The Speed of Light for Building Pyramids

In 1925, the world saw the birth of what just might be the greatest gadget in American History: the Brannock Device. The metal contraption transformed the way we measure feet forever, and more than a century after its invention…it has barely changed. Roman Mars and journalist Pau ...  Show more

A simple cardboard box helped transform Finland into one of the best places in the world to raise a child. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.c ...  Show more

For millennia, Egypt’s mighty pyramids have acted as emblems of the vibrant ancient civilisation that once straddled the Nile Valley. From mysteries surrounding their design and construction and the discovery of new passageways, to the enigma of the Great Sphinx, the pyramids con ...  Show more

Pyramids can be found in ruins around the world, but no civilization perfected the feat of engineering like Pharaonic Egypt. Learn about the mysteries that still surround these giants.

The Great Pyramids of Giza are awesome feats of engineering and precision. So who built them - and how? Was it a mysteriously super-advanced civilization now oddly extinct? Was it even aliens?Nah, course not! Rutherford and Fry investigate how these inspiring monuments were reall ...  Show more

The Great Pyramids of Giza are awesome feats of engineering and precision. So who built them - and how? Was it a mysteriously super-advanced civilization now oddly extinct? Was it even aliens? Nah, course not! Rutherford and Fry investigate how these inspiring monuments were real ...  Show more