Podcast Episodes
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The Flash You've Never Seen (Physics Level 8)
Season 3 Episode 7
That invisible flash is a cousin of the light you read by, and of your microwave, your dentist's X-ray and sunburn. They're all one family. By the en…
1 day, 12 hours ago
Why Your Red Shirt Goes Black (Physics Level 8)
Season 3 Episode 6
By the end you'll know why that shirt goes black. First we take white light apart to see what's inside it. Then we see that every coloured thing you'…
1 day, 12 hours ago
The Mirror Nobody Can See (Physics Level 8)
Season 3 Episode 5
So today's question is: how do you steer something moving at 300,000 kilometres every second? It turns out light only lets you do two things to it, b…
1 day, 12 hours ago
The Screams Over Your Head (Physics Level 8)
Season 3 Episode 4
We're going to work out exactly what a sound has to be for your ears to catch it, and then why bats deliberately make the ones you can't. By the end …
1 day, 13 hours ago
Seventy Miles an Hour and Zero Newtons (Physics Level 8)
Season 3 Episode 3
We're going to find out why a thing can be moving fast and still have its forces add up to exactly nothing. Then we'll take that idea somewhere much …
1 day, 13 hours ago
The Getaway Car That Was Parked and Speeding (Physics Level 8)
Season 3 Episode 2
We're going to solve this case. To do it, we need to learn to read one kind of motion graph, then catch the detective nearly arresting the wrong pers…
1 day, 13 hours ago
Your Bathroom Scale Is Lying (Physics Level 8)
Season 3 Episode 1
We're going to work out what a scale actually feels when you stand on it, and what number it should really show. Then we'll take that scale somewhere…
1 day, 13 hours ago
The Fittest Might Be Squishy (Biology Level 8)
Season 2 Episode 10
Today we're finding out what 'fittest' really means, and it isn't strongest or fastest. First we'll see what every living thing is actually fighting …
1 day, 14 hours ago
The Forest That Needs an Otter (Biology Level 8)
Season 2 Episode 9
We're going to work out who that animal is and why a forest needs it. To do that we'll zoom out step by step, from one animal to the whole forest, an…
1 day, 14 hours ago
Which Way Does the Arrow Point? (Biology Level 8)
Season 2 Episode 8
We're going to work out what that arrow really means. Then we'll follow it to the top of the food chain and find out why the animal everyone thinks i…
1 day, 14 hours ago