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Results for "History"

Found 153 results

How Sand and Fingers Scanned the World
How Sand and Fingers Scanned the World

Discover how a frustrated grocery executive and a beach day in Miami led Norman Woodland to invent …

The Math That Found the 29000 Foot Roof
The Math That Found the 29000 Foot Roof

In 1852, a mathematician used trigonometry to calculate the height of Peak XV. He proved the world'…

The Crystal That Swallowed a Thousand Solder Joints
The Crystal That Swallowed a Thousand Solder Joints

In the summer of 1958, Jack Kilby stayed behind at Texas Instruments while his colleagues vacatione…

How a Rubber Chemist Saw the Invisible Chain
How a Rubber Chemist Saw the Invisible Chain

In 1920, Hermann Staudinger challenged the chemical elite by proving rubber and cellulose were gian…

How a Pink Stone Tamed Scattered Light in 1960
How a Pink Stone Tamed Scattered Light in 1960

In 1960, Theodore Maiman ignored the experts and built the first laser using a synthetic ruby cryst…

The Dots That Glued the Atoms
The Dots That Glued the Atoms

In 1916, Gilbert N. Lewis tossed broken atom models and used simple dots to explain electron sharin…

How Math and a Cocktail Tamed the Shifting Virus
How Math and a Cocktail Tamed the Shifting Virus

In the 1990s, David Ho used math to prove HIV wasn't dormant, leading to the cocktail therapy that …

How a 1960 Pill Rewrote Women's Fate
How a 1960 Pill Rewrote Women's Fate

Discover how Gregory Pincus and John Rock developed the first oral contraceptive, Enovid, and chang…

How a Wartime Blackout Doubled the Universe
How a Wartime Blackout Doubled the Universe

In 1944, a wartime blackout gave Walter Baade the dark skies needed to discover two star types, ins…

The 8-Pound Toaster That Ate Light
The 8-Pound Toaster That Ate Light

In 1975, Kodak engineer Steve Sasson built the first digital camera using a Fairchild CCD sensor, c…

Taming the 2000-Atmosphere Bomb with a Glass Flask
Taming the 2000-Atmosphere Bomb with a Glass Flask

How Karl Ziegler and Erhard Holzkamp replaced dangerous 2000-atmosphere reactors with a simple glas…

Dorothy Hodgkin Decodes Penicillin's Secret Ring in 1945
Dorothy Hodgkin Decodes Penicillin's Secret Ring in 1945

Discover how Dorothy Hodgkin used X-rays and math to reveal penicillin's secret beta-lactam ring in…