Reply to post:

The Register Lecture: How to build your own tractor beam


Beat me to it...

Now If I did the maths correctly a 36GHz radio wave gives a 0.83cm wavelength the similar to the wavelength of a 40kHz sound wave. I wonder if Electromagnetic waves can do the same as sound waves or is it the moving air that does the levitation like this.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon