Rainbows happen when sunlight passes through raindrops in the sky ... Place the sheet of paper where you see color. Watch the rainbow appear on the paper. On another sheet of paper, draw a ...

Droplets of less volatile liquids like soybean oil and silicone oil have lower saturation pressures than water.

Ripples, like ones produced by raindrops falling in a puddle ... setting a record for their speed while doing so. The paper is published in Nature Communications. By creating a synthetic surface ...