He's a goober that knows with total certainty the hazards of things he deals with.

Lest we forget he did serve in the British Army!

@@momocrashxd7818 I do often forget this, though I was aware of it

Aloof: “not friendly or forthcoming; cool and distant” Wouldn’t say that describes Dan

@@DinnerForkTongue he’s not a goober, he’s a clown in a lab coat

His tone changes from his usual jokey, to matter-of-fact explanation. He did the same thing during one involving explosives, rattled off a rather technical explanation of the process that was so out-of-character for what we normally see.

Former ordinance specialist in the British Army and a veteran of the Afghanistan campaign.

and yet he still lost ashooting competition against Gav

Didn't mention grainage though.

@@baalzagoroth4693 bruh

Especially considering he is using a 9mm pistol with iron sights.

No kidding. He's probably the best shooter on KZfaq outside of the guntubers, right?

well i mean he did serve in the british army

His shot was about 5-7 yards

It literally just shattered

my favorite part about it is how great of an example of physics it is with the last ball maintaining the momentum of the bullet and just about becoming a bullet itself

And it joys me that after all these years goofing around they can still be totally baffled at their experiments and results.

You know he tried fighting that one 😂

I hate to admit that I’m crying off laughter right here 😅😂😂😂

LOL

i saw that too it made me laugh. the way he makes that gesture and reiterates "perfectly hard" is what made him lose it i think

"Perfectly hard and there was no deformation" DanUS, 2022

Hahahahahaha! RIP 9mm bullet - you met a terrifying fate!

That makes a lot of intuitive sense, thanks!

I was wondering why they were so surprised, I figured that would have been an automatic assumption. Oh well, guess I’m just too smart 🙄

@@damonirvine8910 if that feeling lasts, it means you aren't getting any smarter

@@damonirvine8910 Dunning Kruger

Indeed

11:09 begins the setup. His punchline makes much more sense with the preceding fourteen seconds.

i dont get it

I was like “what did Newton do to you Gav!”

@@chair6703 The well obscured humor is the clever usage of down as a homonym. As the story of Newton's interactions with gravity is, for the most part, assumed to be common knowledge, saying that Newton is looking "down" references that he a) is looking at them from heaven, which is usually associated with up and would enable him to look down, and b) was an instrumental physicist in unraveling the universal law of gravity. (This next part is not meant to insult, just covering my bases. Internet trolls and all) Also, in the off chance you DID get it and are making a joke, sarcasm/facetiousness doesn't translate well over text, especially without punctuation. I took it seriously and wanted to help if that's what you were asking for :)

Kinetic Energy = ½mv² The bullet itself weighs 7.5 grams, the steel balls weigh 28 grams each. That equation for calculating kinetic energy results in a value of 459'000J of energy for the bullet and a whopping 1'020'000J for each steel ball. The steel balls they fired through the air cannon had much more energy.

It'd be interesting to see what happens with a rifle round like a 5.56 or 7.62. 5.56 is designed to fragment to make a mess of your insides so I'd imagine much of the same as the 9mm, though with more energy to push the rest of the balls along. A 7.63 is more or less a solid mass meant to drill a hole through things.

​@@jacoblansman8147 I don't know where you got those numbers from, but lets break this down. Kinetic energy formula is correct: ½mv² where m = mass (in kg) and v = velocity (in meters per second) First of all, velocity is squared, so that trumps everything. Double mass, double energy. Double speed, quadruple energy. Bullet: m = 7.5 g = 0.0075 kg v = 785 mph = 350.895 m/s Gives : 0.5 x 0.0075 kg x 350.895 m/s x 350.895 m/s = 461.7 J Steel ball bearing: m = 28 g = 0.028 kg v = 270 mph = 120.69 m/s Gives : 0.5 x 0.028 kg x 120.69 m/s x 120.69 m/s = 203.9 J As you can see, theres more than twice the energy in the bullet than the steel ball. 1 million joules (1'020'000 J) is approximately the energy of 1 tonne (1000kg) moving at 100mph (161 km/h or 44.7 m/s)

@@jacoblansman8147 Um, you may want to check the math again. Remember it's ½mV² meaning the energy increases massively with the V not the m. The bullet travelling at roughly 3 times the speed, but 4 times less mass means roughly 3^2/4 or 2.25 times more energy in the bullet. Also, 1,000,000 J is a gigantic amount of energy, remember that J is calculated in kilograms not grams. Written out: Ball bearing: 270mph=120.7 m/s 1/2*0.028kg*120.7^2 = 204 J Bullet: 785mph = 350.9 m/s 1/2*0.0075kg*350.9^2 = 462 J It really is about better transfer of energy and especially transfer of momentum since it is a newton's cradle after all. The bullet shattering means all the tiny pieces of the bullet maintain most of their momentum as they fly out everywhere towards the right in the camera frame, and not much of the momentum is actually transferred to the newton's cradle.

I love all the people getting totally different answers

Same

A solid brass pistol round or AP rifle round would be great

.50 BMG vs Newtons Cradle at 100,000 Frames lol.

@@5peciesunkn0wn but the first ball is a Prince Ruperts Drop.

Take this! kzfaq.info/get/bejne/h8x0orSorqfFiJs.html

Exactly what I thought of when they said it lol

'Looks upon us' vs 'Looks up on us' - the former doesn't imply the position of the one doing the looking :D

@@logicalChimp lol it sounded like up-on us to me, there was definitely a pause in between. You can even see him smirk a little right after saying it lol

Maybe Gav just thinks that heaven is upside down or something

Literally scroled down at 11:10 just as the outro was playing to start reading comments as usual, and I read your quotes EXACTLY in time as they were saying it.

Huh?

@@user-gx3ji2sj8n normally you would say "look down on us" as in, he is in heaven, looking down, but gav says it as if he is dead looking up from the grave

LMAO I didn't even catch that XD

And here I thought I was the only one that caught it lol.

I was looking for this comment haha

so a professional punching bag on two fronts

One with an advanced understanding of highly volatile explosives. Lol

It's always difficult to remember because he comes across so amiable and harmless... then slices things in mid-flight with a sword.

His specialty is explosives, which is why he always handles the parts where they're blowing stuff up, either with det cord or something else.

@@McGusder LOL

He laughed

@@sachithvp well, he did try, just not successfully

Lol

@@RManPthe1st true

all i could think of is the meme "the balls harden"

and the supports attached to something so it doesnt fly off!

I would assume the balls would just fly up and wrap over the top kinda like the end of the bullet one

kzfaq.info/get/bejne/icCFZMqdyuDXe6s.html

@@PacMonster0 I thought something like this might be an issue. Maybe a projectile of a lesser weight would help instead. I'm not sure. As you said, this is a very fine tuned object, so it would be tough to find, but must be someway of shooting it without immediately destroying it to the extent either

or scaled up, big. balls

@@PacMonster0 I believe its actually more about the speed than anything else. Its about the principle of inertia, since the ball just cant accelerate fast enough to get out of the way of the bullet. Then ofc the bullet shatters because its its less hard.

Look up ar500 vs bullets slow motion. It is pretty crazy.

I wonder what that ball bearing would do to a ballistic gel dummy…

Gives a whole new meaning to a bundle of arrows.

@Zoddom Don't accidentally fall into the mindset of harder equals more better. Soft things don't shatter. Hard things shatter and crack. That's why the part of the ball that was attached to the strings of the first ball was breaking on impact, rather than the actual string. More than anything it was the difference in mass COMBINED with the hardness, than the speed of the bullet and it's inertia. This is also completely disregarding the fact that it's a sphere, which is pretty ideal for diffusing the force of the bullet as it only makes contact with a single point of the bearing, which puts a LOT of force internally on the bullet. Spheres are a REALLY good shape

Haha, I knew someone else had to have noticed that. I thought that was hilarious.

Dan said "Looking down on us" and I, knowing at least a couple of scandalous things about Isaac Newton, thought "Aw, that's a sweet sentiment, Dan." And then Gav. xD

Gav could just mean he’s looking up at us from his grave in the ground, which would be a non-theological perspective, rather than a judgement on the man’s moral character.

don't click on Read more ❌⚠️Otherwise !!..........👹 I said don't do it, still did it😂😜

@@Rahulkumar-rt7md Ofcourse I still did it...

I assume they were using frangible or hollow point bullets and not FMJ (full metal jacket) bullets which are more solid

@@avg345 Looked fmj to me. Lead is just very soft.

@@avg345 Dan explicitly says it's FMJ, and it's certainly not hollow point. Doesn't look like a frangible round either. It was definitely an unexpected outcome, but it's understandable that a small dense ball of stainless steel could break a 9mm FMJ.

Original BB looks like a mini death Star lol 😂😂

Because they have a balls of steel

How’d your exam go ?

Something we didn't know we wanted until now

literally

bullet and newtons cradle, the collab we didnt know we needed...

I've asked every channel I know of for th elast year or so to do this.... I think it will need larger balls than the bullet though....

Now i want to know: How long of a continuous cradle would it take to stop enough of the energy to not destroy the whole thing?

kzfaq.info/get/bejne/icCFZMqdyuDXe6s.html

they probably ued "Lasers"

@@stocktonjoans knowing them they probably didn't. Dan has a history of demonstrating unusually high accuracy

@@Anklejbiter hardly unusually high accuracy when he was in the military

-Great my azz.

Dan has expertise ??? 😜

@@psyotic007 yah, he was in the British military for a few years. So he has firearm and some explosives experience.

Which surprisingly are much more numerous than just the ability to endure Gav's inhuman experiments.

Gav is the tech guru. Dan is the - uhm - hands on get down and dirty skill? hehehe

@@psyotic007 hy Tyttttt5 T55455 TJTNNLK i

It's why I love videos like this or the videos where they go insanely slow. My all-time favourite video on the channel is the pyrex explosion because of the insane amount of depth Gav goes into talking about slow motion.

True about most people, though.

Physics are cool

I don't think either of them is as clueless as they pretend.

@@MrCrockaG My absolute favourite is the quarry explosives one. The carnage is unparalleled.

B not Bee

sorry

Original BB looks like a mini death Star lol 😂😂

@JENNITA B.O May I have my virus in English?

@@daenite2480 lol

Great spoiler 👍🏾

@@tracidtraxxed5311 wow. I can’t believe people were talking about the video in the comments.

Way to spoil the results!! Your comment the top comment of the video so I saw it before I got anywhere in the video!! All jokes of course.

I always forget Dan has a military background lol

Original BB looks like a mini death Star lol 😂😂

It's like Jaime and Adam from Mythbusters, but significantly more British

As a former ordnanceman myself I find the videos extremely pleasing.

Soy me Best síganme enmi nueva cuenta bamos

This is where composites and ceramics come in to play.

@@TalesOfWar That mitigates the hit but doesn't change the possible energy transfer unless you are speaking of a composite liner inside the tank to catch the splinters

@@stephen1r2 I'm not a material scientist in anyway, but to my knowledge metals are crystalline, making me assume energy transfer would spread molecularly in all directions equally... I wonder if a different structure could direct the majority of the energy in a particular direction.

First World War tanks crews wore chain mail to protect from the all the tiny flecks of metal that flew off the inside when they were hit with machine gun fire. Tiny shards of fast moving hot metal, showering the inside. Not fun. Search for “splatter mask” they look scary.

I always thought that outer plate of armor are made as hard as possible with enough ductility on it to shatter the bullet and the inner armor are made of material with high tensile, compressive and shear strength to absorb as much kinetic energy as possible from the bullet fragments.

he he balls 🫵😂

Right, rounded, welded or cast armor is much more effective than riveted armor with all its right angles

@@edwardcardona717 it really depends on the angle except if one has got these special multi material armor they've got today

@@tigersarecool471 as well as medieval tower designers! It’s a very, very, very old concept, likely old as time, though people may not have fully understood it.

kinda sounds like you might be a gun nut idk

kzfaq.info/get/bejne/icCFZMqdyuDXe6s.html

Nothing wrong with being a gun nut. Come on in, the waters fine

we're all waiting for the dan gun channel.

I think it's great because he's so matter-of-fact about it, he changes from amiable test dummy/target to amiable explosives/firearms expert without even changing expression. I still can't get over his hand-to-eye coordination with that katana a few years ago.

Came to the comments to see who else caught it 😁

Yep. I also chuckled when he said "up".

Hell is full of scientists.

@@XREXP0 he was an NCO in the British Army, was in for quite a few years, although they don't mention it much. In the earlier videos there were always sets of them where Dan was "away" etc.

@@dimitrikemitsky Just cause someone was in the army doesn't make them a good shot 😅

@@SlyTreeRat that is completely meaningless to my point.

@@SlyTreeRat My Dad was a crack shot before he got drafted in the late 50s, the upper Brass was impressed enough to give him a spot driving the C.O. (some General at the time), around the base most of the time. I sure do miss him. He could hunt squirrel with a 6 shooter 22cal. A squirrel with each bullet. I know because I was his retriever 😏.

@@SlyTreeRat While true the but the chances of person being a good shot goes up tremendously if they have military backround when compared to an ordinary citizen, especially in Europe.

Gav is the editor and sound designer :)

hey, I'm subscribed to you

@@Zen-751 so? He knows. Also nobody cares.

@@dewaldsteyn1306 everyone cares less about you

I care

Like your mom

If you liked this, check out the various air cannon videos on Smarter Every Day. There's some awesome slo-mo footage and that is a MUCH beefier cannon.

@@adamtennant4936 thanks, I've seen a few, not as keen on that guy (nothing personal) though.

@@sharpskilz He's certainly not as effortlessly entertaining as Dan and Gav.

@@adamtennant4936 Sure, but thats a tall order. They have whatever "it" is in swathes.

@@sharpskilz They really do. One of my favourite channels.

NEVVA'!

If you thought that was cool, you'll love this... kzfaq.info/get/bejne/h8x0orSorqfFiJs.html

Especially compared to 2:54

What?

@@preguicosodasala9277 looks up at us

I don't think i get the joke...

My only guess is a reference to Newton sitting under a tree looking up at apples... But yeah I've no idea. Theres no joke tho

@@preguicosodasala9277 From his cradle.

It has to be "perfectly hard balls"

@@wkndevr819 wear custom body armor lined with Newton's Cradle balls

I have heard of certain people filling the outer walls of their mansions with ball bearings.

Only when shot by an expert with a lucky first shot. As that newtons craddle is shoved right up your um hole it should spread out doing " less " damage.

That is what surprised me also. I wonder what the explanation for that is.

It must be the air flow following the bullet that pushes the cradle, not the bullet itself.

@@speedstone4 Probably the fiberboard is compressed, and then springs back.

@@HappyMonkeyYT that doesn't make sense to me. Whatever you mean by fiberboard, if it springs back, shouldn't it go in the opposite direction?

@@speedstone4 (not a physicist, educated guess) the bottom of the base is compressed, then re-expands, and overextends, pushing it off the table. Additionally, the direct transfer of energy can only go through at the speed of sound in that material, so that's part of the delay.

Maybe a cradle made out of bowling balls and a cannon as the weapon? 😉

No kidding. He couldn't have shot perfectly in between the wood and the base of the cradle if he tried! That was pretty cool.

When you've got good footage, there really isn't any "fail" shots. ✌️🇦🇺

Everything is cool in slow-mo!

Would just pull the frame away easier. The frame doesn't have enough weight the impede the momentum of the 4th ball.

@@maebon Maybe they could secure the base some way?

Fiber wire(braided fishing line) is stronger than steel of same dia.

@@edwardcardona717 They could, but then you're back the wire just snapping. There is a lot of force being transferred into the cradle, it would take quite a bit of engineering to make a functioning cradle that doesn't either snap off the wire immediately or send the base flying off.

@@maebon thats the whole point tho. to see if you can, and to see if theres any difference between the types of wire.

The bullet also grazes the second ball as it passes by, which probably slowed the ball down enough to not snap as it swung upward

Looks like string broke to me

The first ball was hit slightly above center so when the projectile hit it there was a downward force that snapped the string.

I think those are cast.

@@DoggosGames balls = paid actors?

Lots of energy, the structure would probably snap.

Absolutely. These guys have been around since the early days on KZfaq been watching them for yearsss now. Always wholesome nostalgic fun to see them back together.

@JENNITA B.O Ooh, foreign language bots

MVP

cheers

What a whole. Just watch the whole video

@@RepublicanDemocratno

@@RepublicanDemocrat don't really have the time

he was in the military, think.

​@@Reckless-mindfulness They're not trained to shoot at such small targets, they're taught to shoot at the torso. I think all his shots were impressively accurate.

Dan really has good spacial awareness as proven by his shooting and any video where he uses a sword for the most part.

And that's why the cow is spherical

I thought the same. Kinda awesome. I was taught the steel balls 'cant move out of the way fast enough' and something's gotta give.

Hard to get them to stay in line I guess...

@@stahlschorsch Put them in a groove.

Don't even need to have a magnet just tilt the whole assembly up a degree or two and place a chock on the downhill side.

@@WeighedWilson Good point, I was also thinking about balls of different sizes, i mean from large to small in succession

@@stahlschorsch Absolutely necessary they are in contact so that the impact gets transferred to the last ball

the point of the newton's cradle is to have as light a wire as possible.

I thought the weak point was the connection. Most wires ripped off of the balls instead of breaking.

Get it done, #markrober

It's not the wires that broke first.

go to sleep

@@yeskaitlyn8029 I specifically asked not to tell me

It was cool!

That the Newton's cradle ball was cratered is actually evidence that energy was transferred since it takes energy to deform the target. You are right to say that energy was absorbed by the target, but that energy could only be absorbed by the target if it had been transferred to the target.

as someone who didnt finished school, this Is very worthy 👍

I've seen car audio systems actually tear the factory body sheet metal on a vehicle before. It's pretty awesome that a sound system can destroy an automobile. Metal gets torn, glass breaks, holes end up in metal floors, dash boards and interior parts get blown apart, tail lights fall off, etc..