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Why does the spider weave a web?
Why is the tortoise able to retract its head into its shell?
Why can’t we feel the Earth’s rotation?
Why…
Why this? Why that? There are many questions one can easily ask but hard to get the right answers. Come to think of it, there are many scientific mysteries hidden in our everyday life.
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$9.50 $7.50
$9.50 $7.50
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