Motion sickness is also known as travel sickness, sea sickness or air sickness. It can happen in a number of situations, not all of which involve movement, and is a very unpleasant sensation. As part of our Have You Ever Wondered series, our Science Editor Sam finds out what causes motion sickness, and if there is anything you can do to prevent it.
My view is hazy, but I can work out the blurry shape of a nurse, standing by my bed. My eyelids shut; the light was stinging my eyes.
“Hello?” The voice is soft. I decide to answer.
“Hello,” I answer.
“I’m Josie,” says the nurse, pulling up a chair beside the bed. “What’s your name?”
“Kieran,” I reply, chewing my lip.
“Well, Kieran, you’ve been through a lot,” she says. She feels my forehead. “You had a raging fever you know. How do you feel now?”
You may think that combining spaghetti and ice [cream], that it must have been invented in Italy, and you are almost right. It was invented by a man called Dario Fontanella, the son of Italian immigrants in Germany.
Topper. I swear that pony could scowl.
It was my week to ride him, and I had just hauled him all the way down to the outdoor school and stood him in the middle to check his girth and stirrups. As I reached under to tighten up the girth he turned his head toward me and eyeballed me, then stepped over with his nearside foreleg; and stamped on my left foot.
I hissed a very rude word and frantically pushed him to move him off. My foot sunk into the woodchip surface with his heavy weight crushing it down. By now he was still looking directly at me, so I started punching his shoulder to try and get him to step off. Today’s teacher was a crosspatch I have no fond memories of; if she had found out about it I’d have been bawled out for having my foot in the wrong place or something.
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
