from the thank-you-science dept.
sciencehabit writes "Researchers have serendipitously discovered that a mixture of urea, glycerol, and soap makes membranes transparent. When they tried the mixture on a developing mouse fetus, they found that it removed all of the pigment from the cells, rendering the fetus completely transparent. The technique allowed scientists to see fluorescent neurons buried several millimeters in the brain."
You can bring any calculator you like to the midterm, as long as it
doesn't dim the lights when you turn it on.
-- Hepler, Systems Design 182