Great Moments In Science

Chlorophyll water has re-emerged as a darling of the wellness world - but does it stand up to the hype?

Chlorophyll water has re-emerged as a darling of the wellness world - but does it stand up to the hype?

It's not a good plan to skimp on sleep. A regular seven to nine hours a night puts you in a better position to live longer, and better.

Vaccines are not a new invention. One of the very first effective vaccinations against disease came from China about 1,500 years ago - and was widely used there to combat Smallpox.

Today’s technology has given us an avalanche of information about how, and where, animals travel. We have radar, motion-activated cameras, drones, DNA sequencing, as well as battery-powered geo-location devices that are light enough to be carried by butterfly, but powerful enough to send their data to orbiting satellites.

Our modern periodic table has 118 known chemical elements. About 94 of them occur naturally and the rest were manufactured by us. An element is a pure substance made of atoms that have the same numbers of protons in their central nucleus. What does an atom look like, and where are these protons?

Dr Karl still has more to tell us about the first known computer - this week it's Part 3. After its discovery it took a little while to clean up - and for the conservators to see what was on the inside. They still didn't know what it was meant to do.

Going deeper into the Antikythera Mechanism - a box with 30 bronze gears inside connected to three dials outside. It predicted the movements of a bunch of astronomical data. But let's start with eclipses of the Sun.

We tend to think of computers as being a fairly recent invention. But the world’s oldest known computer is actually a few thousand years old. It’s called the Antikythera Mechanism