Why do women have periods?

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...

Why are beavers obsessed with dams? - Glynnis Hood

Why are beavers obsessed with dams? – Glynnis Hood

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...

Is this the most beautiful building in the world? - Stephanie Honchell S

Is this the most beautiful building in the world? – Stephanie Honchell S

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....

How did they build the Great Pyramid of Giza? - Soraya Field Fiorio

How did they build the Great Pyramid of Giza? – Soraya Field Fiorio

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...

How the Suez Canal changed the world - Lucia Carminati

How the Suez Canal changed the world – Lucia Carminati

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...

Building the impossible: Golden Gate Bridge - Alex Gendler

Building the impossible: Golden Gate Bridge – Alex Gendler

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...

Building the world's largest (and most controversial) power plant - Alex Gendler

Building the world’s largest (and most controversial) power plant – Alex Gendler

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...

Could we build a wooden skyscraper? - Stefan Al

Could we build a wooden skyscraper? – Stefan Al

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...

One of the most epic engineering feats in history - Alex Gendler

One of the most epic engineering feats in history – Alex Gendler

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...

How the world’s tallest skyscraper was built - Alex Gendler

How the world’s tallest skyscraper was built – Alex Gendler

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,...

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