Science News – Do Black Holes Exist?
For years black holes have captured the imagination of the public as well as physicists, featuring heavily in science-fiction books and films. But now it seems that they may not exist after all.
The Best Urban Beaches
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.
Islands Brygge, Copenhagen, Denmark
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?
Festival of Love Beach, South Bank, London UK
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.
Paris Plage, France
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!
Bundek Lake, Zagreb, Croatia
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, Switzerland
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.
San Alfonso del Mar, Chile
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.
BONUS BEACHES
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
Shooting stars, Weather, and Rocks falling from the Sky!
What do shooting stars, weather and rocks falling from the sky have in common? Are you wondering whether we have gone mad asking such a question? Do rocks ever fall from the sky? Of course they do! You might know them better as “meteorites”, and they are meteors, or rocks from outer space, that fall down to the earth. And what does that have to do with weather? It’s not like they come down like rain! And before you say to yourself “meteor shower”, remember that a meteor is actually a shooting star, a space-rock that burns up in the Earth’s atmosphere. Related, yes, but weather, no.
The weather connection is through another word, generally used to mean “study of the weather”. That word is “meteorology”. As you can see, all three have something in common – the word “meteor”.
So what is this word, and how did it come to mean these different things?
Meteor came into English through French in the late 15th century. In French it was meteore. Very similar, you might think. Does this mean that it is a French word. Not at all. The next question we must ask ourselves is where did French get it from? The answer is from Medieval Latin meteorum, which meant “things in the heavens”. But this is not the end of the tale. Latin took the word from ancient Greek, and in Greek we can analyse the word to see what it really means.
The Greek word μετέωρα (meteora) can be broken into two parts: meta, which means “over, beyond” and aora, which comes from the verb αείρω/ αίρω (aeiro, airo), which meant “to raise, lift up”. Even today, in Modern Greek, αιωρείται (aioreitai) means “it hovers”. All this means that the original meaning of the word was “thing that is raised in the air”. And even in ancient times this developed to mean “things in the sky” and gradually came to have the meaning it does today.
Another interesting point is that the word “air” is in fact from the same root as αείρω (aeiro), which makes it a distant cousin, or cognate, of “meteor”.
Did you know:
One of the largest and most famous meteor craters is to be found in northern Arizona, desert of the U.S. It is 1,200m wide, 170m deep and calculated to be created 50,000 years ago! It is more commonly known as the Barringer Crater.
Title Photography: Mike Lewinski 2013
Homemade Mother Day Gifts – Written by You
