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
Good Relationships – Healthy Relationships – Tips for Kids
Relationships are hard at any age. Remember that we don’t just talk about relationships when we mean a boyfriend or a girlfriend – it’s about how you get on with your parents, your friends and other people important to you.
There are certain basic ideas that are important to developing good relationships; you master these and life suddenly becomes a lot less stressful! Alice Hoyle has some ideas that may help you have better relationships with the people in your life.
Communication
Image by Robert Collins on Unsplash
Communication is the most important aspect of any relationship. Sharing things with people in your life is important. We do this mostly by speaking and listening. It is important to share how you feel about things and to listen and try to understand how others feel about things (this is called empathy).
How good are you at both talking AND listening? If you favour doing only one of them in a relationship then this isn’t as balanced as it could be- you probably need to work on doing both and so should the other person.
Also sometimes people might say something but their body language (how someone uses their body or their facial expression) maybe saying something different. Take some time to consider what is your body language saying when you talk? What is their body language saying? Do you make eye contact when you talk?
A key to successful communication is to use “I” statements instead of “you” statements- eg. “I feel sad when you call me silly” is better than “You calling me silly makes me sad” because the second one can put the person on the defensive straight away and the conversation can go badly after that.
How Do We Know How Old an Artifact Is? A Kid-Friendly Introduction of Carbon Dating
What can we tell from the study of BONES? According to Tina, we can tell an awful lot about a person by studying their bones – even centuries after they died. This process is called CARBON DATING.
Who Was Christina of Denmark?
You may have heard her referred to as ‘The One Who Got Away’ from Henry VIII, but who was Christina of Denmark? Historian Lucy Allen explains.
“If I had two heads, one should be at the King of England’s disposal!”
Most of the time, when someone claims that a king or queen made a clever quip, it turns out to be made up, but the line Christina of Denmark supposedly used to reply to Henry VIII’s proposal of marriage is more likely to be true than most.