I recently discovered an old phone in an antique shop and realised that today’s kids wouldn’t recognise the sound of the dial turning.
It got me thinking about the other sounds that have disappeared with the advent of new technology. Have a listen to these sounds and try to work out what they are.
Firstly though who am I?
I’m called Agnieszka (Agi for short) and I am home educated with my little sister Magdalena, who is 7 years old. I have a website which I blog on about our life together and anything else I am interested in. I want to be a filmmaker when I’m older, and you can view lots of films that I’ve made on my website, and Magdalena wants to be an artist. She is one of my best friends. We have loads of fun together, and I don’t treat her any differently or treat her ‘specially’, even though she happens to have Down’s syndrome. Which is where the lots of socks come in…but first, let me explain.
I would never have known this unless my little sister, Magdalena was born with an extra 21st chromosome.
Have you worked out yet why World Down Syndrome day is on the 21st of March?
It’s because people with Down syndrome have three chromosomes on chromosome number 21, instead of the usual two. This is also known as Trisomy 21.
So why call it Down’s syndrome? No, it’s not because people with Down’s syndrome are ‘down’ or grumpy, it’s actually because Dr John Langdon Down discovered the condition, and it was named after him.
Lot’s of people my age don’t know what Down’s syndrome is, (actually lots of adults don’t either) and that can make them scared of what they don’t know about, so they ignore Magdalena or talk ABOUT her instead of TO her or say something unkind thinking she won’t understand or be hurt by it. So before I get onto the socks, I want to tell you a bit about what Down’s Syndrome is and what it isn’t!
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
