Ruby: How come the same strings have different hashcodes?

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Published on 2010-04-22T01:36:57Z Indexed on 2010/04/22 1:43 UTC
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test = 'a'
test2 = '@a'.slice(0)
test3 = '@a'[1]

puts test.hash
puts test2.hash
puts test3.hash

100
64
97

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