How does your brain wake up from sleep?

The mystery of how the brain creates consciousness still puzzles scientists, but the mechanics of waking up are starting to be understood.

Aneesh Hehr, Medical Student, Wayne State University • conversation
Jan. 4, 2021 ~6 min

Why do different countries have different electric outlet plugs?

There are 15 different kinds of electrical outlets around the world. One standard would be more convenient, but no one wants to change theirs.

Theodore J. Kury, Director of Energy Studies, University of Florida • conversation
Dec. 21, 2020 ~6 min

Mermaids aren't real – but they've fascinated people around the world for ages

Mermaids are not real, but are meaningful to people around the world.

Peter Goggin, Associate Professor of English, Arizona State University • conversation
Dec. 14, 2020 ~6 min

Curious Kids: If the Earth is spinning all the time, why don't things move around?

The Earth spins around its axis every day – but gravity keeps us firmly in place.

Jacco van Loon, Astrophysicist and Director of Keele Observatory, Keele University • conversation
Nov. 27, 2020 ~5 min

Why do tigers have stripes?

How do tigers – a top predator – successfully hunt their prey when they have bright orange fur? The secret's in their stripes!

Andrew Cushing, Assistant Professor in Zoological Medicine, University of Tennessee • conversation
Nov. 23, 2020 ~6 min

Why do tigers have different stripe patterns?

How do tigers – a top predator – successfully hunt their prey when they have bright orange fur? The secret's in their stripes!

Andrew Cushing, Assistant Professor in Zoological Medicine, University of Tennessee • conversation
Nov. 23, 2020 ~6 min

How do geese know how to fly south for the winter?

Geese honk loudly and point their bills toward the sky when they're ready to start the migration. Here's how they know it's time, how they navigate and how they conserve energy on the grueling trip.

Tom Langen, Professor of Biology, Clarkson University • conversation
Nov. 16, 2020 ~8 min

Curious Kids: How did some animals evolve wings to fly?

Today's birds evolved from feathered dinosaurs.

Matthew Wills, Professor of Evolutionary Palaeobiology at the Milner Centre for Evolution, University of Bath • conversation
Oct. 22, 2020 ~5 min

Curious Kids: How can we tell when a volcano is going to erupt?

Volcanoes give lots of clues which help scientists work out if they are about to erupt.

Ian Skilling, Senior Lecturer in Volcanology, University of South Wales • conversation
Oct. 9, 2020 ~5 min

Why does some rain fall harder than other rain?

Some rainstorms drench you in a second, while others drop rain in a nice peaceful drizzle. A meteorologist explains how rainstorms can be so different.

Jeffrey B. Halverson, Professor of Geography & Environmental Systems, Associate Dean of the Graduate School, University of Maryland, Baltimore County • conversation
Aug. 13, 2020 ~5 min

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