Science, Nature and Tech

Is The Great Wall of China Visible from Space?

The idea that the Great Wall of China can be seen from space has been around since at least 1938 and is still popular today. It certainly seems plausible that such a large, linear structure would stand out from the surrounding landscape, but it’s actually not true.

Alan Bean, the fourth man to walk on the moon, said in 1969

“The only thing you can see from the moon is a beautiful sphere, mostly white, some blue and patches of yellow, and every once in a while some green vegetation. No man-made object is visible at this scale.”

But if you can’t see the Wall from the moon, how about somewhere closer to Earth? The International Space Station (ISS) maintains a low earth orbit of between 330-435 km above our planet’s surface.

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Science, Nature and Tech

LETS Swap!

Pokemon cards, Moshi monsters, jelly stickers, friendship bracelets – at some point over the last few years my kids have swapped all these things. And in return they get good stuff back.

Wouldn’t it be great if you could go into a shop and, even if you had no money, you could still swap something you had for something you want?

In communities all over the world, people are doing just that. Or something very like it.

Local Exchange Trading Schemes or LETS for short, enable people who live near each other to swap their skills and receive goods and services without having to pay a penny.

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Home, Health & Style, Uncategorized

Ducklings in Disguise

You know the story of the Ugly Duckling of course, who didn’t look like his family but grew into a beautiful swan? Well, this is a true story of three little chicks who are going to grow into beautiful ducks, as told by Susannah Leigh.

It all started when my friend Nic’s very favourite chicken, Rosie became broody. Rosie laid some eggs and sat on them very carefully for a very long time. But the eggs didn’t hatch and Nic realised that they were probably never going to. Sometimes they just don’t.

Poor Rosie – all that patient waiting for nothing.

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Science, Nature and Tech

Science News – Solar Storms Due to Hit Earth

This weekend the Earth is due to be hit by a pair of solar storms that might affect radio and satellite communication. But how and why does this happen?

What Does Solar Mean?

 

 

 

 

 

 

 

 

 

 

 

 

 

Anything that is related to a sun is commonly described as being solar. Our sun is a typical medium-sized yellow star which is about 5 billion years old. Its surface temperature is about 5,500°C, but even that isn’t as hot as its superheated centre. Some parts of the sun’s surface are cooler, with a temperature of between 2,700–4,200°C, and these appear darker when viewed through specialised telescopes. These cooler patches are caused by fluctuations in the sun’s magnetism and are called sun spots.

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Travel

Exploring Australia – Marvellous Melbourne

melbourne lanes

Continuing on my Australian adventure, I thought I’d tell you about Melbourne, my new favourite city. Whilst I’m in Australia, I’m going to be staying here in Melbourne, then moving on to Sydney next week. Sydney, I know about; there’s a big harbour, famous for its bridge and its opera house. But Melbourne? Before I came here, I didn’t know a thing about it.
 The first thing I found out is that Melbourne is in the South East of Australia, in the state of Victoria. It’s on the coast and like Sydney is a harbour city. The climate in Melbourne can be a bit like the UK; it changes often and can start raining out of nowhere! Although it gets hotter than the UK, it doesn’t get quite as hot as the rest of Australia.

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