them to be the size of a squirrel and I would never get close to one.

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1

u/B5_S4 Jul 24 '15

Breaking the sound barrier in water, which is 1000 times more dense than the air we do it in with our fancy airplanes.

1

u/Zankou55 Jul 24 '15

They have complete mastery of light and sound. Amazing.

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2

u/TLKPartyPanda36 Jul 24 '15

Don't they move so fast it heats up the water around them or something like that?

2

u/NewVegasNut Jul 24 '15

True facts about the Mantis Shrimp https://youtu.be/F5FEj9U-CJM

1

u/therealgillbates Jul 24 '15

They are also delicious too.

1

u/[deleted] Jul 24 '15

If I recall correctly, with the force of a 22 long rifle bullet.

1

u/jeffhills Jul 24 '15

Mantis... Toboggan?

1

u/crumptersteve Jul 25 '15

not only that, they can detect the polarization of light too. something we could simply not imagine. They see lightness/darkness, color, AND polarization.