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. Link to Original Source
Have you ever noticed that the people who are always trying to tell you
`there's a time for work and a time for play' never find the time for play?