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Q: Why do the vanes in a radiometer spin clockwise?
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What is a device that contains vanes that move when exposed to light?

radiometer


Why does a radiometer spin when a light is flashed on it?

The shiny side of the vanes reflects the heat from the light, while the black side absorbs it. As it absorbs the light and heat, it also heats the air molecules near it. This cause the air molecules to exert a tiny bit of pressure on the flags, enough to make them spin.


In a Radiometer which vane absorb the most light energy?

you have a force field that the first vane you can tell it


Why does a radiometer spin when a light is flashed on?

The shiny side of the vanes reflects the heat from the light, while the black side absorbs it. As it absorbs the light and heat, it also heats the air molecules near it. This cause the air molecules to exert a tiny bit of pressure on the flags, enough to make them spin.


Why does sunlight make the vanes in a 'light mill' radiometer spin?

A radiometer has vanes that are black on one side and white or silver on the other. There are two types of these devices, one containing rarefied (low-density) gas and one "containing" a total (or nearly total) vacuum. Both operate under different principles. In the device containing rarefied gas, light is absorbed by the black sides, which get a little warmer than the lighter sides. The temperature differential causes the gas molecules around the paddles to agitate and provide thrust to the paddles. If there is too little gas in the bulb, the vanes won't rotate because there aren't enough gas molecules to produce thrust. If there is too much gas, the vanes won't rotate because there is too much resistance (from the gas itself) for the thrust to overcome. In the other device containing a vacuum, the difference in radiation pressure between the two sides causes the vanes to spin.


Do tornados spin clockwise?

Most tornadoes in the northern hemisphere spin counter clockwise while most in the southern hemisphere spin clockwise.


How to find electrons having clockwise spin and anti clockwise spin in an atom?

by looking at it


Do planets rotate clockwise or counterclockwise?

They spin clockwise


Do tornadoes spin anti-clockwise in the southern hemisphere?

No, normally tornadoes spin clockwise in the southern hemisphere.


Can L drago beyblade spin clockwise?

Yes, L-Drago Beyblades can spin in either direction - clockwise or counterclockwise.


Do tornadoes spin clockwise in the southern hemisphere?

Yes. The vast majority of tornadoes in the southern hemisphere spin clockwise.


Which way do storms that form north of the equator spin?

hurricanes north of the equtor spin counter clockwise and south is clockwise