The first satellite was called Sputnik and was the size of a football. Now satellites are very big.
The communications satellite orbits the earth at 36 thousand kilometers. Television signals take quarter of a second to reach it and then another quarter of a second to bounce back to our television screens.
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DD had a bit of trouble with this and I'm wondering if its a normal expectation for a child in first term of year 1 to be able to read this or if they've given her wrong book by accident. It was a 32 page book with 6-8 sentences a page all at a similar reading level to above.