Mantis Shrimp Punch at 40,000 fps! - Cavitation Physics 

Additional fun fact about the mantis shrimp: We have 3 kinds of photoreceptors in our eyes (blue, red, and green). It's how we're able to see all of the incredible colors displayed in everything from sunsets to, well, mantis shrimp. But these little guys have *16* kinds of photoreceptor cells in their eyes. And we have absolutely no idea why they would ever need that many.

one punch shrimp

"Water moves out of the way so fast that little vacuum bubbles are formed, called cavitation bubbles. These bubbles collapse immediately, and the force of that collapse creates a second shockwave and even generates light and heat. That's some Mortal Combat finishing move s#!t right there!" - True Facts About The Mantis Shrimp

Oh, so that is how a mantis shrimp do

"They come in all different sizes...." Me: Profusely sweating

Since no one has commented this yet: ONE PUNCHHHH!!

So they're like the colorful little Hulks of the sea, so savage and cool

This has to be my favorite animal. Such an awesome vid!

I hope all the mantis shrimp shown in this video are still doing well.

Dr. Furby is hilarious! She needs to be on your show more often :)

I like that this is so much more specific, and has primary sources discussing the subject. It's great.

Deep Look + Physics Girl = Mind Blown

"To a mantis shrimp, Kung Fu looks like Tai Chi." ~ ZeFrank

I love these guys! In the bio-mechanics fields, people are actually studying the structure of their clubs to produce super strong composite materials for construction purposes. It´s amazing how nature can produce such fascinating things! Great video =)

Not only are these shrimp extremely powerful but they are true wonders of the world. They happen to have 12 different color cones in their eyes. We have 3. Imagine all of the colors that they can see

So these shrimps have a... smash mouth?

i miss the days when youtube videos just shows what's in the title immediately

Project Power brought me here!!!

We were taught many biological sounds at Fleet Sonar School early in 1973 by listening to many different recordings. The snapping shrimp made their sound by "clicking" their thumb against their "hand" like a castanet. This didn't seem right so I asked how a soft crustacean shell could produce such a loud source level like that. The instructors said they weren't really sure but somehow the results were real that they could produce a LOUD noise. This little tidbit of knowledge rattled around in my head until about 2005ish when I saw a video about the mechanics of the noise they produce and I was amazed at the simple physics involved. PS: on sonar large populations of snapping shrimp sound like frying bacon. I do not remember ever hearing mantis shrimp though. It still amazes me that people have trouble understanding that water boils because of vapor pressure not heat. Also I'm surprised that the graph showing the sound of the mantis shrimp cavitation "bubble" only makes one sound instead of multiple rebounds that reduce in amplitude with each rebound. You are correct about the Here is the link to the video that gave me the answer I was looking for: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Zg10Et8FEWc.html

Physics Girl talks about a ZeFrank video while wearing a Deep Look shirt. Awesome.

I was surprised they didn't mention the OTHER unique feature about the mantis shrimp, it's incredible eyesight. That species literally has the BEST and most complex set of eyes of any organism that we've ever discovered on this planet. Seriously, their eyes are amazing advanced.

Dianna, continued prayers for you to get better soon! God bless you!

Proceeds to do impression of mantis shrimp. *Hits hands on desk, causes non-literal vacuum bubble, breaks knuckles*

I was expectcing that she punches something at 05:22 and after you could add an explosion! :D

If you want to stick with more "Cavitation Physics" and "shrimps", then the next one on the list is the pistol/snapping shrimps. The pistol shrimp creates cavitation bubbles by snapping their specialized claws shut rather than a by product of the mantis shrimp's "punch."

i was expecting lot of shrimp PUNchs on this video

This channel has grown SO fast! ;)

What's even More Awesome is that when the Mantis Shrimp snaps, after the cavitation and the snap sometimes there's a little flash of light! :D This phenomenon, called SonoLuminescence, is still a mistery of physics (minutephysics did a video about this a long time ago).

Oh Physics Girl, don’t you know biology is messy? Physics so clean and precise. Great video. Thx.

The Mantis Shrimp is my favorite animal!!! So glad you made a video about it!

Provided the shrimp is put in a glass tank, can the shrimp brake it by punching it? Similar, if you have an aquarium with shrimp and you decide to put your hand in the water and pick the shrimp with your hand, will that put you in danger of the shrimp breaking your fingers?

"200 pounds of force!" *graph of force clearly in newtons*

Confession - I do appreciate the attempt to teach Jim something new, but I preferred watching you and Kate's excitement and enjoyment in explaining about the Mantis Shrimp Guy's Punch. I may never pass a test here, but I will have perfect attendance and hopefully get an A for effort. Stay Awesome : )

Why did you have to go black and white for only 20K fps? I have seen color footage at over 100k fps. Love your Videos!!!

Wait, did we get an answer to the question in your description box? "How is physics preventing them from being any faster?"

Correction : water evaporates very fast when it is kept in vacuum (but it is not said to be boiling, because temperature do not increase)

Best mantis shrimp video I've seen.

Doomguy: *has plasma cannon* Shrimp: *has plasma fist*

“Tiny," Sanya rumbled to Michael, clenching a demonstrative fist. "But fierce.”

Loved the intersection of physics and marine biology. More science mash-ups please!

2:50 when mantis hits the snail. I know they want me to understand how violent and aggressive the shrimp is but uhh I was cracking up when he hit that snail. His eyes looked like they crossed and it just looked like its got Palsy strength in one claw.

SO COOL! Thanks for sharing! I knew mantis shrimp were awesome, but a punch so fast it *boils water*!? :O

This channel is so awesome and keeps introducing me to other awesome channels. Keep PBS funded!

The mantis shrimp is a very underrated animal, it’s the first irl fighting type pokemon

Whose here after getting that video of that one dude getting punched through his shoe randomly in their recommended lol

Cocktail sauce doesnt care about how fast any shrimp is...)

Finally... thank you Physics Girls for clarifying the mantis shrimp and 22 cal bullets. I've seen documentaries claiming speed, force, energy, etc are equal, which clearly cannot be. Acceleration makes total sense. Well done..!

conn sonar, we're cavitating!

I'm confused with the units in this video. For instance, Diana says that the Mantis Shrimp is capable of a punch of 200 pounds of "force" (91 Kg), but the plot shows a peak force of 200 Newtons. On Earth, a person with a mass of 91 Kg exerts 890 Newtons of force on the ground.

Imagine getting hit in the leg in like knee deep water and it breaking your leg

Apparently, 4 people have angered a mantis shrimp, and has flashbacks

Kate IS a total rockstar ... amazing video as usuall !

Mantis shrimp can see in a whole BONCH of spectrums.

This video is perfect to teach my students the difference between speed, acceleration and force. Amazing.

Awesome video! Destin from Smarter Every Day covered this subject but, obviously, the more science videos the better.

Hi Diana, just watched your video, loved it. check out the pistol shrimp... it causes cavitation just by closing its claw super fast, to knock out small fish and crustaceans without even touching them. love your videos!!

Any species that learns that it can defend itself learns to hunt and by natural order becomes territorial. (C)

cool

Mantis shrimp and pistol shrimp are both very awesome.

You made a professional marine biologist give you her best impression of a shrimp. Scientists are great.

"Pull it together, y'all!" 2:42 :D :D :D

I can not believe you passed up the opportunity to mention Einstein's most famous equation. The energy of that punch must be off the charts due to the velocity

I had a reef tank and a mantis shrimp hitchhiked in on the live rock I purchased. I've had many different critters in my life, but Manty (named by my daughters) is by far my favorite. I used hemostats to feed him chunks of frozen white shrimp a few times a day. The only thing he smashed in the tank was tunnels through the rock, I assume because I kept him well fed. My girls were enthralled with him. I could ALWAYS entice him to come out of his tunnel to eat. He was hysterical, we would see his eyes poke out, then he would come out and fetch his meal. Wish I could get another one, but they are difficult to come by.

Bro is literally overpowered for no reason

when we were kids my mom would fill the syringe with water pull the plunger out and the water would boil. so cool!

These shrimp are amazing! Each of their eyeballs has three holes, a trinocular eyeball. And they have two of them, sexnocular vision... dirty science :P

That answered every lingering question I had on my recent Mantis Shrimp discovery and subsequent binge

Mantis shrimps are one of the best things alive.

SHES BACK

Rumor has it Bruce Lee learned his 1 inch punch from Sensei Mantis Shrimp

Chicks that science, I dig this video. 👏 Never stop making these.

They had a tv special about this shrimp recently! They make a sonic boom cavitation punch!!

Thanks for making wonderful videos!

mantis shrimp are awesome. from their powerful punch to their perfect eyes and their tolerance of high heat.

I was just wondering about cavitation last night. I was fishing and a boat passed by and I heard the prop cavitating. It got me thinking about what happens during the process. Coincidence!

ONE PUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUNNNNNNNNNNNNNNNNNNNNNNNNNNCH!

"So, why are these animals so aggressive?" _YOU KNOW IT'S HARD OUT HERE FOR A SHRIMP..._

Project Power brought me here!.

I choose you Mantis Shrimp! Bubble beam attack!!

The fury at 2:42! I love it! Get your physics terms right people!

Dr. Kate Furby likeability factor: Over 9000

I'm glad I've discovered your channel! You're amazing. :)

you combined smarter everyday and slowmo guys in one video

Mantis shrimp are the heroes of a short story titled "Smasher" that is set in Saberhagen's Berserker universe. It's a fun read & I highly recommend it!

If you haven't listened to it already yet, the Freakonomics Podcast did a really interesting episode on funding into things like the Mantis shrimp. Well worth a listen.

Cavitation is also the principle used in ultrasonic cleaning.

Those eyes are so fascinating man.

nice physics teacher

Deep Look is awesome

The sound is created by the bubble that is formed from the impact and then popping due to heat and pressure. So it would be impossible to hear a difference in his clubs because the sounds isn't coming from his club.

2:25 my face when I study organic chemistry

Never seen that before, Liked

There's a awesome episode of radiolab about this

i wish my computer can handle that amount of fps

They taste even better than they can punch

I get excited whenever Physics Girl uploads a new video! Also I LOVE Deep Look !!

Ahhhhhhh! Wonderful video! Keep it up!

Why is everyone in this video a solid 9.5/10

They also have the most powerful eyes!

My favourite animal. PERIOD.