"Best Confusing Science Toys That Will Definitely Confuse You" Were these toys cleverly invented by clever inventors who cleverly invent clever things? And were they carefully made by careful makers who make things carefully? I'm sure this video will be viewed with interest by interested viewers who are interested.
Oh my Lord, thank you SO much, you helped me solve a 14 year old riddle my 5th grade science teacher showed the class that nobody could solve, if I ever do meet Mr. Tyner again, I’ll tell him it’s a mirascope and get my $5
Mirascope: two parabolic mirrors create a 3D image above the actual object. The image is not a hologram and is produced solely by reflection off special concave mirrors. For more details check out this link physicstoys.blogspot.com/2018/02/the-mirascope.html Hope it will help you :)
My great grandfather did a lot of woodworking and made a trammel of archimedes where the moving pieces never extended beyond the frame. I played with that thing a lot as a kid
The Trammel of Archimedes is actually useful - you can use it to draw ellipses. We have one in the wood shop I work at. I didn't know that increasing the number of shuttles would increase the sharpness of the ellipse drawn, that's cool.
It is because it doesn't. In the two shuttle version, the distance from the shuttles to the tip is exactly the longest and shortest distances from the center of the elipse. Similar distances can be observed on the 5:shuttle version albeit not as direct, but importantly, the sharpness of the elipse is not due to the number of shuttles, but the relative position of the shuttles on the handle; in the 2 shuttle case: the further up the middle shuttle sits, the sharper the elipse. 3 years late to the party...
Wow, I realize that I am older than dirt, but has nobody ever heard of a WEEBLE???? "Weebles wobble but they don't fall down..." en.wikipedia.org/wiki/Weeble
They made great weapons, you'll never forget being hit by a flying Weeble. Weebles were not the first application of this principle, there were toys on sale in the 40's and 50's to put in your pet Budgerigars cage. They were made in the shape of a Budgie and the birds would sit for hours having a fight with it.
@isaiahut24 But the can is tapered and thus the same principle applies with the exception the weeble wobble had allot less upper mass per volume of air compared to the can which made it so that as long as there was the tiniest motion the unspent kinetic energy of of the weighted bottom held aloft would move the weeble wobble toward the gravitational center from the conical point of the weeble. The curved taper area is key as the weeble weight was slightly above the actual bottom which cause the rounded placing to be the center of gravity just below the curve, as the weighted end is made flatter toward the earth as the mass entirety moves toward the moving gravitational center. Both are doing the same.
No one is too old for toys!! If you enjoy playing with something and have the time then, why not? My mom is in her 40s and still gets remote control cars and drones for Christmas.
Each toy is really amazing and illustrates some fantastic physics and 3D geometry. Love the way the 2 parabolic mirrors still work when you shine the laser! Fundemental physical laws seem just as amazing. Really stunning. Thanks.
Totally misses the point of the Archimedes trammel... which is for drawing symmetrical ellipses. The camera focus is too close, so that's completely out of view.
By placing a weight in the bottom, you lower the center of mass and center of gravity, which means that if the center of mass is on the opposite side of the focal poit as the direction is leaning, the object will return to it's standing position.
@@triclinium8508 because i think indian don't believe anyone....but if they trust anyone then with 💯 % ...so i called it.....and thank u so much it helps me alot
The center of gravity was really close to the bottom. The edge of the bottom acts as a fulcrum for a sort of lever. With the center of gravity on the side of the bottom, it will tip to stand up.
This happens because the mass is more concentrated(placed/pasted/fixed) at the centre of the bottom surface which makes it to come back in its initial position whenever it is tilted.
Best confusing toys that will definitely confuse you. Your confuzelment will be so confusing that you will confuse how many times to put confusing adjectives in a confuzzled sentence. Confuse your friends confuse your enemies confuse your wife confuse your dog! These toys are so confusing that you might even confuse your dog and your wife into confusing one for the other. The confusing confuzzlement possibilities are confusingly endless! Confuse yourself. Confuse boys and girls and put your son in his sister's clothing. Confuse the pizza delivery man into thinking he's at home and you brought _him_ food. Then take his money and photograph him eating your food. Confuse his Boss by showing him the picture and one of these confusing toys. Confuse fish into believing they're land predators and never messed with the rod and reel again. Confuse your enemies during wartime by lobbing one of these toys into their Foxhole. While they're confused as to why you didn't throw a grenade lob a real one.
No. Not at all. The pistons don't travel over center in the engine and the crank and rod assembly (by itself, nevermind the master and slave arrangement in a radial engine) has different kinematics than this one. This is more like a ring and planet (or internal gear) arrangement. The rotor maintains point to point contact with the stationary base around the periphery. en.wikipedia.org/wiki/Epicyclic_gearing
9:02 haven't you known the dolls that never be knocked down?? That has the same properties as that can of beer. The center of gravity is very strong at the bottom center since I think the weight is shaped like a semicircle with the inside hollow and thus pulling the entire object to a standing state. Thanks😂😂😂😎😎😎
Due to centre of mass The mass on the centre is greater than the boundaries(I dont know what specific name it has) that's why the can always stands straight no matter how much you lean it.
8:46 Centripetal acceleration is inversely proportional to the radius, so it decreases as it gets further from the AoR... I feel like it has more to do with angular momentum and a change in the moment of inertia, but then again it's been a few weeks since I last did physics so I may be wrong 😅
Actually, TheActionLab proved that it is not cetrifugal force but atmosferic pressure that pushes the water in the center down. Inside a vacuum a spinning liquid doesn't rise on the sides. Anyway, the video looks really great and the spin cam looks even better! I couldn't find the video to paste the link :-( TAL has so many videos!
The answer to the spinning water quiz is that the water is being flung outward from the center, which is why the water level in the center is so low. And it’s the same reason for why u always get flung off the large spinny things on some playgrounds if they go too fast SCIENCE!!!
Re Trammel of Archimedes: years ago I worked for a UK sculptor named Alan Boyson, and in 1974 he brought something like this into the studio calling it a’Bullshit Grinder’ It had been made by somebody unknown. We both thought it was very apt and funny.
8:25 The liquid stacks highest farther from the center for the same reason why you should put songs that have a lot of sizzly high frequencies near the edge of the LP record. Further from the center of a rotating circle, there is more speed meaning the centrifugal force will act on the water more over there. For the record the amount of vinyl traveling under the needle's contact point is greater for the same amount of time when the needle is near the edge of the record.
1:21 Thats how far I got into the video until the music got to me and I bailed out. Sorry... I had no choice tho.. My only options were Turn the video off or mute the sound.. Thats a no-brainer right?
For the can at the end. There is a gyroscope in the can. An internal spinning mechanism that uses the principle of angular momentum along an axis to keep the can upright desipe the angle forced upon it. That's why it returns to it's original possition
I had one of those mirror illusion piggy banks when I was a kid of about 7, it was a lovely bright yellow and it confused the everloving shit out of me lol
I can't seem to help but to chuckle and say "Cool!" when I see things like this. I used to have a similar illusion bank around 30 years ago. The downside is the very thing that helps create that illusion prevents it from holding much.
2:01 that is why circles move on ground easier than squares because each point on the circle is moving in an up, across, down pattern instead of sliding which causes a lot of friction.
The answer to your can example is a fairly easy one. Aluminum, which the cab is made of, is a very soft and not dense at all. Obviously the can is empty, and that's what makes this so easy. There is a washer, either carbon steel or stainless steel, which cut into perfect circle that almost perfectly fits into the bottom concave party of the can. Stainless/carbon steel are substantially more dense than aluminum and the weight of the washer is perfectly distributed at the very bottom of the can, which in turn keeps the can from tipping over.
For the quiz the center mass lies the centre of the bottom of the can so when the can is displaced it the mass at the centre provides the maximum force towards gravity resulting in maximum torque and corrects itself.
The can behaves like that to attain stable equilibrium which is to return to its original position when slightly displaced:When the can is placed on its base on a flat surface (stable equilibrium),it returns to its original position when slightly displaced because the line of action of its weight cuts the supporting base internally,that is,the circumference of the base of the can.Under this condition,the weight of the body has a moment about the point where it's makes contact with the flat surface.The turning effect about that point tends to restore the body to its original position. I hope I'm correct.
BT: CG below CP: Center of Gravity of the can, often due to a heavy weight lining the bottom of the can, perhaps lead, being below the center of pressure of the can, meaning the vector from the touching edge straight up alongside but opposite the side of gravity.
"Best Confusing Science Toys That Will Definitely Confuse You"
Were these toys cleverly invented by clever inventors who cleverly invent clever things? And were they carefully made by careful makers who make things carefully?
I'm sure this video will be viewed with interest by interested viewers who are interested.
after reading your comments my brain recalled the Plant Vs Zombies game end shout "Zombies ate your brain"
ok bommer
@@RiyaSingh-bs9vk no u
@@thehappygamer2495 ok bommer
@@RiyaSingh-bs9vk ok bomber man 64
3:02 bunch a dancing ricardos
Oi okuyaso
Lol
oh ma gahd
Those are his cells
When you put money into something with a supreme logo you just end up losing money.
LOL
LEL! It's a mirror bank...it only have small storage
No it's a mirror 😂 I have one
@@kouimette No it's a joke 😂 I know one
9:11 call me crazy but... i think, there might be a small chance that it could have a weight on the bottom, maybe. 🤷♀️ idk
That’s literally exactly what it is
@@brohamletmeusethishandle r/woooosh
D Anthonio bruh didn’t know if they were guessing and i was just confirming it
Hi, Crazy
I think you're onto something here.
@@da3108 lĺ0p
"it's easy to fool people when they're already fooling themselves."
- Mysterio
It is not confusing.
It is satisfying.
.
.
Who is agree = like👍🏻
I agree but I’m not giving you a like cuz ur begging...
+ the grammar lol
u giey yes very true as well!
It has larger mass in the bottom
Like boxing baby toy
(I mean sand bag inflatable toy )
Yes but what you actually mean is it has a very low centre of gravity
To clarify even further, the center of mass is below the rim that would serve as a fulcrum point as you try to lay it flat
Muhamed Arbaz yeah i mean that too
What are you talking about?
Muhamed Arbaz that's what she said
Oh my Lord, thank you SO much, you helped me solve a 14 year old riddle my 5th grade science teacher showed the class that nobody could solve, if I ever do meet Mr. Tyner again, I’ll tell him it’s a mirascope and get my $5
Mirascope: two parabolic mirrors create a 3D image above the actual object. The image is not a hologram and is produced solely by reflection off special concave mirrors.
For more details check out this link
physicstoys.blogspot.com/2018/02/the-mirascope.html
Hope it will help you :)
My great grandfather did a lot of woodworking and made a trammel of archimedes where the moving pieces never extended beyond the frame. I played with that thing a lot as a kid
That's cool!
My grandfather made them too. He called them "advanced thumb twiddlers" for fun.
The Trammel of Archimedes is actually useful - you can use it to draw ellipses. We have one in the wood shop I work at. I didn't know that increasing the number of shuttles would increase the sharpness of the ellipse drawn, that's cool.
It is because it doesn't. In the two shuttle version, the distance from the shuttles to the tip is exactly the longest and shortest distances from the center of the elipse. Similar distances can be observed on the 5:shuttle version albeit not as direct, but importantly, the sharpness of the elipse is not due to the number of shuttles, but the relative position of the shuttles on the handle; in the 2 shuttle case: the further up the middle shuttle sits, the sharper the elipse.
3 years late to the party...
Wow, I realize that I am older than dirt, but has nobody ever heard of a WEEBLE???? "Weebles wobble but they don't fall down..."
en.wikipedia.org/wiki/Weeble
no but they still hurt if you tread on them thou ,lol
I HAVE the commercials were cool
They made great weapons, you'll never forget being hit by a flying Weeble. Weebles were not the first application of this principle, there were toys on sale in the 40's and 50's to put in your pet Budgerigars cage. They were made in the shape of a Budgie and the birds would sit for hours having a fight with it.
Now I feel old because I grew up with them and I am only 19 about to be 20 in 6 months.
@isaiahut24 But the can is tapered and thus the same principle applies with the exception the weeble wobble had allot less upper mass per volume of air compared to the can which made it so that as long as there was the tiniest motion the unspent kinetic energy of of the weighted bottom held aloft would move the weeble wobble toward the gravitational center from the conical point of the weeble. The curved taper area is key as the weeble weight was slightly above the actual bottom which cause the rounded placing to be the center of gravity just below the curve, as the weighted end is made flatter toward the earth as the mass entirety moves toward the moving gravitational center. Both are doing the same.
My two grown-up kids are 24 and 21 so I'm a bit old for toys.
Now, where's my credit card?
No one is too old for toys!! If you enjoy playing with something and have the time then, why not? My mom is in her 40s and still gets remote control cars and drones for Christmas.
Check the dark Web your card is on there I'm sure
@@Jessicahasopinions right my toys has triggers when pulled they go bang and bad guys dissappear
@@kennethsee6262 you are such a badass omg
2:48 what you see when you're rubbing your eyes
7:13
Every geometry dash nine circles wave part decoration ever
that reflective wind spinner was dope..
Each toy is really amazing and illustrates some fantastic physics and 3D geometry. Love the way the 2 parabolic mirrors still work when you shine the laser! Fundemental physical laws seem just as amazing. Really stunning. Thanks.
So cool gadgets. I wish someone would show these to flat earthers who say you can always trust your senses.
Great video and music fits it perfectly.
From where we can buy these
2:15
**normal regular music**
ME:"OOONE LAAAST TIIIME I NEEEED TO BEEEEEE THE OOOONE WHO TAKES YOUU HOOOME"
Only if it includes the head wiggle along with the edm elevator music
Totally misses the point of the Archimedes trammel... which is for drawing symmetrical ellipses. The camera focus is too close, so that's completely out of view.
i was going to ask or search what those were for, but you are awesome for saving me some time. i give you a thumbs up!
@@melkel2010 - Glad you know it and you're very welcome! :-)
6:01 Ah, I see. The illusion is not the object itself but the video of it taken from a carefully-chosen angle.
Yes it is the angle and the side shape. This arrow and the next are related in design
That Reflective Wind Spinner is Amazing. Any ideas where I might get one. UK if possible Thank you
I just selected Physics and Maths as me pre-classes,
Wasn't disappointed at all! 😂
By placing a weight in the bottom, you lower the center of mass and center of gravity, which means that if the center of mass is on the opposite side of the focal poit as the direction is leaning, the object will return to it's standing position.
Just loved the reflective wind spinner...❤
I would have purchased from your store except the captchas prevented me.
Brilliant
My favourite is the 5 shuttle Archimedes trail, I just love the way all of the lines flow up and down :]
Yeah that toy is just fun to mess with at my desk at work.
Thanks for the like good sir
Thank you for the kewl visuals, very satisfying.
Great fun! I wonder if that spinner could be used as a bird scarer if you grow fruit in the garden!
The extra weight in the bottom of the can pulls it back level
answer to the riddle
The can has a really heavy weight on the bottom of it.
Wow....😨😱😱😱 It's so freakin amazing ,the right pointing arrow was damn confusion....now I am confirmed that physics is also creative
The right pointing arrow is not physics, it's phenomenon is based in our visual interpretations.
I am indian .....I love ur channel. ....I got practical knowledge of physics from ur video....thx u so much
Why do u say u are Indian?
@@triclinium8508 because i think indian don't believe anyone....but if they trust anyone then with 💯 % ...so i called it.....and thank u so much it helps me alot
The center of gravity was really close to the bottom. The edge of the bottom acts as a fulcrum for a sort of lever. With the center of gravity on the side of the bottom, it will tip to stand up.
This happens because the mass is more concentrated(placed/pasted/fixed) at the centre of the bottom surface which makes it to come back in its initial position whenever it is tilted.
9:06 something heavy but small is stick to the center of the bottom inside the can
Center of mass & gravity makes this
The lever on top of the trammel of archimedes describes a perfect ellipse
Yes, indeed, but what about the 5 shuttle one? I'd like to see it in action with a pencil, tracing on paper...
@@saveriog.825 Just trace where the central axis of the turning rod is.
My eyes: WOW
Me: wow
My brother: Wow
My mom: Wow
my dad: ...
My brain: Hey, that's ilegal!
why didn't these toys confuse me?
i'm so confuse right now
So you are
Bamboozled
Is the wrong spelling intentional? Sorry I'm bad at social cues
Best confusing toys that will definitely confuse you. Your confuzelment will be so confusing that you will confuse how many times to put confusing adjectives in a confuzzled sentence. Confuse your friends confuse your enemies confuse your wife confuse your dog! These toys are so confusing that you might even confuse your dog and your wife into confusing one for the other. The confusing confuzzlement possibilities are confusingly endless! Confuse yourself. Confuse boys and girls and put your son in his sister's clothing. Confuse the pizza delivery man into thinking he's at home and you brought _him_ food. Then take his money and photograph him eating your food. Confuse his Boss by showing him the picture and one of these confusing toys. Confuse fish into believing they're land predators and never messed with the rod and reel again. Confuse your enemies during wartime by lobbing one of these toys into their Foxhole. While they're confused as to why you didn't throw a grenade lob a real one.
The 5 shuttle Archimedes trail is an example of how a radial aircraft engine works.
No. Not at all. The pistons don't travel over center in the engine and the crank and rod assembly (by itself, nevermind the master and slave arrangement in a radial engine) has different kinematics than this one. This is more like a ring and planet (or internal gear) arrangement. The rotor maintains point to point contact with the stationary base around the periphery. en.wikipedia.org/wiki/Epicyclic_gearing
the shuttle reminded me of engines
9:02 haven't you known the dolls that never be knocked down?? That has the same properties as that can of beer. The center of gravity is very strong at the bottom center since I think the weight is shaped like a semicircle with the inside hollow and thus pulling the entire object to a standing state. Thanks😂😂😂😎😎😎
Due to centre of mass
The mass on the centre is greater than the boundaries(I dont know what specific name it has) that's why the can always stands straight no matter how much you lean it.
If anyone of these fail, its the end of universe
Lower centre of mass!
And also they filled the top with some very bouyant gasses to further lower the center mass beyond the depth of the container.
Answer: Centrifugal force. The closer to its middle, the less force.
Didn't notice it was solved already...
It would be nice if you provided links to the original designers of these things
8:46 Centripetal acceleration is inversely proportional to the radius, so it decreases as it gets further from the AoR... I feel like it has more to do with angular momentum and a change in the moment of inertia, but then again it's been a few weeks since I last did physics so I may be wrong 😅
CMYK Coasters are absolutely WONDERFUL for anyone with experience in the printing industry. Otherwise, "Huh? Duh?"
Please also mention the original use of these objects... like trammel of archimedes .... bet he built it to show something.. what was it?
Actually, TheActionLab proved that it is not cetrifugal force but atmosferic pressure that pushes the water in the center down.
Inside a vacuum a spinning liquid doesn't rise on the sides.
Anyway, the video looks really great and the spin cam looks even better!
I couldn't find the video to paste the link :-(
TAL has so many videos!
I watch him too
Whats the first song
Please check out video description for details
There is some weight kept inside the can at the bottom
Or may be due to magnets(not sure)
The answer to the spinning water quiz is that the water is being flung outward from the center, which is why the water level in the center is so low.
And it’s the same reason for why u always get flung off the large spinny things on some playgrounds if they go too fast
SCIENCE!!!
I'm not confused but satisfied with my great inventors 👍🏻🌹🌹
Re Trammel of Archimedes: years ago I worked for a UK sculptor named Alan Boyson, and in 1974 he brought something like this into the studio calling it a’Bullshit Grinder’ It had been made by somebody unknown. We both thought it was very apt and funny.
What do you get when you combine a reflective hologram with a mirascope? An urgent message to Obi-wan, of course. ;-P
8:25 The liquid stacks highest farther from the center for the same reason why you should put songs that have a lot of sizzly high frequencies near the edge of the LP record. Further from the center of a rotating circle, there is more speed meaning the centrifugal force will act on the water more over there. For the record the amount of vinyl traveling under the needle's contact point is greater for the same amount of time when the needle is near the edge of the record.
No body know how this all came in those people minds 😱
Ehh, actually many people know how these came in the creators minds.
1:21
Thats how far I got into the video until the music got to me and I bailed out.
Sorry...
I had no choice tho.. My only options were Turn the video off or mute the sound.. Thats a no-brainer right?
So you are claiming a focus deficiency then :p
Well, I can't complain, some of these are pretty mind tricking, but I do know the secret of the bank.
9:10 their is weight at the bottom of the can... hollow in middle but full at bottom... (example the space of a donut )
There is something very heavy in the bottom of the jar. Because of this, the center of mass is very low.
(Google Translate)
Plus maybe under table there is a magnet :)
"Jar?" You sir are not a beer drinker.
@@CoolDogWalter I used a translator. I do not know English.
solution of Quiz-Because the can is having weight in the bottom of can . Thus if you bend the can it stand up back
This is what I call art. Not some undefined abstract paintings
For the can at the end. There is a gyroscope in the can. An internal spinning mechanism that uses the principle of angular momentum along an axis to keep the can upright desipe the angle forced upon it. That's why it returns to it's original possition
It's more like psychophysic. Any effect you have shown, can be also explained with psychological effects
The two trammels at 1:04 ansd 1:57 could both definitely be piston motor designs, especially the 5 shuttle trammel--like a radial engine
I had one of those mirror illusion piggy banks when I was a kid of about 7, it was a lovely bright yellow and it confused the everloving shit out of me lol
Where can I have a customised photo printed as CMYK coasters ??
The bottom part of the can is heavier
Right
The centre of mass of the can is situated at the bottom
....changing the center of gravity
There can be two reasons
1) Heavy mass at the base of can
2) Magnetic base of can
I can't seem to help but to chuckle and say "Cool!" when I see things like this.
I used to have a similar illusion bank around 30 years ago. The downside is the very thing that helps create that illusion prevents it from holding much.
Its not confusing its satisfying!..
And also mind blowing
Can you please tell us the name of that paper that shows the magnetic field?
Magnaview film
www.physicsfunshop.com/search?keywords=Magnaview+film
@@physicsfun thanks
Physics is *FUN*
2:01 that is why circles move on ground easier than squares because each point on the circle is moving in an up, across, down pattern instead of sliding which causes a lot of friction.
what's up with the music?
what did I do to you?
to deserve being punished!
hey hey, there's nothing wrong with the music. I actually enjoyed listening to them.
Sounds better than most music that gets released these days
The answer to your can example is a fairly easy one. Aluminum, which the cab is made of, is a very soft and not dense at all. Obviously the can is empty, and that's what makes this so easy. There is a washer, either carbon steel or stainless steel, which cut into perfect circle that almost perfectly fits into the bottom concave party of the can. Stainless/carbon steel are substantially more dense than aluminum and the weight of the washer is perfectly distributed at the very bottom of the can, which in turn keeps the can from tipping over.
Your videos r to good love your background music.
Where can i purchase the right pointing arrow from?
Didn’t confuse me
Wait a second
These are just cool things
and the STL files to 3d print the Hyperbola Hole are located . . . where?
Because you added some weight inside it and made the center of gravity more lower.
This video is more satisfying than confusing
Answer to the quiz: the spining motion also relates to going side to side so water the goes opisite(sorry for bad spelling) direction
Can u plz explain me in brief how exactly did u do the right arrow experiment......and the materials required
We've seen all of them so many times... Please make another video when you have something really new.
For the quiz the center mass lies the centre of the bottom of the can so when the can is displaced it the mass at the centre provides the maximum force towards gravity resulting in maximum torque and corrects itself.
And the top of the can has some stored gasses that are very bouyant. To further lower-er the center of mass, even beyond the botom of the can.
My inner geek is grinning like an idiot. I enjoyed this video way too much 😊
The can behaves like that to attain stable equilibrium which is to return to its original position when slightly displaced:When the can is placed on its base on a flat surface (stable equilibrium),it returns to its original position when slightly displaced because the line of action of its weight cuts the supporting base internally,that is,the circumference of the base of the can.Under this condition,the weight of the body has a moment about the point where it's makes contact with the flat surface.The turning effect about that point tends to restore the body to its original position.
I hope I'm correct.
Either the bottom is heavier or maybe you out a gyroscope in it xD prob not bc it will probably spin around.
The hole in the tramnels is for a pen or pencil so you can see it draws an ellipse instead of a circle.
For those who think Physics sucks
Well, Think Again!!!
they still are
only the one with maths that is
i like theory ones
Weight at the bottom is higher and also the shape of bottom is 45°(some angle with bottom flat shape)
So the tin have tendency to stand always
1:10 wow the new engine technologies now days 😂
Ok that reflective wind spinner has one of the most amazing effects I've ever seen. Where do I get one? For real?
i see them in all kinds of garden supply stores. just mostly out of my price range for more just stuff
What a brilliant toys 😵i really want this😔😍
BT: CG below CP: Center of Gravity of the can, often due to a heavy weight lining the bottom of the can, perhaps lead, being below the center of pressure of the can, meaning the vector from the touching edge straight up alongside but opposite the side of gravity.