Naked Science Forum

On the Lighter Side => Science Experiments => Topic started by: thinhnghiem on 15/06/2016 13:12:07

Title: Can a bulb be used as convex lens?
Post by: thinhnghiem on 15/06/2016 13:12:07

Dear all
I have used a bulb which is filled in with water, it works like a convex lens to concentrate solar energy.
The performance of the water bulb gets highest level when I incline the bulb like in the clip. Solar light beam focus on a bigger dot, in compared with the dot when let the bulb standing vertically.

See my clip at

Title: Re: Bulb used as convex lens
Post by: Colin2B on 15/06/2016 14:24:16

Do you have a science question?
If not we will move this to science experiments