How would you like to live in a house that bobs up and down like a cork in a bowl of water? Some families live like this because it is the only kind of house they can afford. Others find that a house…
The astronomer scans the depths of space To find an unknown star. But how will he know its distance? Mathematics soon tells him how far! The engineer plans a gleaming bridge, To span a broad, blue…
It might be fun to have a house for each season. How about a bamboo house with a thatched roof for warm, rainy spring days? On hot, dry summer days, a house with thick, mud walls is a cool place….
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