http://www.outdoorlanternsonsale.com/black-aluminum/
How can I heat up 40mL of water in a beaker using a black box, mirrors, a magnifying glass and aluminum foil?
those are the materials I have to heat up the water, does anyone know how to improve it?
On a clear sunny day, near an open window, arrange the black box on its side, with the opening facing the window. Put the aluminum foil inside the bottom of the black box. Then put the beaker of 40ml water ontop of the center of the foil. With the mirror, aim the sunlight towards the beaker's bottom center. With the magnifying glass between the beaker and mirror, angling it as necessary and moving it back and forth till you have a pinpoint of light at the center of the bottom of the beaker.
Happy heating...hope you have strong arms or put the magnifying glass on a support, without blocking the path of sunlight, to take place of your arms.
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