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A Kid-Friendly Explanation of The Big Bang & An Amazing New Discovery by Scientists
Most scientists believe that the Universe began in a Big Bang around 14 billion years ago. The entire Universe was inside a bubble thousands of times smaller than a pinhead, and was hotter and denser than anything we can imagine.
When the explosion called the Big Bang happened, the Universe as we know it was born. In a fraction of a second, the Universe grew from smaller than a single atom to larger than a galaxy. It kept on growing, and is still expanding today.
Now researchers in America think they have found traces left in the sky that prove this that the Big Bang did really happen. It takes the form of a distinctive twist in the oldest light detectable with telescopes. These twists of light are called ‘gravitational waves’ – the effect is a little bit like how waves form on the surface when you drop a big stone in a pond. However, you also have to imagine that the Big Bang formed the pond itself.
The team leading the project, known as BICEP2, has been using a telescope at the South Pole to make detailed observations of a small patch of sky. The aim was to find evidence of ‘inflation’ – the idea that the cosmos grew rapidly in its first trillionth, or trillionth of a trillionth of a second – growing from something unimaginably small to something about the size of a marble.
The leader of the team, Prof John Kovac of the Harvard-Smithsonian Center for Astrophysics said:
“This is opening a window on what we believe to be a new regime of physics – the physics of what happened in the first unbelievably tiny fraction of a second in the Universe.”
Over the coming years, scientists will work hard to investigate every aspect of this discovery. Other experiments will be carried out to see if they can replicate the findings of the American team. If this research is confirmed, it will be one of the greatest scientific discoveries of our time.
EDIT
Dr Sarah Bearchell drew our attention to this video, which explains the concept of gravity and gravitational waves with the help of a towel, an apple and a ping pong ball. Check it out
The Adventures of Cha-Cha the Dragon – Part 1
A chapter story by Iona…
Once upon a time, in ancient China, there lived a wise and mighty dragon. His name was Cha-Cha. He being a magical dragon, he had many enemies. Among these were an ancient race, whom battles with Cha-Cha had all but killed off.
Only one remained. He was the great ”Earth Traveller” or E.T. for short. E.T. could take many forms, including a long pink one that he had to fill in for the birth of his 100th son.Other than these he could take the forms of fearsome animals, such as a tiger, a snake or a badger.
The Doncaster Book Awards – By Kids for Kids
There are lots of children’s book awards, but the Doncaster Book Awards is special. That’s because children decide not only which books they want to win, but even which ones are on the shortlist.
Doncaster is in Yorkshire, in the north of England. Lots of schools in the area, alongside many home-educated kids, register and take part in the awards. First, the children select the shortlist for different categories of books, and these are then voted on by all the schools and the children. Sometimes book publishers ask to get their books on the list, but the answer is always no. This one is by children, for children!
Do You Have the Denim Blues?
Since Levi Strauss and Jacob Davies developed jeans all the way back in 1873, denim jeans have become the garment we reach for at the weekend. They are attractive, hard-wearing and versatile, so it’s no wonder that we spend so much time in them, and so much money on them. In the US alone about 450 million pairs of jeans are bought each year.
But what do you wear when you get bored of jeans? Is there really a comfortable, suitably casual alternative? Lissie, who blogs at GrungetoGoddess has some ideas for those who have the denim blues.
5 Ways to Change Your Mindset
When you are given a task that you struggle with, it can be tempting to give up and walk away. Here are some tips on how to change your mindset.
How will that help? Well, it could enable you to look at the problem in a slightly different way, and that would help you solve it!