g'day guys welcome back my name is Dylan if you're new around here I just put a PhD in physics on
hold to create some fun things and one of those things the AI project is now out for free so if
you guys want to come get a new interior design of any room in your house you just go take a picture
of it upload it to my site AI my interior.com and we'll give you a free new design in any
style you want in just a few seconds also doing this with cars and that's also about the line so
come help your boy out come check it out in the description let's get into the video so today
we're watching speed comparison 3D fastest man-made objects I'm excited about this one
I actually know what the fastest man-made object is actually the two like the one before that as
well so we'll see if they're in the video we'll see if they got this correct I remember looking
it up when I was writing the short story once and it's kind of fun it's a fun little fact at least
the second place one is and then the fastest one probably won't surprise you but anyway
should be awesome world's first bicycle 1878 four kilometers per hour
wait wait we're off to a bad start does that say kilometers an hour goodness they
mean kilometers per hour if they're going to have the hour next to the kilometer it needs
to have a little to the power of negative one so I had to point this out because it's
kind of painful and if this is going to be on every object it's going to be really painful
oh yeah
very nice
Here Comes Usain Bolt this is a cool video kilometers oh my God average speed I mean Usain
Bolt what can he run ah there he is I was gonna say I thought it was like 39 kilometers per hour
this is actually bad guys
45 kilometers is that just a regular old cycle bike I feel like I could ride faster
than 45 kilos per hour I'm not gonna lie don't know if I can run quite as fast as you said
really it only went 40
props whoever made this video it's actually awesome cheetah 130.
I should have chucked in like the fastest car and fastest motorbike we have
what the hell is that
I feel like I should know what that is being from Australia but I have no idea World water record
I kind of want to look into that the spirit of Australia on October 8 1978 uh blaring
damn I have no idea what that is on opposite direction runs uh see kilometers per hour
damn it's that looks awesome 130 kilometers put that in my AI my cars uh thing I'm making that
looks so cool you can turn your car literally into a hyper car Supercar it's so much fun
it's fastest motorcycle
flying blue pill blue pilling everyone
foreign
so here's an easy way to understand the sonic boom so like when something noisy is coming
towards you right the noise gets louder and louder until the thing passes nearest
you right that's when it's loudest and then it gets less and less loud as it goes past
now if that thing is going faster than sound you won't hear it coming
right the thing is traveling faster than its own noise so there's no noise built up as it
approaches then it passes you and the noise level goes from zero to loudest all at once right one
second later the thing is hundreds of meters away and way less noisy so it sounds like a Thunderclap
you see the sonic boom that's what happens and as this thing travels around faster than the speed
of sound it'll actually produce a continuous Sonic Boom so if you're standing under it and it travels
over you you know no matter where it travels you will hear this sonic boom and that's if
you're in this you know flight path it's actually called the boom carpet if you're wondering how uh
Pilots handle this Sonic Boom they actually can't hear it uh it's equivalent to like the
wake of a ship and they can see the pressure waves and stuff but like just like a ship the
the like the Wake behind a ship that's the boom carpet unrolls behind the plane this should be
still killing me
it's at x43 fastest jet aircraft
it's an actual space station yep maintaining its orbit you have to be moving fast to do that
because it's constantly in a free fall around the planet so it's kind of like balancing out a bunch
to sort of you know velocities that'll allow you to escape our little atmosphere
still not quite there
it's moving 40 000 kilometers per hour so this is just man-made objects I wonder if
they have another video where they just do fastest objects I'd watch that as well
short is quick Stardust artificial satellite it kind of gets hard to put this into perspective
Now Voyager two Voyage one is my favorite space probe ever it could take what like 40 000 years
to get to the nearest star New Horizons uh gave us those pretty pictures of Pluto
the first time ever before we only had pixelated really terrible pictures I remember telling some
people when I was in like year 10 no sorry I was a year out of school and they didn't believe me
that we didn't really have pictures of Pluto and then a couple years later all of the news
pioneer 11. it gets quicker I'm I'm interested to see if they put on uh
the really fun one that was the fastest man-made object for a long time it's actually really fun
here it is I I'm so glad they included it so there's a little bit of a story behind
this what this manhole cover was launched into space at something like six times escape velocity
except it probably didn't happen a quick little recap of this Legend right this operation Plum
it was a series of I think 29 explosions meant to study you know a bunch of different aspects
of nuclear bombs like how to contain the Fallout from an underground explosion so to test this the
military basically set off a bunch of explosions at the bottom of a long wow covered with these
metal caps and in the Pascal B test when the cap was welded to the top of the well the blast hit
the cap so hard that according to you know one of the analysts of the time Brownlee I think his
name was it reached six times escape velocity and according to Legend became the first object
launched into space after the test when this manhole cover wasn't found he kind of just forgot
about it you know thinking maybe it vaporized in the atmosphere or something and it was only later
when he got credit for the world's first space launch and criticism for not kind of taking the
atmosphere into account when he calculated out the velocity of this manhole cover that he kind
of realized that the legend of this man I'll cover getting launched at six times the escape
velocity of Earth it'd kind of Taken on a life of its own and this Dr Brownlee actually hates
this Legend and even wrote an essay on it in 2002 saying how you know it's just BS I just thought
that was so funny that the fastest man-made object for a long time was a manhole cover that
accidentally launched into space from a nuclear test and then I'm interested to see there's still
half a video and like this was second place I thought Helios too well okay I'm wrong Juno
Parker that's the one that I I'm pretty sure this is meant to be the
fastest man-made object yeah it is so what is what is okay episode two I see
so there was only a couple between second place wasn't there Helios won
and Juno Juno does like you know it's checking out Jupiter and things like
that he's got some pretty pictures of Europa I'm pretty sure I think
Parker so this is the probe that kissed the sun we say it's uh you know we launched it towards
the Sun which requires a tremendous amount of energy that's why it's moving so freaking fast
um and you know it actually kissed the song it entered the um did it into the corona of
the sun where uh the very outermost layer of the sun all right well clearly this isn't a
man-made object speed of light ah between the Earth and the moon 300 000 kilometers
per second yeah between the Earth and the moon what I think it's about on average 350
000 kilometers you drive that you know average lifetime on the car you get like what 400
000 kilometers out of it 350. so you it gives you a good sense of how far the Moon is away
1.3 seconds yeah so the if the moon blew up you wouldn't know about it for 1.3 seconds if
it's here we go back flying blue pill blue pilling everyone at the speed is here
seven five seven
so just really quickly before I explain what the hell this the speed of sound is like why
there's a kind of a limit you also have to understand what the hell even is sound right
it's just pressure wave so our atmosphere is filled of like gas okay so lots of tiny little
molecules right and the way sound moves through this medium is they bump into each other so it's
not like a wave like this when I say a wave I mean where a particle bumps into a particle in
front of it that particle bumps into a particle in front of it right and so the the wave is like this
it like pushes on the stuff in front of it and so uh you know out of wave that's just going to
be quicker bumping okay to kind of see so like a sort of like a longer wavelength that'll be
bumping more slowly into those particles so I hope that makes sense in a normal gas the
speed of sound is limited by the speed of which the molecules travel okay so clearly no property
of the gas can travel faster than the speed of the individual molecules and you know but some
properties of the gas can travel more slowly and you can actually change this by just changing the
temperature like the frequency or the strength of the interactions between molecules right
has something to do with this so the pressure in the room also has an effect on the speed of sound
um you know if you increase the atmospheric pressure that's probably going to lead to
stiffer interactions at higher speeds so one way I like to visualize the speed of sound is
by playing with a slinky so like if you hold the slinky with different amounts of tension
right and then pluck it you you should be able to see uh the waves traveling at different speeds
even had the uh little
I love how they're adding the Sonic booms as well
that's awesome
it doesn't look very quick surely it would be quicker than that wow look there's a space
shuttle all the way up there pocket solo probe I appreciate this comparison this is awesome
wow it just shows you how slowly Voyager 2 is moving in Voyager one and then now you know
kind of on the edges of the solar system some say it's beyond this solar system but really
you know they're not taking into account the art cloud and in my opinion it kind of
has to leave the old Cloud to leave our solar system or cloud is still way out there anyway
guys that'll do for today make sure you come check out the AI my interior project I just
launched make sure you subscribe really helps the channel and I'll see you guys next time