Thanks :wink:
That's interesting. I notice though that some IR lasers produce beams of wavelength as high as 1300nm which is way above the ~700nm for visible light.
Thanks lpfr. I think I misunderstood Mentz114's response. Are you saying that it would be possible to create the effect seen in the video by directing an IR laser (located off-screen) at the paper? In effect the paper and the air around it is heated quickly and creates convection currents that...
Thank you Mentz114. I suspected that it might heat it rather than push it.
So an IR laser might be out of the question but not to worry I've just found a manufacturer of DC operated micro air pumps that would fit snuggly into the table and could easily be operated by RC. It would only require...
Firstly, this is NOT a homework question although it may sound like it. My question pertains to http://youtube.com/watch?v=H5NwRfMJgOQ".
My question is this: Could an Infrared Laser (there are varying power output lasers of 2W - 20mW) SPIN a paper of say 25 grams as seen in the vid on the tip...