Category: Science

How does a faraday cage work?

How do these conducting structures shield against electricity? You might expect lightning hitting a car to be dangerous, but in fact if you are shut inside the vehicle you are safe. This is because...

Culinary Science: How does sous vide work?

Image credit: Anova Culinary To ensure their food is cooked to perfection, many top chefs use a method called sous vide, which is French for ‘under vacuum’. It involves sealing raw ingredients in vacuumed...

The Human Body: How many cells do you have?

Estimating the number of your body’s building blocks is not as straightforward as it seems By the most recent estimates, the average human is made up of approximately 37.2 trillion cells. To put that unthinkably...

Are we still evolving?

Have culture and technology stopped evolution in its tracks? Every human alive today can trace their ancestry back to east Africa around 200,000 years ago – DNA from a single woman still exists in...