history

A studio portrait of Louis Pasteur (1822-1895).

Episode

439

Pasteur’s Rabies Vaccine

September 23, 2025

In the early days of quantum computing, IBM researchers developed this device with four qubits—the fundamental units of quantum processors.

Episode

436

In Two Places at Once

September 2, 2025

Underfloor heating in the main building of the villa rustica in Hechingen-Stein located in southern Germany.

Episode

416

Ancient Climate Control

April 15, 2025

Pyramids of the Giza Necropolis

Episode

404

Mystery of the Pyramids Solved

January 21, 2025

MIT mathematical physicist Virginia Tower Norwood mans the Storm Detector Radar Set at the Army Signal Corps Laboratories in New Jersey in 1950.

Episode

393

Mother of Landsat

November 5, 2024

Illustration of a fossilized lower extremity of a presumed Megalosaurus femur

Episode

385

The First Dinosaur Fossil

September 10, 2024

Cast of a victim of the AD 79 eruption of Mount Vesuvius

Episode

383

Pompeii: The Resurrection

August 27, 2024

Pliny the Younger at Misenum, where Pliny the Elder's 17-year-old nephew, seated by his mother, is seen recording the events surrounding the eruption of Vesuvius

Episode

382

Pompeii: The Destruction

August 20, 2024

The Historic Entrance to Mammoth Cave

Episode

379

Mammoth Cave’s Rich History

July 30, 2024

Sir William Thomson, Baron Kelvin

Episode

374

Much More Than Absolute Zero

June 25, 2024

Firemen stand on a bridge over the Cuyahoga River in November 1952 to spray water on the tug Arizona

Episode

373

The Burning River

June 18, 2024

Entrance to Big Bend

Episode

372

Big Bend National Park is 80

June 11, 2024

Sketch from one of Leonardo da Vinci’s notebooks

Episode

365

Leonardo’s Rule of Trees

April 23, 2024