Episode guide
Electricity: The Copper Highway
Inside the walls of your home runs a quiet copper highway. This episode follows the gentle push that becomes lamplight, and explains why the switch always knows.
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8:40
Sleep timer
The science, gently
- Electricity moves as a push passed between electrons in a wire, like a whisper down a long line of friends.
- The push itself travels at nearly the speed of light, though each electron barely shuffles.
- The copper in your walls may once have been ore deep inside a mountain.
Wonder together
- What do you think the inside of a wire would sound like, if it made a sound?
- How many lamps do you think are glowing on your street right now?
- Where was your night-light's copper a thousand years ago?
Tonight's calm-down
When the light goes out tonight, imagine the highway in the walls going quiet lane by lane, house by house, until the whole street is one soft dark ribbon, resting.
Go further together
There's so much more to explore.
The episode is a whole story on its own. But if the wondering keeps going after the audio ends, the Family Guide opens this one all the way up: the same calm voice, turned into something you can do together at the table the next morning.
- Questions written for your child's age, not just their reading level
- One hands-on experiment, simple enough for tonight
- The science words behind it, in plain language
- A printable to color, keep, or fill in
Two versions inside: one for ages 4–6, one for ages 7–10.
Free to read while the library grows.
Listen to this episode.
Tomorrow night
If you are still wondering, an older kind of power, with a heartbeat.
Steam TrainThe rhythm of sleep
Ideas inside this one: heat and energy, force and machines.