"Demonstration of an optical technique that allows us to see small changes in the index of refraction in air. A point source of light is reflected from a concave mirror and focused onto the edge of a razor blade, which is mounted in front of the camera. Light refracted near the mirror and intercepted by the blade gives the illusion of a shadow.Seen here are the heated gases from a candle flame and a hair dryer, helium gas, and sulfur hexafluoride gas."
![НЕ ВОЛНУЙСЯ, ЛОИС!
ВРАЩЕНИЕ В ДРУГОМ НАПРАВЛЕНИИ
Я РАСКРУЧУ ЗЕМЛЮ В ОБРАТНОМ НАПРАВЛЕНИИ, И ТЕМ САМЫМ ВЕРНУ
ВРЕМЯ НАЗАД!
KoteÁro: Р
Ату Santa Cruz Luciano Félix
J НАДО БьГнА ФИЗИКУ]
(баи-и-ин. ^ в ШКОЛЕ ходить... А,DC Comics,DC Universe,fandoms,Superman,physics,science,smart jokes for clever](https://img2.joyreactor.com/pics/post/full/DC-Comics-fandoms-Superman-1867202.jpeg "DC Comics,DC Universe,fandoms,Superman,physics,science,smart jokes for clever people,DC Other")
