Who on Earth Invented Traffic Lights?!
Every day we use hundreds of inventions without even thinking about it. In this series, we’ll be celebrating some of the most overlooked inventions, finding out what inspired their inventors and maybe even a few unexpected tales along the way. Contributor Sally Anne asks… “Who on Earth invented… Traffic Lights?!”
Amazing Libraries and Bookstores Around the World
What do you like about going into a bookstore or library? Is it the smell of the books, or the sight of the different coloured spines, waiting to be pulled from the shelf, so that you can dive in?
We have compiled a list of some of the most amazing libraries and bookstores around the world. Some of them you may have heard of, others are less well-known, but all of them made us smile or gasp in wonder. Which one is your favourite, and which library or bookstore would you add to the list?
Real Gabinete Português de Leitura, Rio de Janeiro, Brazil

Real Gabinete Português de Leitura pic by Mathieu Bertrand Struck
A building so remarkable that this one photo cannot hope to do it justice – more pictures here. This is the largest and most valuable collection of Portuguese literature outside of Portugal. The library was constructed between 1880 and 1887 – the facade was carved out of limestone in Lisbon, Portugal and transported by ship to Rio.
Have you ever wondered…about your teeth?
Have you ever had a tooth pulled out by a dentist? If you did, you may have noticed something odd. The roots were probably still attached to the tooth, unlike when a tooth falls out normally. What happens to the root of a tooth, how do teeth grow and why is it important that you take care of them? Samantha Gouldson investigates!
SCIENCE NEWS – Discovery of An Underground Ocean
Earth’s Underground Ocean
In 1864 the French author, Jules Verne, published his novel “Journey To The Interior of the Earth”. In this book 3 men explore volcanic tunnels that lead miles beneath the Earth’s surface, and have a number of strange encounters along the way. One of these is the discovery of a massive ocean, deep underground. Now, 150 years later, it seems that Monsieur Verne’s imagination may have been more accurate than he knew.
An enormous reservoir of water, roughly 3 times bigger than all of the Earth’s oceans put together, has been detected 400 miles below the surface. The water is trapped inside a layer of blue rock called ringwoodite, in the layer of hot rock between the Earth’s core and its surface) that is known as the mantle.




