On 1st and 2nd of November, Mexico celebrates its Day of the Dead (Día de los Muertos). This is a festival that begins on 28th October and ends on a public holiday on 2nd November. During this time, Mexicans believe that the deceased have permission from God to visit friends and relatives on earth, and once again enjoy the pleasures of life. It isn’t seen as a time of sadness and mourning but as a celebration of life.
The Aztecs believed that death was just a part of the circle of life and offered gifts to the goddess Mictecacihuatl (“Lady of the Dead”) for deceased children and adults. This tradition was incorporated into the Catholic celebration of All Saint’s Day and All Soul’s Day when the Spanish conquered the country. You might know All Saint’s Day by its other name – Halloween!
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
Have you been inspired by the Great British Bake Off?
We are BIG fans of 17 year old Martha, and love that she has shown Britain that kids can bake just as well (if not better!) than adults. After leaving the show, Martha said “I wanted to show that young people can do it and you don’t need hundreds of years of experience”.
A lot of you probably have already done a bit of baking with parents or grandparents, but moving on to baking independently can be a bit daunting.
To help you get your bake on, we’ve some tips on getting started, and simple recipe ideas that will make you feel like you’ve baked a showstopper. So, move aside, mums and dads, this is all about baking for kids!
On Your Marks, Get Set… BAKE!
Image Credit
Before you start to bake, get all your ingredients out and put them on the worktop. This prevents you getting halfway through the recipe and then noticing that you’ve run out of something really vital, like eggs!
Have you ever sat in a Maths class wondering when you will ever need to do long division without a calculator? Or silently cursed your Geography teacher while learning about the formation of oxbow lakes? And History? That’s all in the past and irrelevant, isn’t it?
In this series of articles, we will look at some of the subjects we learn at school, and try and answer the question: What’s the point in learning maths?
Let’s start with Maths. It is a fact of life that while some people are good at Maths, for others it is a daily trial. It is, however, along with English and the sciences the subject considered to be the most important. Why? Of course, we all know that it is important to be able to count, and do simple sums, but when, in real life, do we actually use it?
Em is a reader. A bookworm. She always has been, and always will be. Some people love to read, but some people don’t. Which are you? Maybe you are nagged by your parents and teachers for not reading enough. Perhaps reading is a chore, part of your homework assignment that you rush through, without enjoying because it has to be done. Would you like to learn to love reading? Em has some tips for you.
I really love reading. I mean, I really love reading. I learned to read when I was 4 years old, and I’ve never really stopped since. I used to amaze adults with my reading – I read classic Greek literature (translated, obviously) when I was 9 years old.
