What does a fan in a vacuum do?

In this video of The Action Lab, the Action Man puts a small fan into a vacuum chamber and pours a bunch of little styrofoam beads in it. At atmospheric pressure the beads fly all over the place. As he reduces the pressure inside a vacuum chamber, the beads slow down and eventually stop moving.

What is the science behind a fan?

The moving blades of a ceiling fan push the air downward, which blows your body heat away from your skin, thereby cooling you off. This movement means that a room with a ceiling fan isn’t cooler, but feels more refreshing because of the interaction with your body, so you don’t run your air conditioning as much.

What would happen if you put a fan in space?

The motor produces a force on the blades to rotate them and the blades will exert an opposite force which will rotate the body in the opposite direction. If the fan is inside a spacecraft, the fan blades will also push on the air and the air will push on it, propelling the air forwards and the fan backwards.

Can you feel a fan in space?

In space the propeller on our fan would spin but would have nothing to interact with. The base of the fan would also be affected. For every force is an equal and opposite reaction.

What kind of fans do vacuums use?

An axial fan is used in vacuums to create suction. As seen in Figure 5, an axial fan has precise angles to optimize the amount of air it can displace. The fan has an opening in the center of the blades.

How does a fan cool off?

The fast moving air increases the rate at which our bodies lose heat due to convection and evaporation. The faster moving air from the fan displaces the warmer air that is in direct contact with our skin. This enhances the rate of convective heat transfer, which means we feel cooler.

Would a fan work on the moon?

Since the moon is pretty much devoid of atmosphere, a fan would have nothing to blow. The fan could certainly move, it just wouldn’t accomplish anything. It will work.

What happen to the electric fan when you turn it on?

When we turn the fan on after it has been plugged into the outlet, what happens to the electrical energy? (It is converted into kinetic energy by means of an electric motor. (The fan’s blades move air around the room. The kinetic energy of the moving blades does work in moving air through the fan blades.)