Can I Program a Robot to Swim Faster Than a Human?

[@shaymin7240]

10:04 this editor goes to above and beyond for us to understand no wonder he got hired

[@BatroSkywatcher]

Also brought back a joke from the most recent breaking sound barrier video

[@SuprSBG]

Perhapskis :D

[@unything2696]

Perhapskis. Someone put it on urban dictionary, so it's never going away.

[@FlyingNoodle554]

@@unything2696🙏 Wdgendary

[@mbk337]

And 19:22 as well. Pretty incredible, really

[@edgemike3601]

As a swimmer, you can try to improve it by doing a common rule for beginners swimming freestyle is 'high elbow' to distinguish it from backstroke. High elbow means the elbow is the highest part of the body once the arm is out the water. You almost got it when you put a servo on the elbow, but the angle isn't high enough. If I show the final product swimming to some of my friends from my swimming club, I think they would say it's backstroke. Update: 4 of my 5 friends said backstroke, the other one said freestyle.

[@faremir]

Or just throw great white shark to the pool...

[@locke_ytb]

Swimming Fun Fact: The breaststroke is the oldest recorded* swimming stroke, dating back to the Stone Age. Depictions of the breaststroke can be found in ancient Egyptian hieroglyphics.

[@distracted...]

not to doubt your fact, but its not necessarily the oldest swimming stroke just because its the oldest *recorded* swimming stroke. humans have been swimming for as long as there have been humans, and our evolutionary ancestors no doubt also had a way of swimming. so technically its the oldest recorded swimming stroke and we dont know any more than that

[@locke_ytb]

@@distracted... yes, of course. i agree edit: there, i have modified it.

[@kaykyhardy6205]

10:04 bro give a rise to the editor man!!! He search the topic, tells us what ScrapMan got wrong, EDITS THE VIDEO IN A WAY THAT IS REALLY GOOD, and animates!!!! This man is not a editor, its an angel! Pls ScrapMan, preserve this man. This man needs protection.

[@adammullarkey4996]

Freestyle is an Olympic swimming event in which the swimmers can use any swimming style, so they all choose front crawl because it's the fastest.

[@ithalathegayguy]

Lol, that's hilarious. The isekai weeb in me just wants to see some rando show up with whatever stroke is considered the slowest (complete guess: Butterfly?) and just dominate.

[@KidarWolf]

@@ithalathegayguy Actually butterfly is quite rapid compared to breast stroke. I think while Scrapman was scrolling that website, the section on breast stroke called it the slowest swimming stroke.

[@blikiso]

Faetest is freestyle slowest is breaststroke

[@adammullarkey4996]

I feel like sculling must be slower than breaststroke.

[@SuperMarioOddity]

@@blikiso you clearly havent seen the nonsense stroke i made up when i was 9

[@vaulz_]

10:04 the fact the editor used perhapskis is hilarious

[@jackfinnie6603]

The editing in this is amazing

[@Joshua-b6k4c]

yeah

[@flyingfox8360]

Combat side stroke actually has been tested, energy output in high preforming professionals is easily repeatable as it is trained daily. When i was screening for special warfare when i was in the navy i would swim for close to an hour a day. 15 mins front crawl, 15 mins breast stroke, 15 mins combat side stroke, 15 mins back stroke. That order is to maintain energy while continuing to swim as i got tired. By the time I was set to screen i was an absolute fish and was putting down crazy fast times with a standard side stroke as well as combat side stroke. The science is real my dude.

[@Hyper_Fox06]

Yes research was done by DARPA and a university but I forget which one. I had the privilege to see a lot of interesting things at the Naval Surface Weapons research center and from a group of physicists at a university that collaborated with my agency for data analytics on something about 10 years ago

[@markjacobson4248]

Technically the style used in freestyle is called the forward crawl. Freestyle is a reference to the event, where there is no limitations on swimming style. It's just that the forward crawl is really fast, so freestyle winds up being forward crawl.

[@feldamar2]

Now the editor is perhapskis getting in on making that word a thing. Yay!

[@GamePhysics]

This is so surreal.. I've been saying "ski" and "skis" at the end of random words for months now and I even infected my friends with it too.. Now imagine my surprise when I saw it the other day in scrapman's comment section...

[@ivan-ky9mk]

​@@GamePhysics Scrapman said it in the last SonicBoom vid, and wondered about it himself. He said, that it shouldn't become a word, which means, that it immediately did.

[@GummieI]

@@ivan-ky9mk Yeah the moment he said that, is basically the moment it got guaranteed to become a thing :D

[@jadesaber99]

Nobody says don't make it a thing unless they want to actually make it a thing

[@GamePhysics]

@@ivan-ky9mk which sonic boom video was it?

[@im.not_kzkz]

multiplayer idea: kinda late 1-Minute, 10-Minute, 30-Minute Dogfight or Race - You have 1 minute to build your initial vehicle. - After that, you get 10 minutes to upgrade your build. - Finally, you have 30 minutes for a final upgrade. Unlike evolution where you upgrade the winning build, in this format, you have to upgrade your own build throughout the stages.

[@Loop_Kat]

The annoying thing with toggles is that, as you saw near the end, they must be re-toggled _off_ if you want them to be re-triggered again So, for anyone who's curious, to make a logic block toggle automatically, you can do it really easily with just two logic blocks (using XOR gates as an example): *1)* Set an XOR gate to toggle and set the _duration_ to be 1.10. In this example, the desired duration is 1.00 + a small reaction window (0.10) for the second XOR gate to trigger *2)* Create second XOR gate and set the _delay_ to 1.00. This delay _must_ be _lower_ than the first gate's _duration_ or else it won't trigger *3)* Point _both_ XOR gates _at each other_ and use only the _first_ XOR gate to send signals to _other_ blocks. Do not send any other signals to the second XOR block *4)* Trigger the _first_ XOR gate with either its own hotkey or from another incoming signal, it doesn't really matter, just don't send multiple signals to it or else you'll make a mess *5)* That's it. Whenever the first XOR gate is activated, the second XOR gate will automatically disable the toggle _just before_ the duration ends, thus allowing the system to reset itself and be ready for another signal every time (as long as you're not mashing keys) Using a 'reaction window' value faster than 0.10 _may_ work (ex: 0.5, 0.2, etc), but I found that 0.10 was the "safe" minimum value for the second XOR gate to trigger due to the logic speed limitations in Trailmakers. Additionally, the _second_ XOR gate does _not_ need any kind of pause or duration, its delay will _only_ be active when the _first_ XOR gate is active, so it's automatic, in that sense. This system is obviously limited to timers, but there's a lot you can do with it if that's all you need (ex: activate/deactivate a motion, fire multiple weapons with incremental delays, all while only using _one_ hotkey)

[@riccardopetrina4212]

That thumbnail is very impressive, looks so realistic. If robots ever threatened swimmers, that's the image on the front page of an article about it.

[@HannsenLCS]

the arms being so straight makes it look more like a backstroke. 🤣

[@Mercill_11]

Fr

[@null_data]

Other than the bend in the air, idk about you but my elbows don't bend that way

[@AleJ-oJo]

The editor putting perphaskis as a call back from a previous video got me dying laughing 😂

[@Wekuz11]

Amazing job editor! And perphapskis Scrapman is also awasome

[@yahiaswidan5114]

As a swimmer, when you said “breaststroke is much harder to program” I just thought “you have no idea”

[@Yesenn]

Thanks for trying out the idea! While you did do a different swimming motion, this was still cool to see. I suggested the breaststroke as it should be able to dive, unlike the freestroke which requires the arms to swing over the water. Also you pronouced my name correctly, which is pretty rare, lol

[@douglashanks4189]

I'd like to see someone program a doggy paddle bot

[@DocOctoganapus]

Freestyle is a free choice to do whatever you want. Everyone does the front crawl because it is the fastest way to swim. And good job editor on the hip knee ankle! It does act like a whip,

[@Sjors_23]

Here is an idea for future multiplayer Monday. How about forklifts? Make a forklift and who can move 3 pallets (one at the time) across racetrack fastest wins. It has to have at least 3 wheels tho. One will have to consider the change in weight balance and speed. If you think this good idea like the comment people. As always love the content!

[@mossie7920]

2:53 i love you got some of the same suggestions for videos. Magnus Midtbø and Eddie Hall, music production and your own video. Always fun to see what interests youtubers outside content creation.

[@Silverwing2112]

Scrapman: I'm gonna stop saying "perhapskis" it is not a word. His editor: Hold my beer.

[@Xmar4]

I love watching these videos because I love seeing how Scrapman figures these things out. But I am also LOVING the little animations

[@LoPhatKao]

2:55 love how one of the recommended videos on endscreen is a Scrapman video

[@SamanthaBender-o3t]

As a swimmer who also loves trailmakers I can assure you that this was entertaining

[@Verloren167]

We have to see the ultimate combat ready robot for the next episode, IE a combat sidestroke swimmer!

[@zainkhan8246]

You got such a good editor who seems like he actually enjoys editing your videos 👍

[@blue-cloud-studios]

perhapskis you can do the other strokes as well also your editor is the goat fr

[@rosubogdan7876]

Whenever you make a creation w realistic movements, a good tip is to only have the base joint be active and the rest have no input and just mess w the strength. This works great for wings and probably also for your legs because with the right strength settings the water resistance pushes on the servos and gets them in the right position to get a lot more speed woth out any fancy programming

[@rycudas]

Once again saluting your editor. Just so good.

[@tombroad9239]

He pretty much got there when he added the altitude sensors to the arms, but their motion would benefit a lot from some more advanced programming/tuning. The elbow should bend sharply when leaving/above the water, and then extend forward, just below horizontal, as it enters the water. The most significant change I can suggest would be adding a waist servo, between the upper and lower body. By timing it to twist back and forth in time with the kicking, it could accentuate the strokes. I don't know how much it would interfere with the upper body's rhythm, though...

[@CULLROY]

Really like the animations added in editing to show what it should look like. Great stuff 👍👍

[@BradenBernardini]

11:08 bro really had to put aerodynamics on a robot

[@Alezolt]

Build a synchronopter because you have done lots of other 'helicopters'.

[@ahbarpro]

after he said that he unintensially made him turn and be more controlable i thought he was gonna say "okay, where do we put weapons on it"

[@mahreycaine534]

6:59 to answer your question, in freestyle events, you can do any stroke but front crawl is the fastest and in the only one that is usually swum during the event

[@XaadeTheBlade]

From what I found, freestyle does mean choose what you want, but the crawl is the fastest, so that's what's chosen.

[@MochiTheGolden]

Best editor for keeping perhapskis

[@azdvcbfdsdbgcvb]

10:05 pherhapskis by the editor 🤣🤣🤣

[@ap0llo.0ne51]

I think the one clear reason why this robot’s head and torso was hovering above the water so much without gyro assistance is due to the fact that if you have the arms rotating in a circular motion, and plot its forward thrust and upwards thrust on a graph against time, one follows y = |sin x| and the other follows y = |cos x|. The magnitude of the forward and upwards thrust as equally strong, as in the arms spend an equal amount of time pushing up compared to pushing forward. If you actually want to swim fast, you need to maximise the amount of time your arms spend moving in the horizontal axis (in this case pulling backwards when in the water). You do this by orchestrating the movement of the shoulder joint, the elbow joint, and the wrist joint. Ideally, your elbow should always be out of the water and your wrist should be moving nearly horizontally as you pull back. Imagine a reciprocating piston like in a piston engine rotated 90°. The hand is moving back and forth, not around in a circle.

[@CosmicDragonGaming]

I've been watching Scraps videos for over a year now, I've always wanted Trail makers and tomorrow is the day in getting it. I'm so excited to test out the game and watch your videos to recreate some of your builds

[@Vessekx]

“In a speed test against a great white shark, Philips reached 8.8mph and only lost to the shark by 2 seconds (and one leg) after swimming 100m in 38.1 seconds. He retired from swimming shortly thereafter.” FTFY

[@yahiagaming7053]

You can make the servos have less strength which will make it more fluid and you need hands to help pull the water back it will really help 😊

[@KillerGuy]

The arms are not moving in the right way, what should happen is the arms should start at the front and then one of them does a full 360 deg rotation while the other one stays in the same place and when the rotation is almost finished the other arm should start rotating, basically one is stopped for a bit while the other moves

[@notonlyhuman6073]

The editor is going CRAZY!! Great stuff!!!!

[@AWSOMESNAKES]

Perhapskis if you used power couplers instead, it would be much more of a smooth motion.

[@nomurLethalmud]

In swimming competitions (at least where i'm from) the stroke you did is the breast crawl. Then you have the breast stroke, the back crawl and the back stroke and lastly the butterfly. Where with crawls you rotate your arms and stroke you do the frog legs. Freestyle are where races where you can do whatever so most people do the breast crawl because for most it's the most fast/efficient.

[@BatroSkywatcher]

10:04 perhapskis

[@scrap-godsuper-zo4740]

You should make a dummy that has all human joint ability for stuff like this so its just programming that’s different

[@JoshuaGanoTyraxLightning]

Now to complete the Swimming Robot for actual real... a Shark Fin on the top of the Head or on its Back. ;)

[@SpecialFX99]

I'm impressed! That looks a lot more natural than I expected

[@Plutoious]

We need a logic guide

[@christopherd.4389]

Freestyle is commonly associated as front crawl. However, freestyle is any style that is not breast, back, or butterfly stroke. You don't have to do front crawl to be freestyle. Also, with regards to the legs, the power comes from the hips and not from the knees.

[@CjbDesigns9]

In freestyle you can in fact do anything you want in competition swimming without getting disqualified however the “front crawl” is generally the fastest and most efficient stroke

[@soldjahboy]

I love the progression of the build, adding each joint until it all works... better and better :D I would wager that if you added the hip/torso twist, you could have made it even faster :D

[@Mercill_11]

It's called front crawl. In freestyle you can technically swim any style, front crawl is just the fastest.

[@ashtoncochon2021]

Hey did anyone else notice that scrapman made the elbows bend backwards .😁

[@MarginallyAddicted]

Not sure if this changes by the end of the video, but the 100% strength is just weird and probably slowing him down Edit: feet are too angled and need more delay and or lower speed

[@widowmakerx7]

I feel like you're missing scale in your equation. Sure its moving three times his speed, but its also 60ft tall.

[@barefootalien]

Haha! I say that too! "Flopping around like a dead fish." Love it!!

[@dragade101]

A simple way to turn, place joint between the arms and legs. Maybe at the waist. So when you press “a”, you are bending to the left a bit and pressing “d” will be a right bend.

[@apersunthathasaridiculousl1890]

“I don’t think the navy is gonna be hitting me up anytime soon” -Scrapman

[@SuprSBG]

Epic animation! Ty editor :D

[@andrewhonigford5999]

You should do a similar thing but instead of a persons swimming it should be animals like a dog

[@94ccf]

It would be interesting to see you and Yuzie try to rescue your robot. Either y'all could take turns as one of you pilots the robot and the other tries to rescue it or you could set it up to automatically swim.

[@LSFord]

I used to teach swim lessons and I’ve taught all these strokes. The combat side stroke I learned to help someone get in to the coast guard. It does work. The trudgen I also taught so it’s not classified lol.

[@vehiclesandtech]

3:13 scrap man being recommended his own video

[@found_it]

As someone who swam competitively, this was fun to watch

[@mightygreen3364]

For the arms, I think the hight sensor should have been at the elbow, as you dive your hand and arm into the water, you just dive the hand

[@Perhapskis]

Yes. The best day to learn about swimming and combat.

[@DanyF02]

Looking at 18:47 it looks like you're going faster when the straight arm is under water. Seems like it's because that one stays straight the whole time under water while the bent one has a smaller air profile outside the water but isn't as straight under water. After copying the new settings to the other side you were capping off around 20mph only instead. Your final design has the arms unbending fully almost 1/3rd of the way under water which is costing you a lot of pushing power. I'm sure you could get a lot of speed just by adjusting that a little.

[@lordsrednuas]

Freestyle is 'you can do anything' , it's just that the "Australian crawl" is so fast, that it'd be a bad idea not to use it in any competition.

[@flighttrain71]

Day 4: Perhabskis one person builds a plane with propulsion and has to pull a glider up into the air. After detaching in the air the plane with propulsion has to land on the glider. Idealy the glider lands on the aircraft carrier or island...

[@Zunip182]

When it comes to combat rules, they may sound weird, but really think about it. Man has been doing war longer than anything else. As a vet, everything i learned to adapt to combat i was especially happy to know what i needed to in order to keep my chances of staying alive higher.

[@SteffedPepper]

I don't think humans have been doing war longer than anything else. But I suppose we are good at it. Sadly.

[@MinilopBun]

Yeah, ants have a few million years on us. They don't have vehicles and guided minitions though.

[@WillGrout]

Video Idea: Racing evolution but biconical league and you only get an extra minigun for propulsion per round. Great Video

[@Pumpnineteen]

straight arm stroke is actually very inefficient (probably less important for a robot). For even more efficiency you would need a wrist joint too though, so you can push on the water properly

[@WilliamLDeRieuxIV]

You might want to tweak the arm motion to make it more realistic. People generally don't have a 360-degree range of motion at the shoulder joint, they can rotate their arm back to a certain point.

[@lemonaids7289]

YES YOU HAVE SEEN THE COMBAT SIDESTROKE! Ocarna of time Link also used the combat side stoke! Which is weird since he literally didn't have anyone teach him. He just hopped into water and found the most efficient way to swim all his own

[@KidarWolf]

I don't think it's that far-fetched. Messing about in pools, and wild-swimming, I landed on something very similar to the combat sidestroke as well, but didn't know something like that existed and had a name. Now I do, and I'm fascinated by that. I must admit though, my preferred style of swimming is actually butterfly without the arms, I just point my arms forward past my head, and then move my body in a sinuous pattern to swim, much more like a dolphin, whale, or seal, I find it relatively low effort.

[@KyryloHryhoriev]

Now make him break the sound barrier

[@FireHawk9463]

Guys, I didn’t make it to 30 days of staying up till 4:00am to comment on the latest scrapman post till he notices me😔 Side note: watching scrapman get recommended his own video is hilarious to me and I don’t know why😂

[@ZarekIhsan]

It’s actually called front crawl. Most people called it freestyle because they just don’t know that it’s actually called front crawl.

[@undeadhomie1001]

a robot that can swim in the air? like the same thing as here but possibly much faster movements, or making use of the cool trailing space rudder things. could be very pleasing to watch as it swam across the sky as if it was water

[@Ma6ic]

the editor created a 3d animation to show the movment?!? i saw people prasing him in the comments, but now i see it hes actually insane

[@Geninacra]

Not the first one. But need to express the work of the editor at 10:00. Well spent money.

[@KimberlyMartin-bg8ji]

Love your unique style, never change!

[@nilfe5528]

Video suggestion: Trying to break the sound barrier using no power cores and no glitches

[@jackharveysaunders1125]

Pretty sure freestyle got its name from a race category called freestyle which allowed free choice is swim style and most people chose crawl as it’s a fast and easy style of swimming and so it slowly became synonymous, but that could also just be a story my swim coach told me as a kid 😂😂

[@yohoki4642]

The combat sidestroke isn't the fastest or most energy efficient, it's more about the profile. You want to be less visible to an enemy. So it's the most efficient way to be low profile, is what the text was meaning. For contrast, the freestyle "Front Crawl" is fast, but takes a lot of energy and is hard to keep up for long distances. The backstroke is energy efficient, since you don't have to do anything to keep your head above water, so it's great for taking breaks or long distance. But it's not fast. You don't have the same range of motion to get good speed. The sidestroke is low profile, but it's speed is lower since you only really have half your body. It's a good middle ground between the two. Which leaves the Combat Sidestroke. You get the speed from the crawl/butterfly motion when you're underwater. But you transition to a sidestroke when going up for a breath, so your profile is low. You also aren't splashing a lot and leaving a wake, since a lot of the arm flailing is underwater instead of on the surface. So combat is more of a "jack of all trades". It doesn't excel at anything that the others do. But it's low profile, which is important when there are people with pew pews looking for you.

[@HillSideAstrophotography]

Actually in the freestyle contests the swimmers can choose what stroke to swim. As an example in 100m freestyle runs you can swim butterfly without breaking any rule as long as you do the stroke and the turns corectly.

[@visualgaming2006]

Race idea: vehicles powered by recoil only or strafing only

[@davidfavero7779]

6:40 “so the legs should essentially be kinda like arms” -Scrapman , 2024 , But Also God when he made apes

[@ondrejlukacs6561]

Now you must do combat battle with swimming robots.

[@sadikicaine4881]

I know this is late but, from what i can tell the arms of a swimmer dont move in perfect rotation with the other, but one after another. The first arm makes a full swing before the other moves.

[@jasonkehr3727]

Well your only choices from here are to either make it break the sound barrier or battle Yzuei with one

[@maunewty]

I had this argument at work yesterday about the name of the stroke for the front crawl/freestyle What I argued was the name is of the stroke is the front crawl, and the competition its used in most commonly is freestyle competitions. It is the most commonly used stroke because it is the fastest stroke. The swimmers are in a competition and want to win. Why wouldnt they use the front crawl? This does not mean that the front crawl is the only stroke you can use in free style. Just that it is the most common. Colloquially the terms front crawl and free style are used interchangeablely because of that fact. Why call it freestyle if youre not free to do what you want? His argument was that he was on the swim team in highschool, so he should know. I was wrong because thats not how he was taught. Besides, in swim competitions you have medley swims. Thats where you race individually or in a relay depending on the type of medley swim race. In the medley swim race four strokes are used, which includes freestyle at the end. I just looked at him and told him that just means, use any stroke except for the strokes already used. (Yes, I gave him a dumb voice in my head as I was writting this. Is it immature? Maybe. For context, he's barely 20, and we both drank the Kool aid and chew on cryaons. And this wasn't supposed to be long, but I got carried away, and said bucket)

[@vvvvvvvvvwv]

editor went crazy on this

[@SirNobleIZH]

The mythbusters references always make my day

[@JonathonNixon-wg2jc]

Give the editor a raise

[@nikolaskuklis5925]

Funny is that in real life (if i remember correctly) Legs do the most(or at least when i swim legs only give me more speed than hands only). While this robot seems to do most with hands.

[@m.h.6470]

would have been interesting to see the original paddles on the arms again. they were faster before you put in the gyro, so they should have been even faster afterwards.