Frickin’ LASER BEAM Shark Science

Frickin’ LASER BEAM Shark Science

(evil, maniacal laughter) – Clearly, Mr. Hill, you’re in deep now. (grunting)
(crinkling) As you can see, I’ve recently
upgraded my lovelies, my sharks now have fricking laser beams attached to their heads. – You’ll never get away
with this, Man Bun! I’ll make sure… Wait, what kind of lasers are
you using for those sharks? Because, you know,
depending on what you use it could make a big difference. – Well, I guess I didn’t
really think about that. I just thought that you would have some– – Let’s get technical. – Hey, no, I’m the one
with the man bun here, I’m in charge, wait! (funky electronic music)
(beeping) (grunting)
(snapping) – Ever since a one Dr.
Evil came up with the idea in the first “Austin Powers” film, sharks with fricking laser
beams attached to their heads have become a classic supervillain scheme. This is a ridiculous scheme, sure, but if we were supervillains,
which we’re not, how would you go about making
laser-sharks a reality? What kind of beam would you use? What would the sharks actually do? What range would they have? Let’s try our hands at
some evil engineering. (evil laughter) Not shaving my head, though! First, what is a “laser?” Well, simply put, a “laser”
is a device that emits light, but light with very specific properties. Most of the radiation
that lights up your life looks like this, it’s all over the place, amplitude, spacings,
wavelengths are all jumbled up. But not imagine I put all this light through a small aperture
in something like a wall. Then all the light will
start coming through with a certain spacing. If we go one step further and we add a wavelength filter in
front of this light, the light that comes out the other side will be of the same spacing and wavelength and amplitude, it will all look the same, and we call this coherent light. Laser light is coherent, and it’s why you can focus lasers
down to such small points and why, instead of a jumble, you can produce single
colors of groovy light. Baby. I guess? Laser light, like radiation in general, behaves differently depending on what medium it is moving through. For example, take your
standard microwave oven. Inside of this science box, (beeps) microwaves are being shot into the air and into the food that you
put into the microwave. But the water in that
food more readily absorbs the microwaves than the air does, which ends up depositing
energy into the food and heating it up more so than the air and this cooks your food. Similarly, laser light
(electronic whirring) moves a lot differently
(laser firing) through the air than it does through water and this will determine what kind of laser we actually want to put on our
fricking laser-sharks’ heads. (beeping) Oh, my pizza rolls are done! (sizzling)
Ow, ow! Gotta get it. Mmm.
(swallowing) We actually – oh, wow, that’s good. We actually have a pretty good idea on how all electromagnetic
radiation moves through water. Look at this graph here. Increasing y values means increasing absorption of radiation in water. Increasing x values
mean longer wavelengths. As you can see, water
absorbs and is really good at absorbing pretty much
every form of radiation aside from visible light. And if you look even more closelier, it absorbs bluish greenish light the least and more the reddish light the most. If you’ve ever wondered why
our oceans are a faint blue, this is the reason. Water just so happens to less absorb and scatter blue light and
absorb more reddish light. Of course, if this graph was shifted, if the universe was different, then our oceans could
be yellow or even red. (splashing)
He likes pizza rolls. But who doesn’t? Because of what light
travels best through water, we know have our first
supervillain suggestion. The optimal colored
laser to put on a shark is not the traditional red, but a blue-green laser in
this range of wavelengths. But how good would this be as a weapon? One of the advantages of
laser weapons generally and presumably laser-sharks specifically would be an ability to hit a target
(laser firing) almost instantaneously from range, as lasers travel at light speed. However, molecularly speaking,
water is a lot of stuff very close together, at least closer than the molecules in air are together, and so in water, lasers
have a greater tendency to scatter and diverge to
the point of harmlessness. Therefore, laser-sharks would
have a serious range problem and I can prove that to you. So here I have a Science
Tube filled with fresh water. I also have a green and
a red laser pointer. What we are going to do is check laser propagation
of these wavelengths through our fresh water. Safety goggles on. (snaps) Here is the red laser pointer first. (intense electronic music) And now the green laser pointer. (intense electronic music) As you can see, both laser beams have very little trouble moving
through this fresh water. You can hardly see the
beams themselves at all. But if we’re talking about laser-sharks, almost no sharks exist in fresh water. The vast majority of
them live in the oceans and ocean water is very different in that it’s very salty and there’s a lot of stuff floating in it. You know, like fish poop. So let’s try to replicate that. (snaps) For this exact volume of fresh water, I’m going to add an
exact amount of sea salt to give this fresh water the
same salinity as ocean water. (salt slides along paper) I’m also gonna add some
pepper, salt and pepper, just as some random debris. (stirring) Okay, so now the red laser
beam in the salty water. As you can see, it is a lot brighter as the beam is scattering
and being attenuated much more so than in the fresh water. And now for the green laser. Again, as you can see,
you can see the beam a lot better as it’s being
scattered by the salt water and the random pepper
debris that we put in there. But the point being that
you can see the beam a lot more than you could before. In realistic conditions then, sharks with fricking laser
beams attached to their heads are gonna have a serious range problem as salty water filled with
random debris and sea life hamper weapon effectiveness. Safety glasses off.
(screaming) Oh, stop, that was through
the air, there was no– But just how much of a problem would laser range in water be? We can calculate the attenuation or diminishing of laser light through something like water
using the Beer-Lambert Law here which calculates the probability of finding some particle like a photon some distance into a material depending on the wavelength. To get an idea of the danger
range for our laser-sharks then we need some real values, and I found some in a military paper about the underwater applications of laser weapons. I’m on a watch list. A blue-green laser
traveling through sea water will lose up to 50% of its power after traveling just 10
meters, or around 30 feet. This is a huge energy loss, especially considering that
a laser fired through the air can travel basically
unimpeded for kilometers. So, even with extremely powerful
lasers attached to them, our laser-sharks are probably going to be short range dangers, maybe
under 100 meters or so. (electronic whirring) So we have a blue-green,
short range laser-shark. There’s only one thing left to figure out. What we want the shark to actually do. (splashing) Of course, I know what a supervillain wants to do with laser-sharks, they wanna “pew pew” stuff. But again, that’s a problem underwater. Lasers damage stuff by
depositing a lot of energy in a very small space,
heating up those spaces to the point of destruction. But the same thing can happen to water that a laser is traveling through. So imagine a high-powered
(laser firing) laser pulse creating a
small, vaporized bubble of steam because there’s
so much energy there. This bubble of steam can then act to stop the propagation
of other laser pulses through that same water. It’s kind of like trying to shine a flashlight through a cloud. This is called thermal bloom, and it’s one of the big reasons why underwater laser weapons
aren’t really a thing. There are powerful laser cutters that do work underwater, of course, and if you attached one
of these to a shark, it would make it deadlier, but again, like we said,
these have very small ranges, and at that point, if you
encountered a laser-shark, you’re probably close enough to already be eaten by a laser-shark. My point being, all of this
wouldn’t be the “pew pew” that a supervillain would expect. But don’t worry, I have some other ideas. (splashing) The first alternative scheme is something we often
forget lasers can easily do. The beam strength needed to blind someone is far less than the beam strength needed to put a laser weapon-like hole in them. So now, let’s consider a laser-shark equipped with an evil
eye targeting system. Then all it would take is
a relatively low strength, short range, blue-green
laser and that could (laser firing)
blind targets before they were chomped by said shark and being blinded underwater sounds like sounds like an absolute nightmare. Here we go. And we already have technology that could do something like this, if we were being, ooh, evil. This is the StingRay Laser System. What you’re watching it do is use AI technology to identify parasites on the surface
of farm-grown salmon. It then shoots a blue-green laser at those parasites to vaporize them, and it’s doing so with high accuracy. Now, all we would have to do
if we were being supervillains which we’re not is strap one of these
to the back of a shark and recalibrate it so it’s not identifying salmon parasites but human eyes and this technology already recognizes salmon eyes with 99% accuracy, so I guess that wouldn’t be so hard. Hey, that’s pretty good! Another laser-shark tactic
might be even scarier: communication. Right now, militaries around
the world are experimenting with underwater
communication using lasers. Blue-green laser pulses
to send information between underwater
objects like submarines. Now, this would take some
supervillain technology and some super intelligent sharks, but just imagine for a second a shiver of sharks,
(splashing) that’s what they’re called, using laser beams to
communicate between each other and coordinate attacks on targets. This is terrifying and the final scheme that I had to offer. Okay, Man Bun, get me outta here. (splashing) Get me, get me outta here! (whining)
No! – Hmm, what a pity. Another adversary wasted. Well, I guess we did learn
something though, today. Didn’t you and I? If we were to use laser-sharks, we’d want to use a blue-green “laser” and train our sharks either to communicate or engage in short-range zapping. It’s a more realistic death trap that doesn’t even require a whole lot of lengthy explanation from me that gives the hero time to get away. Ha, all I would have to say is “Because science?” (evil, maniacal laughing) (funky electronic music) – What we left out of
this discussion was power. For a laser weapon to even be affective, you would need something very high power, many, many watts so it
could travel through the water effectively,
actually do damage to targets if that’s what you want it to do. It would be so high,
perhaps, one million watts. No, but seriously. (bouncy electronic music) (writing)
(papers shuffling)

100 thoughts on “Frickin’ LASER BEAM Shark Science

  1. Speaking of lasers, if star wars blasters use lasers, what would the "weight of light" be to make them as effective at knocking people over as they are.

  2. My 5 year old Adam pointed out that at min 6:13 when you got laserred in the eyes you where wearing safty goggles so why did you get hurt?

  3. I watch a lot of your videos (long time listener first time caller type shiz) and I have recently been thinking, which is a dangerous prospect in and of itself. Hypothetically speaking, how much Neutron Star material would equal roughly 1 earth gravity, and would it be possible, feasible, or prudent to simply construct an artificial research station around that central mass in order to more closely study Neutron Stars and their properties? 100% layman shower thought there.

    kyle I'm disappointed
    As you said the VAST majority of shark live in salt water but wouldn't a supervillain be more inclined to use something as B.A. as a bull shark, which just happens to be the most notorious fresh water dwelling, in something like this. Especially when accounting for the fact that they would have to use fresh water as you have shown???

  5. This reminds me of the laser being designed to shoot off the wings of mosquitos as they fly. I seriously love technology like this.

  6. Hey Kyle, you should check out an anime called Dr Stone, maybe do an episode on the show's premise. How long could people last against the elements if they all suddenly turned to stone?

  7. Good kyle is in the void because evil kyle put him there making him perform so he can collect the ad revenue for his evil budget.

  8. Oh neat a laser special. I'm curious if you've considered talking with "StyroPyro" who is a youtuber who frequently does experiments with lasers

  9. That was not salt. Not 100% salt, it has additive that makes salt not stick together and also makes water less transparent. salt-water solution is transparent.

  10. With regards to sharks communicating by laser light, Humboldt squid already do this – they use their chromatophores to flash red and white, which is why they're called "red devils" by fishermen

  11. wait didn't world of Warcraft have a T-rex with a Laser beam on a shark? this was years ago.
    ok I have a question how much do superman weight? I hear that his atoms are so close together that he is invincible and his body temperature is 40c

  12. Im out, I have waved my hand at all the stuff you have pulled off in the void… but a microwave that turns into a graph! you sir have gone to far!

  13. Wait a minute….

    That Dr. Man-Bun-Guy and Kyle look quite similar….

    What if: one of them is just a pre-recorded message made by the other in order to hide that Kyle actually IS a super-villian!!

    Has anyone ever seen both of them in the same room at the same time?
    Has anyone proof that they are not the same person?
    Has anyone eve-aarghahahahghgahghagh (death by frickin´ laser shark noises)

  14. Power wouldn’t be an issue. Just hook up a water turbine on the shark’s back. Their need to never stop swimming would guarantee all the juice the death-ray could want!

  15. you can see the green beam a lot better as its being scattered by the salt water?? is compering that even correct, if i recall correctly human eye is more receptive to the green side of the visible light spectrum more than the red side. that's why when you have a source of red and green light emitting the "same amount" of light measured in whatever way the green one seems to be brighter. love the show.

  16. yeah, good luck attaching enough batteries to operate a high power laser on a shark, otherwise you'd have to keep 'em plugged into the wall and that's not efficient.

  17. with each episode I'm more and more convinced that Kyle has some big secret he's not telling us. like a super-villan twin or sth. wink wink

  18. Unfortunately I'm late to the comment section, because on Thursday I was busy eating Dinosaur. But there was a "documentary" on Discovery channel a few years back that evolved animals into the future. And one of the animals they evolved was the Blue shark. It was speculated that in a few million years they'd evolve skin along their flanks that would glow (bioluminescent) and flash patterns for them to communicate.

  19. Arbitrary thought 2501 what if the Panama canal failed and the two oceans merge? How would all the sharks feel about?

  20. I always thought he wanted the laser-sharks to shoot with lasers from the water for example at some guy standing at the edge of water somewhere, or near a beach or in a boat.

  21. I recently saw a video from seekers talking about solidified light, they shot a beam of light into an ultra cold clod of rubidium and noticed that that photons coming out formed pairs of two and three. Could chaining light together into a solid form be a step closer to creating a lightsaber? Lol

  22. Speaking about ocean water… If rivers are continuously emptying into the ocean, but the sea level stays constant due to evaporation, shouldn’t the ocean be getting continuously saltier? Wouldn’t that affect all of sea biology?

  23. Like I said on the other veido, you wouldn't need power if you used a chemical laser. You could probably only fit enough on a shark for one or two shots before the chemical stores would need re-filled, but that would solve the power problem. It still leaves the problem of water evaporating, and the steam possibly killing the shark.

  24. If you had a powerful laser, would it possible that it would heat the water around the sharks face enough to burn it or harm it making the laser sharks completely useless?

  25. Hey Kyle, two things. Sharks could quickly surface to blast unsuspecting heroes off the deck of the super boat, bypassing the beam through water. They could also use the laser cutter to cut holes in the hull of said boat to sink it. Love the show. Manbun 2020

  26. Hey Dr. Manbun. A. Your Manbun is frickin' EVIL. B. If you were looking for an underwater weapon to be used in a combat situation, perhaps a Microwave Emitter would be your best bet? The only concern would be that it might also heat up the water *right in front of the shark*, but, you can't make an omelette without cooking a few …. sharks? I think my metaphor game is waterlogged.

    Here's a wiki on the current state of that type of weaponry, so very little tweaking would be necessary!

    Anyway, happy Kyle hunting, apparently there's lots out there!

  27. What about aquatic mammals or amphibians that could surface then attack?
    Another option that I will bebunk myself, is doing something like starlink underwater with animals. but you would have to have a enough population under your control in a big enough area to make it feasible.

  28. But aren't the lazers meant for the targets outside of the water, where sharks can't reach? Because inside the water, they could just use their own mouths.

  29. I have a question, if the high powered laser under water creates a steam bubble wouldn’t that steam bubble collapse and create a shockwave something a kin to how a pistol mantis shrimp does its thing? If so could that not be another indirect way of using a laser shark?

  30. Me when Kyle shines red lazer in water: oh my god…

    Me when Kyle shines green lazer in water: waaaaaaAAAAAAAAAHHHHHHHHH

  31. I still want a fricken shark with a fricken laser beam attached to his fricken head..

    I sense an awesome Jaws rewrite but with multiple sharks & fricken laser beams attached to their fricken heads. I mean, they can just take my money at that point.. using laser beams to communicate & eat everyone swimming at a beach. Best horror flick ever! I'd watch it as long as it's based on good science. Which Hollywood sucks at.. I'd be skeptical but I'd probably watch an Austin Powers vs a scientifically correct laser shark confrontation. Get on it Michael Myers. Reboot the Austin Powers trilogy!

  32. Kyle! This isn't about the shark. But! My friends and I have been arguing about this for a couple days. For me, I usually use you as reference points when we argue, (we argue about science stuff a lot, since we talk about how can certain superpowers work and how are achieved, etc etc.) My friends use other people. The question we have been asking is "What color is antimatter?" We have two choices we think which are Opposite of the color that the antimatter is "mimicking" or its white or black or white and black.

  33. Hey Kyle, big fan of the show. My question is, could a planet sustain life with only two seasons, I.E. Winter and summer in GoT, and if so how would that affect the biology of the planet.

  34. In reference to lasers and light, would it be possible to create "HARD LIGHT", more formally identified as a boson-photon field, is a HALO Forerunner technology that allows light to be transformed into a solid-state, capable of bearing weight, creating light bridges and performing a variety of tasks?

  35. Hello Kyle!

    Keep making me learn, I hope you do. On a point of clarification, as a friend of mine says, saying "more closelier' is bad English.

    Also, the way things seem to be going, you might need a "Because Evil" channel soon with all these recent topics you've been covering, IF you were evil anyway. Heh heh.

  36. Hey Kyle
    in the Wonder Woman video, you said that if not blocked accurately then there could be shrapnel flying around and I was wondering if that applies to Cap's shield since even though it has a larger surface area the circular shapes are similar?
    Also, Kyle, you said pointed out that to superman the world would be like cardboard in the superstrength video, and I was wondering if it also applied to other supernaturals who are known for their gracefulness, deliberation and carefulness so it's said that they don't need to be overly careful because they made that way because of their supernatural nature.

    Love the videos

  37. La-ser….SHARK pew pew pew pew pew pew laser shark pew pew pew pew pew pew laser shark pew pew pew pew pew pew laser shark.

  38. hehehe. Beer.
    But. What if you 'ooomphed' the amps?
    Also afaik we use semi reflective ruby to focus the light? (probably wrong, but I don't have anyone to ask anymore)

  39. Ah but Kyle you have forgotten that bull sharks, a species of shark that can live in fresh water, would be more ideal to be your minion as they are incredibly agresive and will be more likely to attack enemies than the majority of other sharks.

  40. Hey Kyle. I watched the episode of Bill Nye Saves the World you were on and was wondering. If cell phones, TV's, etc. emit blue light which signals our bodies to stay awake why do some people fall asleep watching them? Are they just plain tired or is there another reason?

  41. When he talks on his evil err I mean normal phone is it a dial tone? I dont see him ever dial a number so if this is the case i commend you on your focus while there is a dial tone blaring in your ear…bravo…bravo…

  42. [email protected] Sharks using lasers to coordinate attacks. Use a low powered laser and a camera + motorized targeting system. Condition the sharks to attack/bite whatever the laser points. Centralize control and voila – comparatively low tech and achievable laser guided sharks.

  43. Hello Kyle I actually took some time thinking about this since the first watch. Would tigers or lions with lasers work better. I mean the laser can just blind the person and since cats like laser pointers they charge them the minute they see the laser

  44. BUT, I presumed sharks with freakin laser beams attached to their head was to add to their usefulness of an evil genius
    a) Sharks already have the innate danger in the water
    b) Laser could take out submarine and ships by cutting holes with their laser
    c) Anyone that was try to escape a shark tank to avoid being killed (thinking outside of water they would be safe) would be pew-pewed by the shark pointing the laser at a man of mystery sitting on top of a tank thinking he was safe and out of reach

  45. Kyle please give us the episode number for this video. We need it for canonical purposes; the first appearance of MANBUN!

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