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Wheels appear to rotate backwards in movies because of what is called, 'strobe effect'. When filming, the camera actually takes a series of pictures. An example would be:
Imagine you have a spoked wheel rotating at 50 revolutions per second. If the camera is filming at a rate of 50 frames per second (taking 50 individual pictures each second) then the wheel would be in the same position every time the picture was taken. When viewing the film it would appear that the wheel was not moving. Now, slow the wheel down a little bit and it would be slightly behind the position it was in when the previous frame was shot. Now the wheel would appear as if it is rotating backwards because you are not viewing the continuous motion of the wheel, but rather the positions of the wheel every 1/50th of a second. You can see the same effect when looking at a fan turning in a room with Fluorescent lighting. The bulbs flicker at a certain cycle thus causing the illusion.
What else can I help you with?
Do the wheels of a car rotate backwards?
Unless a brake is engaged, the wheels on a car in neutral can rotate backwards. If the car is in gear, wheels attached to the power train probably will only rotate backwards if the car is in reverse gear. If it is in forward gear or "park" they should not rotate backwards. Wheels not connected to the power train should be able to rotate either direction.
Why do fans appear to rotate backwards?
Fans may appear to rotate backwards due to the stroboscopic effect caused by artificial lighting or a camera's frame rate. The flickering of the light source can make it seem like the fan is moving in the opposite direction.
How would the moon appear to an observe on earth if the moon did not rotate?
it would still appear to rotate
How would the moon appear to an observer on earth if the moon did not rotate?
it would still appear to rotate
What planet has the hottest surface temperature and rotate backwards?
it is Venus.
Why do earth rotate from west to east and the sun and stars rotate east to west?
Well, if you think about it, one is a consequence of the other. If you lie down on the ground and rotate (roll) west to east, everything around you that isn't moving will appear to you to rotate east to west (left to right if your head is pointing north).
When viewed from earthUranus appear to rotate?
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When we view from earth how does uranus appear to rotate?
On its side.
How does the big dipper appear to be moving in relation to the star polaris?
The Dipper appears to rotate in a East to West direction around the celestial North Pole - which is a point that is very close to Polaris.
What direction soes the sun appear to move in Australia?
The same way as the rest of the world... Think of two balls, one stationary, one moving. The moving is the Earth, and the stationary is the Sun. Hold the balls up. Rotate one, and hold the other still. As you can see, the Sun will appear on the same side, from east to west.
Would an observer from Earth see all the planets rotate backwards at one point?
No, an observer from Earth would not see all the planets rotate backward at the same time. This is because each planet rotates on its own axis and orbits the sun independently, so their motions appear to be unique relative to Earth's position.
How can you rotate Widdy Dart Board inner cicle?
You can't rotate only the inner circle. You can rotate the entire Widdy Board by grabbing it on both sides and moving it in the direction you want to rotate it.
