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When were pubs invented?
Discover how foreign conquerors helped shape a British institution (Image source: Pixabay) When the Romans invaded Britain in 43 CE, they brought with them all the trappings of civilised living: walled cities, literacy, sanitation...
Viruses: What are they and how do they infect cells?
Image source: Pixabay These tiny packets of genetic code are the most successful parasites in the world Viruses are the tiniest biological replicators on the planet, roughly 100-times smaller than bacteria. Made from a...
Why can I remember song lyrics for so long?
(Image credit: Michael Maasen) Question from Sarah Ross The average human brain contains about 86 billion neurons – a vast network that processes information. Memories are formed when specific connections between neurons are strengthened,...
Where is the world’s tallest waterfall?
Image source: Pixabay Discover why you might struggle to visit the tallest waterfall on Earth With their staggering power and awe-inspiring beauty, waterfalls are one of the most popular natural wonders to visit on...
How does a spacecraft take photos?
Image source: Pixabay Getting an image back to Earth from a probe can be complicated but it’s worth it in the end 1.Using filters First, the spacecraft will snap its visible image – such...
How does soap clean?
Find out how interactions between molecules help get our hands clean (Image credit: Jackmac34) Soap is an ancient concept that can be traced back to 2,800 BCE in Babylon, and the basic principle of...
Cyber Warfare: How safe is your computer?
CRIMINALS SPIES, HACKERS AND VIRUSES: HOW THE BATTLES OF THE FUTURE WILL BE FOUGHT ACROSS THE INTERNET The world is in the grip of a new age of conflict. Where once ships, planes, tanks...
Why aren’t there many naturally blue foods?
Question from Edgar Malone There are good reasons why most natural foods aren’t blue. Partly it’s chemistry – many leafy vegetables, for instance, like lettuce and spinach, are green because they contain green-coloured chlorophyll,...
How to make a periscope
Look around corners and over walls with this awesome periscope you can make at home 1. Create the tube The first thing you will need to do is create a tube in which your...
