Change Player Size
Watch this video in a new window

Radiometer

The black side of a panel heats up more quickly than the white side. The heated air on the black side of the panel causes the panel to move.  
 
Customize

More From: sinmayo

Loading...
Play All Stop Autoplaying | Play Next

QuickList(0)

1
Clear | Save

Related Videos

3 ratings
Sign in to rate
2,977 views
Flag
close
Want to add to Favorites? Sign In or Sign Up now!
close
Want to add to Playlists? Sign In or Sign Up now!
close
Want to flag a video? Sign In or Sign Up now!

Statistics & Data

Loading...
Sign in to post a Video Response

Video Responses (0)

This video has no Responses. Be the first to Post a Video Response.
Sign in to post a Comment

Text Comments (7)   Options

Loading...
Comment(s) marked as spam Show
coldplasma (1 year ago) Show Hide
 -1
Marked as spam
It doesn't spin because the black side heats up faster than the white side. It spins because the photons transfer less momentum to the black side to the white side. The black side absorbs all of the momentum from the photons, whereas the white side reflects the photons and thus receives twice the momentum required to stop the photon.
NoizHed (1 year ago) Show Hide
 0
Marked as spam
That sounds like the obvious explanation at first. But if you watch the video you'll see the light mill doesn't turn the direction you would expect if that explanation were correct.
NoizHed (1 year ago) Show Hide
 0
Marked as spam
Look which way the mill is turning!
dewiltheone1 (2 years ago) Show Hide
 0
Marked as spam
Reply
imposibble!!!
coolbluelights (1 year ago) Show Hide
 0
Marked as spam
no way, I used to have one it spins wicked fast in the sun!
FiercefulXxX (2 years ago) Show Hide
 0
Marked as spam
thanks for sharing. Reasonable :)

Would you like to comment?

Join YouTube for a free account, or sign in if you are already a member.