A TWO SPICY BRAINS SERIESIN DEVELOPMENT / A FIRST LOOK

Leaves make railway tracks slippery.

A tiny leaf. A steel railway.
An unexpectedly big question.

Concept illustration of an autumn leaf resting above a railway rail
SMALL THINGS. UNEXPECTED CONNECTIONS.EPISODE CONCEPT

THE COLLECTION / QUESTIONS WE’RE EXPLORING

More things that make sense
once you know why.

SIX EPISODE IDEAS.
PLENTY TO CONNECT.
Storyboard of holes in an old book
HISTORY LEAVES A TRACE

What can bookworm holes tell us?

Sometimes the clue is what’s missing.

Concept storyboard of a fish and measurement
UNEXPECTED CONNECTIONS

Can nuclear tests help reveal a fish’s age?

Two stories you wouldn’t expect to meet.

A first look at possible explanations. These are episode concepts, with research and production still ahead.

04
MATERIALS & MAKING

Why are cables braided?

05
DESIGN & CHANGE

Why did switches change shape?

06
MUSIC & PERSPECTIVE

Why does the past sound different from here?

PRESENTED BY TWO SPICY BRAINS

For the pleasure
of finding out.

There’s a particular pleasure in discovering something interesting, understanding it, and wanting to tell someone else.

That Explains Why starts with a curious detail, follows the connections and looks for the evidence that helps it make sense. Science, history, design and everyday life all have stories worth understanding.

Animated explanations, a human sense of curiosity, and room for that moment when something clicks.

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What have you always
wondered about?

Send us your next why ↗

Questions, corrections or a good connection.
hello@explainswhy.com

© 2026 That Explains Why · A Two Spicy Brains projectFor the pleasure of finding out.