Why do women have periods?
A handful of species on Earth share a seemingly mysterious trait: a menstrual cycle. We’re one of the select few. Monkeys, apes, bats, humans, and possibly elephant shrews are the...
A handful of species on Earth share a seemingly mysterious trait: a menstrual cycle. We’re one of the select few. Monkeys, apes, bats, humans, and possibly elephant shrews are the...
Nestled in the remote forests of northern Canada sits the world’s longest beaver dam. Curving around the water like a castle wall, this 850-meter-long structure is large enough to be...
mithIt’s 1631 in Burhanpur, and Mumtaz Mahal, beloved wife of Mughal Emperor Shah Jahan, is giving birth to their 14th child. A healthy girl is born, but not without difficulty....
As soon as Pharaoh Khufu ascended the throne circa 2575 BCE, work on his eternal resting place began. The structure’s architect, Hemiunu, determined he would need 20 years to finish...
In March 2021, fierce winds blew a container ship off course. In most places, this would have caused a minor incident. But in the Suez Canal, it was a global...
In the mid-1930s, two familiar spires towered above the morning fog. Stretching 227 meters into the sky, these 22,000-ton towers would help support California’s Golden Gate Bridge. But since they...
In 2018, a single power plant produced more energy than the world’s largest coal-powered and gas-powered plants combined. And rather than using finite fossil fuels, this massively powerful plant relied...
Towering 85 meters above the Norwegian countryside, Mjøstårnet cuts a sleek shape in the rural skyline. Housing 18 stories of restaurants, apartments, and hotel rooms, this modern building might seem...
In the mid-19th century, suspension bridges were collapsing all across Europe. Their industrial cables frayed during turbulent weather and snapped under the weight of their decks. So when a German-American...
By the end of the 20th century, the race to build the world’s tallest skyscraper grinded to a halt. Each new contender was only slightly taller than the one before,...