Dichroic prism

A device that divides an incident light stream into several with different wavelength ranges (colors).

Footage from the 1920s showing a U.S. Air Force plane releasing a giant smoke screen to hide the bomber from an enemy warship.

The intensity of the current is clear.

Mount Fuji, Japan, reflecting off of a nearby lake.

Business ideas

Polish Primer Minister running to parliament after Nazi Germany unilaterally cancelled the non-aggression pact, 1939.

Earliest known photograph of the Taj Mahal, 1850s

Dwayne The Rock Johnson and his father Rocky Johnson, 1981.

Blаck children watching as white children play in a whites only park, 1956. Photograph by Gordon Parks.

Iranian woman in the era before the Islamic revolution, 1960.

Miss Idaho, bizarre potato photoshoot, 1935.

Nicole Kidman in the 80’s. 😁

View of Midtown Manhattan, 1939 by Alfred Eisenstaedt