Microscope Bench

Hold the microscope, focus it yourself, and find out how small you can see

A drawn compound light microscope that answers to your hands. Send the green dot to the part you would touch, focus a printed letter, three threads and a moss leaf from 4X up to 40X the way a careful biologist does it, work out total magnification and the size of a cell, and zoom from a penny to bacteria to the edge of what light can show.

Nothing is submitted. Progress saves on this device, so a second sitting picks up where the first stopped. Tap any step number to open that step; a number lights up only for a step you have finished. iPad gives every button a bigger touch target; Computer draws a denser picture. Help changes the help around the task, never the task itself. Fill screen hides everything but the tool. The Play button runs the whole focusing procedure as a movie.