Time Machine
Scalpels and sketches
Spanish anatomist Santiago Ramón y Cajal made fundamental discoveries in neuroscience.
The minister and the mouse
In the late 1700s, a radical English thinker discovered the presence of oxygen in the air.
Safety first, on the surgeon's table
Joseph Lister's use of an antiseptic spray dramatically reduced deaths during surgeries.
Cloudy with a chance of radiation
Poor weather in Paris sparked the discovery of a new property of matter.
X marks the spot
In 1930, a farm boy discovered what was formerly our solar system's ninth planet.
