Possible uses of this equipment
A friend, woh has received only primary education, has made an assembly of lenses mounted in cardboard which allows reflection of sun on a paper screen. One can see the image of sun, its corona and possibly sunspots. Using the same equipment, I could see the filament of a 200W bulb clearly. It appears to me that eqipmet causes filtrastion of light which and allows to visualize details of light source. What can such equipment be used for?
|Created:||almost 13 years ago|
|Activity:||about 2 years ago|