0:15 left weighter placed alone, and left hand dropped down.. 0:58 right weighter placed alone, and somehow it remain balanced.. so its cleary a trick.. lots of possible trick can be used, like some mechanical stuff behind center bar (just a simple string to pull down left/right side), or string to hold up each hand, or bigger friction for certain angle of balancer, or one of the balancer is hollow and those liquid has different density, or just a some basic sorcery
Friction. The friction was enough that Newton's 1st law was able to remain in effect until the force wanted to make it move enough to overcome friction. Don't listen to дядя Серёжа if he comments.
The "weights" are probably not very heavy at all. Their point was to change the center of the gravity for the cups of water, rather than to actually tip the scale on their own.
Any body noticed that at 0:56 when he lifts the left wedge and flip, the balance didn't tip over to the right side? That's not making sense. It's as if the wedge doesn't weigh a thing.
+Joey Huang it is the frictional force that keeps the balance in place. The green block is too light and the balance is not lubricated enough to give good readings
Верно подмечено, если приглядеться, то можно увидеть что правая нога (для нас левая) выдвинута вперед и немного приподнята. А также было замечено, что на 1:00 минуте, при снятии одной фигуры равновесие осталось.
Всё верно! Под столом "педаль тормоза", а внутри левой (для нас) пирамидки груз! (На старых базарных весах повторить это не получится). ... Хороший фокус!
Look closer, Veproject gives even some hints ;) 1. Cup on the left is bigger than the one on the right which means: heavier. 2. As Mudhar Hadi noticed, in 0:58 we can see how force of friction locks the scale in horizontal. It is easy to achieve in wooden machines, for instance: here you have side holes in arms in a slight oval shape /this is why they are masked/. The weight of cups forces wooden axles to move into tight side of hole which creates friction, then the friction locks the scale when in horizontal position. The weights of cups differ only a little and that makes it work. Good job Teacher! Your disciples will be able to build a PM machine very soon... ha, ha.
The reason that moving one weight further out does not matter: the reaction on the vertical pieces remains the same no matter where you keep the weight. The torque effect which is greater for the farther placed weight becomes an internal force on the pan itself, so does not affect the balance. The small weight issue makes no sense as already note din many comments
When he puts the cups of liquid on the balance he puts the one cup against the top bar blocking it from moving freely. Then he switches position and puts the other cup against the other side. The cup is restricting the movement of the device making it look like it is still balanced when in reality the weight of the cup against the top bar is just seizing the free motion of the arms.
Great example of water pressure. Water has a unique quality in that the pressure exerted depends on the height of the water, not the total volume. Water weighs 62.43 pounds per cubic foot. To find pressure per square inch, multiply the height in inches by 62.43 pounds and divide by 1,728 (the number of cubic inches in one cubic foot). If the water is 4 inches deep, this is (4 inches x 62.43 lbs)/1,728 = 0.14 psi (rounded off to 2 decimal places). More pressure is exerted when the larger end of the wedge is under the water, and that pressure is transferred through the solid wedge to the balance arm. Less pressure is transferred when the smaller end is placed under the water. Imagine two lines extended straight up from the end of the wedge through the water. This experiment would balance if the water was replaced with a solid mass.
As soon as he turns the weight over on our left it becomes heavier. Maybe the weight is a magnet and he adds extra weight through slight of hand. I like these vids because they make you think. Thanks for posting them.
There must be some sort of wire pulling either one side up, or the other down. I say this because as the left side lowers in the final part, it reaches what appears to be its lowest point but then goes up slightly. It could be balancing, but wait, it goes down even more after that. It isnt balancing to an equilibrium, it looks as though your assistant didnt pull the string in a consistent manner.
...The force in the given area was unbalanced because one side had more pressure in a smaller area making it heavier like when you bring your arms in to twirl when you ice skate :)
Toolshed There may have been more pressure on a smaller area, but the mass is still the same. If i suddenly got bigger feet, that wouldn't make me lighter, would it? And i don't know where you got that whole center of gravity thing from, because that has nothing to do with any of it.
So why DID the one act heavier....according to what you are saying it shouldn't have happened in the first place... so tell me...what made this happen...what are the forces at work in this process? If your feet suddenly got bigger you would weight more.... That's not what I was saying at all... If you Take an object and flatten it out....it can float on water....but if you took the same item and say....condensed it down smaller it would still weigh the same....but its center of force is greater in a smaller area...than if it were spread out over a larger area...do you get what I'm saying....the center where the force is...is greater...
Toolshed Objects with a large width to height ratio tend to float on water because the force is applied over a larger area, therefore not breaking the surface tension of the water. If an object has a smaller width to height ratio, more force is applied to a smaller section of the water, causing it to break the surface tension and sink. Let's say you take a plastic cone. If you place the cone on the water with the flat side, it will float. If you place it on the water with the pointy side, most of it will sink. The mass is still the same, the force just gets aplied differently. The cone isn't heavier because it's placed upside down. About saying it shouldn't have happened in the first place, it shouldn't have. The scale is rigged. All of the machines on this channel are rigged. All these videos are fake. There were just strings connected to both platforms. You can see this at 0:56, when the small weight is lifted the scale doesn't move at all. If you place two objects with the same mass on a scale, the scale levels out, because gravity is applied equally to both sides of the scale. The way the objects are placed on the scale doesn't influence the scale's reading. The force may be applied differently, but the force is still the same.
i think this is caused by the parallelogram. since all the weight will act on the balance at the end / or that vertical stick. therefore, weight on the plateform is the only factor here. however, about the tipping up and down part, My guess is there is a magnet on one side.
+567legodude momentum would be my guess, the scale is unbalanced to out left but is given sufficient friction to prevent it from displaying that, add a little push tho and the scale would overcome the friction, that or you control the friction via a foot peddle or some such.
Friction. The friction was enough that Newton's 1st law was able to remain in effect until the force wanted to make it move enough to overcome friction.
дядя Серёжа At 0:58 he lifts the weight and the scale doesn't move. It is friction. Stop arguing. I have a degree in physics, I know what I'm talking about.
@user-ug3vn2mj7t So you are suggesting that this scale is actually a crude psi scale rather than a weight scale? That actually would make sense considering the Roberval balance is not very accurate at measuring weight, while a normal weight scale does not measure psi at all.
At the start of the video the weight clearly unbalanced the scales but when he moved it upside down later the scales did not move. That is not logical.
If this construction is perfectly frictionless, then it cannot balance unless the masses are EXTREMELY identical. When this is the case, even then, with a minimal touch of the hand or blow to one side, it is possible to cause imbalance.
How about this:: The liquid have a neutral value from the beginning. Later on the liquid understands the added shape and completes it in cooperation with our minds. This effort from the shape of the pyramid and the liquid bends gravity, and we get this effect. That's my answer ^^
Corcan Sorin I don't understand the languish - and google translator did't help. But thnks for trying ^^ oh, and by the way - that was a different sort of scale.
the piramid has less area in the pin, add to the water creates more presurre in the left side, pressure= force by square inch/meter/area, the is a force in less area, and is more force by area in left size
Debas237 This scale design makes such blance offsets impossible, because all rotational movement of the platforms is eliminated and only vertical movement is possible.
len frijoles There is not more pressure, the same amount of pressure is being applied to a smaller area. This is such a common misconception that just refuses to die and it's driving me mad.
jayden blain The height is what effects the rotation in this case. When the weight is flipped over, there is more weight higher and therefore it rotates.
nadurac123 It doens't rotate, the design of the scale eliminates rotational movement in the platforms. How many times do i still have to say this? It's fake, there are strings pulling the platforms.
Thanks a lot for your channel man. I wish i saw this when i was younger. Oh well, will have to make up for lost time because of the make-workers-not-humans schoolsystem.
Akshay Bumma It's not because of center of gravity, it's because fishing lines. There are fishing lines pulling the platforms. Nice try, but you're wrong.
Если пирамидку перевернуть верх ногами, то центр тяжести смещается наверх, из-за этого оно и проседает. В данной системе влияние оказывает какраз центр тяжести по вертикали. Все просто)
??? l unica cosa di differente e che la presione per centimetro quadrato a sinistra e piu alta ma la forza peso e uguale..che e una bilancia che misura la pressione per centimetro quadrato ?
alexis rodriguez jordan cuando coloca las pesas al revés provoca una mayor presión porque el peso se distribuye menos, pero lo que resulta paradójico es que no es posible que la presión aumente la fuerza, sino que eso depende totalmente del peso
heheh Compare 0:16 with 0:59 at 0:59 the two sides kept balanced with the absent of one weight but at 0:16 they aren't not !!!!!!!!!!!! the same weight has different effect ???? Why
the sharper an end the more gravity is in its direction ie is more gravity dynamic? is this scientific and real? I dont think so, weight is weight and sharpness or shape has no effect at all
gillian poon Correction, the same amount of pressure is being applied to a smaller surface. The pressure is the same, how it is applied doesn't influence the scale. There are strings pulling the platforms. You don't know what you're talking about.
Равновесиенарушается при перевороте пирамидки. При перевороте менятся положение центра тяжести пирамидки. Центр тяжести становится выше Весы на реагируют. А теперь представте ситуацию. На одной тарелке весов арбуз весом 10кг. На другой гиря 10кг. Равновесие? Центр тяжести арбуза явно выше центра тяжести гири Значит арбуз перевесит, хотя вес на самом деле одинаковый. Но продавщица то не дура. Ей надо уровнять весы. И что она сделает? Правильно. Добавит гирьку. И арбуз уже потянет на 11кг а то и больше. Придется платить за 11кг.
I wonder I could see the green object of the right side being held alone, because the operador wants us to asume that both green object weight the same.... Another thing, when the green object of the rigtrh side stays alone on the balance it dosen´t drops the balance down ( Why ? ) Because : The Right side of the balance is tricked...it only goes down when pushed only by hand....as done at the beginnig of the video
+Eruben PC yea that would be my guess the scale has a fair amount of friction and favors one side, give the scale a little momentum when placing an object on that side and it will over come the fiction.
Give me a break! When the two small weights are both on the machine and the one on the left is lifted off, the one on the right does not drop down. This alone tells you it is a fraud. Do you know how to explain a fake? You say "It's a fake"
0:15 left weighter placed alone, and left hand dropped down..
0:58 right weighter placed alone, and somehow it remain balanced.. so its cleary a trick..
lots of possible trick can be used, like some mechanical stuff behind center bar (just a simple string to pull down left/right side), or string to hold up each hand, or bigger friction for certain angle of balancer, or one of the balancer is hollow and those liquid has different density, or just a some basic sorcery
0:58 when you lifted the small weight - the scales did not move....
Friction. The friction was enough that Newton's 1st law was able to remain in effect until the force wanted to make it move enough to overcome friction. Don't listen to дядя Серёжа if he comments.
The "weights" are probably not very heavy at all. Their point was to change the center of the gravity for the cups of water, rather than to actually tip the scale on their own.
*****
this men ints gravity is pressure= force / area
***** its heavy enough, check 0:15
Thats what I thought … Hey ?
Any body noticed that at 0:56 when he lifts the left wedge and flip, the balance didn't tip over to the right side? That's not making sense. It's as if the wedge doesn't weigh a thing.
+Joey Huang it is the frictional force that keeps the balance in place. The green block is too light and the balance is not lubricated enough to give good readings
+Nicholas Lau But at the beginning of the video it did tip with one block
Gijs Boskers It is probably random. It drops once does not mean it always drop
+Nicholas Lau He always put the weight further from the center in the right side, I think the right side somehow heavier.
+Thainguyen Tran The design eliminates this problem. The distance from centre of rotation does not affect the balance
на 57 (0:56) секунде он убрал одну пирамидку, а равновесие осталось.
На одной из осей (или сразу на обеих) - управляемый ногой тормоз.
Для правдоподобности надо было его отпустить, когда пирамидку переворачивал.
sashauzer а может два китайца под столом верёвочки дёргают?
Верно подмечено, если приглядеться, то можно увидеть что правая нога (для нас левая) выдвинута вперед и немного приподнята. А также было замечено, что на 1:00 минуте, при снятии одной фигуры равновесие осталось.
tut odesskim privozom popaxivaet )) ...
Всё верно! Под столом "педаль тормоза", а внутри левой (для нас) пирамидки груз! (На старых базарных весах повторить это не получится). ... Хороший фокус!
Look closer, Veproject gives even some hints ;)
1. Cup on the left is bigger than the one on the right which means: heavier.
2. As Mudhar Hadi noticed, in 0:58 we can see how force of friction locks the scale in horizontal. It is easy to achieve in wooden machines, for instance: here you have side holes in arms in a slight oval shape /this is why they are masked/. The weight of cups forces wooden axles to move into tight side of hole which creates friction, then the friction locks the scale when in horizontal position. The weights of cups differ only a little and that makes it work.
Good job Teacher! Your disciples will be able to build a PM machine very soon... ha, ha.
The reason that moving one weight further out does not matter: the reaction on the vertical pieces remains the same no matter where you keep the weight. The torque effect which is greater for the farther placed weight becomes an internal force on the pan itself, so does not affect the balance. The small weight issue makes no sense as already note din many comments
When he puts the cups of liquid on the balance he puts the one cup against the top bar blocking it from moving freely. Then he switches position and puts the other cup against the other side. The cup is restricting the movement of the device making it look like it is still balanced when in reality the weight of the cup against the top bar is just seizing the free motion of the arms.
на 1:00 минуте - при снятии одной фигуры с чаши, весы всё равно остались в равновесии?????
I see you're improved my trickster friend.
This time I must admit, I'm impressed. Way to go!
i love this guy , its impressive how he rigs those experiments
***** Lmao.....You don't believe that perpetual motion machines are real?
Great example of water pressure.
Water has a unique quality in that the pressure exerted depends on the height of the water, not the total volume. Water weighs 62.43 pounds per cubic foot. To find pressure per square inch, multiply the height in inches by 62.43 pounds and divide by 1,728 (the number of cubic inches in one cubic foot). If the water is 4 inches deep, this is (4 inches x 62.43 lbs)/1,728 = 0.14 psi (rounded off to 2 decimal places). More pressure is exerted when the larger end of the wedge is under the water, and that pressure is transferred through the solid wedge to the balance arm. Less pressure is transferred when the smaller end is placed under the water. Imagine two lines extended straight up from the end of the wedge through the water. This experiment would balance if the water was replaced with a solid mass.
the one which is pointy, exerts higher pressure.
Pressure depends on units surface area. Smaller the surface, higher the pressure.
乾述尧 *sigh* No, the pressure is being aplied to a smaller area. The pressure is still the same. the weight is equal.
As soon as he turns the weight over on our left it becomes heavier. Maybe the weight is a magnet and he adds extra weight through slight of hand. I like these vids because they make you think. Thanks for posting them.
0:56 - поднял груз, а весы не двигаются. Обманул!
There must be some sort of wire pulling either one side up, or the other down. I say this because as the left side lowers in the final part, it reaches what appears to be its lowest point but then goes up slightly. It could be balancing, but wait, it goes down even more after that. It isnt balancing to an equilibrium, it looks as though your assistant didnt pull the string in a consistent manner.
when the small he loft the small weight and the lever didn't move i think that may be because of the static friction of the hinge.
I can not understand why; but when one of the two arms is more lower than the other, it is farther from the fulcrum of leverage resulting
This1.
...The force in the given area was unbalanced because one side had more pressure in a smaller area making it heavier like when you bring your arms in to twirl when you ice skate :)
Toolshed The center of gravity is greater
Toolshed still the mass which is causing the force should be equal
Toolshed There may have been more pressure on a smaller area, but the mass is still the same. If i suddenly got bigger feet, that wouldn't make me lighter, would it? And i don't know where you got that whole center of gravity thing from, because that has nothing to do with any of it.
So why DID the one act heavier....according to what you are saying it shouldn't have happened in the first place... so tell me...what made this happen...what are the forces at work in this process? If your feet suddenly got bigger you would weight more.... That's not what I was saying at all...
If you Take an object and flatten it out....it can float on water....but if you took the same item and say....condensed it down smaller it would still weigh the same....but its center of force is greater in a smaller area...than if it were spread out over a larger area...do you get what I'm saying....the center where the force is...is greater...
Toolshed Objects with a large width to height ratio tend to float on water because the force is applied over a larger area, therefore not breaking the surface tension of the water. If an object has a smaller width to height ratio, more force is applied to a smaller section of the water, causing it to break the surface tension and sink.
Let's say you take a plastic cone. If you place the cone on the water with the flat side, it will float. If you place it on the water with the pointy side, most of it will sink. The mass is still the same, the force just gets aplied differently. The cone isn't heavier because it's placed upside down.
About saying it shouldn't have happened in the first place, it shouldn't have. The scale is rigged. All of the machines on this channel are rigged. All these videos are fake. There were just strings connected to both platforms. You can see this at 0:56, when the small weight is lifted the scale doesn't move at all.
If you place two objects with the same mass on a scale, the scale levels out, because gravity is applied equally to both sides of the scale. The way the objects are placed on the scale doesn't influence the scale's reading. The force may be applied differently, but the force is still the same.
i think this is caused by the parallelogram. since all the weight will act on the balance at the end / or that vertical stick. therefore, weight on the plateform is the only factor here. however, about the tipping up and down part, My guess is there is a magnet on one side.
Does this has 1 or 3 degrees of freedom?
Can you tell me the all dimensions of this mechanism?
sir,with due respect, do you take projects from the under graduate students? Thank you.
I do not make projects other than my ones, sorry
Coward.
Gedeon SS who
0:56 - when he pick blue thing , nothing changed.
It's about friction
Newton 1st law
And also
The blue thing is very light, it only change the center gravity of the scale depends on its placement
I'm a bit curious as to why the scale flipped when the weight was flipped. Shouldn't it be the same amount of weight?
567legodude Finally someone with common sense in this comment section.
+567legodude momentum would be my guess, the scale is unbalanced to out left but is given sufficient friction to prevent it from displaying that, add a little push tho and the scale would overcome the friction, that or you control the friction via a foot peddle or some such.
The amount of force on top is being displaced in a smaller area, making it heavier than the other one?
Finally,i have found a smart comment,not a bullshit comment,nice bro
+Sergio Perez No. If you wear high heels you will not become heavier. Try it on a scale
+Sergio Perez In my opinion it is the friction in the joints. Notice how carefully he places the objects
No
Is his sweater black and blue or gold and white?
so… your saying the roberval balance demonstrates unequal force per square inch, rather than distance from fulcrum?
lets see one done without fishing lines
why didn't the balance move when he lifted the right weight?
Friction. The friction was enough that Newton's 1st law was able to remain in effect until the force wanted to make it move enough to overcome friction.
дядя Серёжа It's definitely friction causing it to not want to move when he lifts that weight. Otherwise the other side would've gone down.
дядя Серёжа At 0:58 he lifts the weight and the scale doesn't move. It is friction. Stop arguing. I have a degree in physics, I know what I'm talking about.
дядя Серёжа Please stop being unprofessional. I respected you, you respect me. I know what I'm talking about, you obviously don't.
nadurac123 полямзай сам себе
P=F/S
P pressure
F Force
S surface
S smaller so P bigger
Left weight S is smaller.
@user-ug3vn2mj7t So you are suggesting that this scale is actually a crude psi scale rather than a weight scale? That actually would make sense considering the Roberval balance is not very accurate at measuring weight, while a normal weight scale does not measure psi at all.
the pressure is focused into one spot whereas the other side has the weight distributed more widely
minsb4midnight but shouldn't the overall weights be equal?
One of the glasses was always touched to edge and preventing movment
Hi, could you please tell me the materials needed to build it and the length of each piece of wood? it´s for a science project.
the cup was used as a wedge to prevent teetering and tottering
At the start of the video the weight clearly unbalanced the scales but when he moved it upside down later the scales did not move. That is not logical.
Beim umgedrehten klotz liegt der schwerpunkt höher, wird irgendwo erlärt,warum die waage ausschlägt ?
I was about to comment "Finally something that isn't fake and rigged!" And then you put the little weight on the platform upside down.
spidermanne
I am wondering why can't the balance balance out despite the mass on the two sides were the same?
If this construction is perfectly frictionless, then it cannot balance unless the masses are EXTREMELY identical. When this is the case, even then, with a minimal touch of the hand or blow to one side, it is possible to cause imbalance.
0:56 why ?
The reason why is the frictional force
Those are on purpose to give out good reading
How about this:: The liquid have a neutral value from the beginning. Later on the liquid understands the added shape and completes it in cooperation with our minds. This effort from the shape of the pyramid and the liquid bends gravity, and we get this effect.
That's my answer ^^
www.enciklopedija.hr/Natuknica.aspx?ID=53086
Corcan Sorin
I don't understand the languish - and google translator did't help. But thnks for trying ^^
oh, and by the way - that was a different sort of scale.
what in the hell are you babbling about?
is this real, I never think of it. It is amazing.
JaHVaTaRuS MaxiMuS This is fucking Peter Griffin level logic! "Kerosene is fuel. Red Bull is fuel. Kerosene is Red Bull."
когда он переворачивает вторую пирамидку, весы не меняют своего положения, и рукой он их не придерживает
what is its applications
how can we make it
The entire set is rotating and he is glued to the wall
the piramid has less area in the pin, add to the water creates more presurre in the left side, pressure= force by square inch/meter/area, the is a force in less area, and is more force by area in left size
no he just shifted the center of mass higher. Wpot= m x g x h
Debas237 This scale design makes such blance offsets impossible, because all rotational movement of the platforms is eliminated and only vertical movement is possible.
len frijoles There is not more pressure, the same amount of pressure is being applied to a smaller area. This is such a common misconception that just refuses to die and it's driving me mad.
the trick starts to 0:55 when the weight on right is ballance to no weight on left
Always nice models and makes you think science stuff, awesome.
Nice illusion.. love the channel.. should try some street magic so its even more convincing..
Haah this isnt magic or slight of hand... Its science...
Noah Mcivor how do you explain the same weight moving the balance when upside down
jayden blain The height is what effects the rotation in this case. When the weight is flipped over, there is more weight higher and therefore it rotates.
nadurac123 It doens't rotate, the design of the scale eliminates rotational movement in the platforms. How many times do i still have to say this? It's fake, there are strings pulling the platforms.
Thanks a lot for your channel man. I wish i saw this when i was younger. Oh well, will have to make up for lost time because of the make-workers-not-humans schoolsystem.
i think the sharper end make the force more focus in too the left side but I'm just guessing
Richard Oscar Doll No. Nice try, but no.
CG based scales not longitudinally like normal balance scales due to the cantilever
Segundo 0:55 sostiene un peso pero el otro extremo no se precipita ¿como es eso?.
To spice things up observe 1:23 :P and keep guessing !
1:16 se ve que la balanza no repite el efecto del minuto del minuto 0:58, así que hay un truco.
The answer is simple : 'cause it mesures neither weight nor the mass but only the pressure.
Kese bnaye
0:57 right hand is holding the green weight. Nothing happens. This is no balance.
Concentration of force?
Продавцам
с рынка надо
показать, баксы
лопатой начнут
грести !
😎
Porque cuando cambio la posición de la pesa y quedó solo una no se bajó del lado donde sólo estaba una pesa?
+David Hernandez O Finalmente, alguien se dio cuenta....obvio tiene algún truco y nadie se ha percatado de ese detalle.
+David Hernandez O es cierto, que trucho jaja
Ruben A Caezza siiiii, pero aun asi muchos no caen en la cuenta de porque....
The focus of pressure, like laser heat
0:56 WHY DA F*Q IS THE RIGHT SIDE DOESNT GOES DOWN?!?! FAKEE
it has to do with the mechanism. this is one of his few non trolling videos.
In my box ORLY!? EXPLAIN IT!
This is naebalovo!
Максим Самбуров pochewhy?
OMG! At last something that seems legit!! :D
когда он левую от нас переворачивает почему то весы не перевешивают ?
The position of your leg right is interesting , Mr. Fraude.
it balance the center of mass. when the block put the small end down. the center move up. to balance it, that side have to go down. is that simple
Sambo lini No it isnt. You're wrong. Nice try, but no.
it is not because of pressure but because centre of gravity
Akshay Bumma It's not because of center of gravity, it's because fishing lines. There are fishing lines pulling the platforms. Nice try, but you're wrong.
please do a video showing us why the pointed end of a pin hurts... blood helps the kids learn...
Leo J. Ciaccio II The pointed end of a pin hurts because there is pressure being applied to a very small area.
Man I gotta stop making sarcastic comments on TH-cam when I'm drunk
Если пирамидку перевернуть верх ногами, то центр тяжести смещается наверх, из-за этого оно и проседает. В данной системе влияние оказывает какраз центр тяжести по вертикали. Все просто)
В этом что-то есть. Когда он стаканы снял. То перевернутая пирамидка больше "не спешила" давить сильнее...
??? l unica cosa di differente e che la presione per centimetro quadrato a sinistra e piu alta ma la forza peso e uguale..che e una bilancia che misura la pressione per centimetro quadrato ?
the weight balance between two vertical points.
Please, do the same experiment in comparison with conventional lever scales.
es porque el peso es dividido en un pintó más grande a la derecha y un punto más pequeño en la izquierda.
El peso es el mismo y de todos modos tienen una base igual común, no por cambiar el peso por superficie significa que cambie el peso
you mean to say this trick was played on me peepers not my noggin?
it's vertical gravity axis what's alligning
porque al darle la vuelta, tiene un punto de apollo menor por lo que se aplica más fuerza en menos superficie
alexis rodriguez jordan cuando coloca las pesas al revés provoca una mayor presión porque el peso se distribuye menos, pero lo que resulta paradójico es que no es posible que la presión aumente la fuerza, sino que eso depende totalmente del peso
heheh
Compare 0:16 with 0:59
at 0:59 the two sides kept balanced with the absent of one weight but at 0:16 they aren't not !!!!!!!!!!!!
the same weight has different effect ???? Why
yes 56-59 sec. balanced but 1 in air ? = cheat
surface area decreased and force increased
XtremeAdrenalineGaming man! you are sooo wrong.
Jorge Henrique Soares so what is right in yr opinion?
only a sharp end of pin hurts why? 1:14
here is the answer:
www.slightlywarped.com/crapfactory/curiosities/2010/images/needle18.jpg
How to make
Very sneaky
the sharper an end the more gravity is in its direction ie is more gravity dynamic? is this scientific and real? I dont think so, weight is weight and sharpness or shape has no effect at all
0:56 big fail ahahahah... say the another men that he should lower the left case hahahaha
I have to say, for the first time of your videos, this puzzles me :-/
thats inpossible because mass is mass it cant be changes by gravity or physics so that means that its impossible
I thought it would gonna move forever 😔
sharp edge produce much force.. that is force per unit are. as are is small. thats why
lol ! you are my boss then.
surface area there is more pressure
gillian poon Correction, the same amount of pressure is being applied to a smaller surface. The pressure is the same, how it is applied doesn't influence the scale. There are strings pulling the platforms. You don't know what you're talking about.
at 56 seconds the terrible magician takes both hands off, lifts weight off one side and not a single movement ;)
It hurt me so much when somebody don't know science comment here
Равновесиенарушается при перевороте пирамидки. При перевороте менятся положение центра тяжести пирамидки. Центр тяжести становится выше
Весы на реагируют. А теперь представте ситуацию. На одной тарелке весов арбуз весом 10кг. На другой гиря 10кг. Равновесие? Центр тяжести арбуза явно выше центра тяжести гири
Значит арбуз перевесит, хотя вес на самом деле одинаковый. Но продавщица то не дура. Ей надо уровнять весы. И что она сделает? Правильно. Добавит гирьку. И арбуз уже потянет на 11кг а то и больше. Придется платить за 11кг.
System stable in any position if weght is same.
Изумительно !
This is all due to the geometry of the system
interesting but most enervating music
I wonder I could see the green object of the right side being held alone, because the operador wants us to asume that both green object weight the same....
Another thing, when the green object of the rigtrh side stays alone on the balance it dosen´t drops the balance down ( Why ? )
Because : The Right side of the balance is tricked...it only goes down when pushed only by hand....as done at the beginnig of the video
+Eruben PC yea that would be my guess the scale has a fair amount of friction and favors one side, give the scale a little momentum when placing an object on that side and it will over come the fiction.
It's all about the surface of weight and the gravity :) maybe
Give me a break! When the two small weights are both on the machine and the one on the left is lifted off, the one on the right does not drop down. This alone tells you it is a fraud. Do you know how to explain a fake? You say "It's a fake"