Cry for help

"This light never turns green"

Reflection

"The angle at which the wave is incident on the surface equals the angle at which it is reflected."

Hero of Alexandria - Awesome dude

Wishing Wall

"It takes as much energy to wish as it does to plan."

Eleanor Roosevelt - Diplomat

Nightstand of problems

Chess army

1. e4 e5
2. Qh5?! Nc6
3. Bc4 Nf6??
4. Qxf7# 1–0

Phlogiston

"... chemists are a strange class of mortals, impelled by an almost insane impulse to seek their pleasure among smoke and vapor, soot and flame, poisons and poverty, yet among all these evils I seem to live so sweetly, that [I'd die before I'd] change places with the Persian King."

Johann Joachim Becher - Alchemist and Cameralist

Windforce

"v = 0.836 B^3/2 m/s" 


Sir Francis Beaufort - Hydrographer