The accident that changed the world | Allison Ramsey and Mary Staicu

The accident that changed the world | Allison Ramsey and Mary Staicu

In 1928, scientist Alexander Fleming returned to his lab and found something unexpected: a colony of mold growing on a Petri dish he'd forgotten to place in his incubator. And around this colony of mold was a zone completely and surprisingly clear of bacteria. What was this mysterious phenomenon? Allison Ramsey and Mary Staicu detail the discovery of penicillin and how it transformed medicine. [Directed by WOW-HOW Studio, narrated by Susan Zimmerman].

Jaksot(97)

The wars that inspired Game of Thrones | Alex Gendler

The wars that inspired Game of Thrones | Alex Gendler

Beginning around 1377, medieval England was shaken by a power struggle between two noble families, which spanned generations and involved a massive cast of characters, complex motives and shifting loy...

15 Helmi 20195min

The science of spiciness | Rose Eveleth

The science of spiciness | Rose Eveleth

When you take a bite of a hot pepper, your body reacts as if your mouth is on fire -- because that's essentially what you've told your brain! Rose Eveleth details the science and history behind spicy ...

15 Helmi 20193min

How Thor got his hammer | Scott A. Mellor

How Thor got his hammer | Scott A. Mellor

Loki the mischief-maker, writhes in Thor's iron grip. The previous night, he'd snuck up on Thor's wife and shorn off her beautiful hair. To fix what he'd done, Loki rushes to the dwarves and tricks th...

7 Tammi 20194min

The history of the world according to cats | Eva-Maria Geigl

The history of the world according to cats | Eva-Maria Geigl

In ancient times, wildcats were fierce carnivorous hunters. And unlike dogs, who have undergone centuries of selective breeding, modern cats are genetically very similar to ancient cats. How did these...

3 Tammi 20194min

Are we running out of clean water? | Balsher Singh Sidhu

Are we running out of clean water? | Balsher Singh Sidhu

Despite water covering 71% of the planet's surface, more than half the world's population endures extreme water scarcity for at least one month a year. Current estimates predict that by 2040, up to 20...

6 Joulu 20184min

Why should you read Kurt Vonnegut?  | Mia Nacamulli

Why should you read Kurt Vonnegut? | Mia Nacamulli

Kurt Vonnegut found the tidy, satisfying arcs of many stories at odds with reality, and he set out to explore the ambiguity between good and bad fortune in his own novels. He tried to make sense of hu...

29 Marras 20185min

Does time exist? | Andrew Zimmerman Jones

Does time exist? | Andrew Zimmerman Jones

The earliest time measurements were observations of cycles of the natural world, using patterns of changes from day to night and season to season to build calendars. More precise time-keeping eventual...

23 Loka 20185min

How do cigarettes affect the body? | Krishna Sudhir

How do cigarettes affect the body? | Krishna Sudhir

Cigarettes aren't good for us. That's hardly news -- we've known about the dangers of smoking for decades. But how exactly do cigarettes harm us, and can our bodies recover if we stop? Krishna Sudhir ...

13 Syys 20185min

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