Flashlight with the power of 60,000 lumens

Unemployment rate during COVID in the US, Russia and the European Union. Only the US saw a real (temporary) spike.

Union and Confederate soldiers shake hands on the Gettysburg battlefied 50 years after the battle, 1913

An MRI of what it looks like when you rub your eyes

The speed of light visualized

A father and son in Istanbul, Ottoman Empire, c. 1890.