Microscope
tool for greatly magnifying tiny things - for Stimulating Learning Projects?
see Robert Hooke's MicroGraphia
http://101science.com/Microscope.htm
http://www.cellsalive.com/howbig.htm
You can see blood cells at 200x
A Digital Microscope has the advantage of letting you save images easily. (Beware some may have platform-specific software.)
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