That Time When

‘That Time When’ explores the weirdest and most surprising moments in the history of science and innovation. From radioactive ‘miracle water’ to when the U.S. government censored the weather, these stories reveal the curious, delightful, and often ridiculous side of scientific discovery.

An 1886 color illustration depicting a crowd of people, including men, women, and children, gathered around a massive wheel of cheese in the East Room of the White House. A man in a dark coat is carving into the cheese with a knife, while others eagerly reach out with their own knives and hands to take a piece. In the foreground, a small boy sits on the floor eating a piece of the cheese. This event commemorates the distribution of the "Mammoth Cheese" gifted to President Andrew Jackson in 1835.

Andrew Jackson’s White House once hosted a cheese feeding frenzy

The seventh president’s farewell party featured 1,400 pounds of cheddar. Things got messy.

An astronaut in a white spacesuit floats in space above Earth, holding a handmade sign that reads “FOR SALE” in large pink letters. Reflections of space equipment and Earth are visible in the astronaut’s helmet visor, and part of a space shuttle is seen behind them with the blue curve of Earth in the background.

The space billboard that nearly happened

How a 1993 plan to launch ads into space turned into a national freakout.

A colorful vintage poster illustration featuring a large Uncle Sam figure in a stars and stripes outfit, leaning down to adjust the hands of a massive clock with Roman numerals, which has a red center. Below him, a smaller man is running frantically with a small clock showing the time is one hour earlier. The text at the top reads "VICTORY! CONGRESS PASSES DAYLIGHT SAVING BILL." The style is reminiscent of early 20th-century American political or war-time posters.

The U.S. tried permanent daylight saving time—and hated it

In 1974, America set its clocks forward for good in the name of energy savings.

A colorized vintage photo shows a smiling blonde woman in a salmon-colored dress waving her hand while seated at a dark wooden counter or bar. Two men in white staff uniforms and hats are leaning over the counter, laughing with her, one of whom is holding a cigar. The other offers her a drink in a tall glass. Several other men in hats are visible in the background.

The radioactive ‘miracle water’ that killed its believers

In the 1920s, Radithor promised to cure everything from wrinkles to leukemia, but its unintended results were deadly.

A poster with the bold red and yellow text "WEATHER IS A WEAPON" at the center. The poster features a black and white photograph of a rural landscape with telephone poles stretching into the distance. In the top left, a menacing cartoon cloud with a face is visible. A small, separate card at the bottom right encourages people to "buy WAR BONDS."

During WWII, the U.S. government censored the weather

Even baseball rain delays went unexplained.

A light-toned painting shows a body wrapped in a white shroud lying on a bed or stone slab. Above the body, a translucent, ghostly figure with long hair and a white garment floats away, reaching upward with its arms. A framed window on the left side of the room reveals a blue sky and green hills with a mountain in the distance. The style is soft and ethereal, suggesting the departure of a soul.

Science Fiction

The 21 grams experiment that tried to weigh a human soul

In 1907, Duncan MacDougall put dying patients on a scale.

A large white mushroom cloud explodes into the upper atmosphere in a vintage photograph of a hydrogen bomb.

When the U.S. almost nuked Alaska—on purpose

Project Chariot intended to detonate six bombs to build a harbor.

By Shoshi Parks