Category: Science

How does liquid metal work?

Metallic droplets that make intricate shapes Image credit: Steve Jurvetson Iron is common – it’s why your blood tastes metallic. So you might be surprised to know that it also helps to form hedgehog-shaped...

How to make your bike tyre sing

Create music with a tyre and a ruler (Image source: Pixabay) 1. Turn and spin The first thing you need to do is turn your bike over — rest it on the seat and...

Heroes of Science: Cecilia Payne-Gaposchkin

The woman who changed our understanding of the Sun​ Cecilia Payne was born in England to highly motivated and successful parents. Her father was a fellow of Oxford University, and her mother was a...

How does popping candy work?

Discover the science behind this sweet’s sizzling sensation (Image credit: Future PLC) Popping candy explodes on the tip of your tongue, a sensation either loved or loathed by those with a sweet tooth. The...

How to get a good night’s sleep

Understanding your biological clock is the key to a healthy night’s sleep Image source: Pexels Your body is driven by an internal circadian master clock known as the suprachiasmatic nucleus, which is set on...

Why does popcorn pop?

The explosive science that turns tough kernels into a tasty cinema treat Image source: Pixabay 1. Critical temperature Temperature is key; only 30 per cent of kernels pop when heated to 170°C, compared to...