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.
Who else is looking forward to the summer? Whether you call your summer break a ‘vacation’ or a ‘holiday’, there is a good chance that some of you are heading for the beach.
Did you know that around the world there are hundreds of artificial beaches. Some are near the coast, but others are miles away from the seaside – perfect for those who don’t or can’t travel far.
City beaches are sometimes called ‘urban beaches’ like the one above in Cologne, Germany. This can involve the delivery of hundreds of tonnes of sand, to a place where there is no sand.
There is no sand here, but it is an oasis of fun in the middle of the city. For many years, this area was run down and neglected, but after a regeneration project, new life is blossoming. Who wants to jump off this diving board?
This beach is all about relaxing and digging your feet into the sand. No pool (and the chilly Thames is certainly no alternative!) but great views over London, and the South Bank centre often has great activities for kids on offer. Check out their website for details.
The capital city of France can get really hot and muggy in the summer months, so what better way than to cool off at an urban beach? Check out the huge showers in the picture!
In the south of the city of Zagreb, this park was brought back to life after many years of neglect. It is a popular spot for locals and tourists alike, hoping to cool off in the hot Croatian summers.
Baby Plage, Geneva
This might be the MOST fun urban beach for kids in the world. The huge trees are festooned with old tyres and bicycle tubes, knotted together to create ladders and swings.
Ok, this is a bit of a cheat, cause it isn’t an urban beach, but it is the biggest swimming pool in the world, so we had to include it! It is 8 hectares, and holds 250 million liters of water. That is equivalent of 6,000 familiar 8m long pools! It is part of a privately owned complex in South America.
Now, don’t tell your parents that we showed you this, and don’t try it out at home, but how awesome does this look? We can’t help thinking that this would be VERY messy, but it looks so relaxing and fun!
The artist Justin Kemp created home sandbox for under his desk.
This was built in Japan in 1993 – an artificial beach with a retractable roof. It was not commercially successful and closed over 10 years ago. Which is a real shame, because it looks really amazing.
Featured Image – Cologne KM689 Beach Bar in Germany
Hiccups are caused by the diaphragm (pronounced DYE-uh-fram). This is a large, dome-shaped muscle that sits at the bottom of your chest cavity, below your lungs. When we breathe in the diaphragm tightens, helping to pull air into the lungs, and when it relaxes it forces the air back out again. Sometimes the diaphragm becomes irritated and instead of tightening smoothly it does it in a jerky way, which makes air suddenly rush into your throat. This air is stopped when it hits the voice box and makes the opening between the vocal cords close very suddenly. This is what produces the sound of the hiccup.
A couple of nights ago I was feeling really, really tired, so I went to bed early. I slept soundly, without even dreaming, until about 5am, when I woke up. It felt like I’d only been sleeping for about 5 minutes! After that, I fell back to sleep but had lots of vivid dreams and when I woke up a couple of hours later, it felt like I’d been asleep for a long time. After all that I still felt well-rested and was ready for the day.
All this made me wonder – what IS sleep? Why is it that some nights we feel like we’ve had a really good nights’ sleep, while other nights we still feel tired when we wake up in the morning? Here’s what I’ve discovered about sleep…
