How High Is Your House - Enid Blyton 2nd Holiday Book 1947
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How High Is Your House - Enid Blyton 2nd Holiday Book 1947
" A kind heart always brings its own reward," said Mrs. Lee.
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- Courtenay
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Re: How High Is Your House - Enid Blyton 2nd Holiday Book 19
Hey, that's pretty clever, except it does presuppose you have a nice large expanse of flat lawn to measure shadows on!!
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It was a nuisance. An adventure was one thing - but an adventure without anything to eat was quite another thing. That wouldn't do at all. (The Valley of Adventure)
It was a nuisance. An adventure was one thing - but an adventure without anything to eat was quite another thing. That wouldn't do at all. (The Valley of Adventure)
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Re: How High Is Your House - Enid Blyton 2nd Holiday Book 19
Then you can always use the mathematical way.
Height of tree = distance from tree x tan(x°)
e.g. Height of tree = 50 feet x tan(40 degrees) = 50 feet x 0.84 = 42 feet
Height of tree = distance from tree x tan(x°)
e.g. Height of tree = 50 feet x tan(40 degrees) = 50 feet x 0.84 = 42 feet
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Re: How High Is Your House - Enid Blyton 2nd Holiday Book 19
I remember doing that in maths exercises at school, but couldn't quite remember the formula (and you do rather need a theodolite to make it work in real life).
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It was a nuisance. An adventure was one thing - but an adventure without anything to eat was quite another thing. That wouldn't do at all. (The Valley of Adventure)
It was a nuisance. An adventure was one thing - but an adventure without anything to eat was quite another thing. That wouldn't do at all. (The Valley of Adventure)
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Re: How High Is Your House - Enid Blyton 2nd Holiday Book 19
Which you can make yourself easily enough.Courtenay wrote:...and you do rather need a theodolite to make it work in real life.
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Re: How High Is Your House - Enid Blyton 2nd Holiday Book 19
Here's a better one: https://www.wikihow.com/Make-a-Simple-Theodolite" onclick="window.open(this.href);return false;
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