Great Moments In Science

Why do some people get headaches from eating ice-cream or drinking something very cold.

This program was originally published on 19 February 2019

It's not just their ability to run 42 kilometres that separates marathon runners from the rest of us. They've got a secret energy source in their gut.

This program was originally published on 5 November 2019

Combustion engines are marvels of engineering and power, but will they feature in the cars of the future?

This program was originally published on 8 October 2019

When a balloon pops, sometimes it leaves lots of small fragments of rubber, and sometimes it leaves just a couple of larger pieces. What's going on?

This program was originally published on 14 May 2019

Some birds, especially parrots, songbirds and the entire crow family, are surprisingly intelligent - and not just compared with other birds.

Bird poo is usually coloured white—because of the way birds excrete excess nitrogen. But the poo can sometimes be a different colour—because of their diet. Creatures have evolved three main ways of getting rid of excess nitrogen.

Australia is very sunny, and because of that it's a skin cancer hotspot. UV light triggers skin cancer but sunscreen blocks UV light—so is it better to apply more? Not really—and do not mix your sunscreens because there are two different types.

Even in this day and age there are people who think that the earth is flat. The educated people of ancient Greece - about two and a half thousand years ago - had already figured out that the Earth was round. They observed the data that was right in front of them.

When diving to very great depths the body has mechanisms to cope - on the way down, and then back to the surface.

Free diving has a current world record of around 214 m straight down—that's greater than the height of 50-storey building. For thousands of years free divers would collect salvage from shipwrecks to build underwater barricades against invaders.