Untitled Document
 In
winter, a lot of snow falls in Korea. On a snowy day, many children
go out and make snowmen. They often compete with each other to make
the biggest snowman. But can you believe
that some scientists compete with each other to make the world’s
smallest snowman? Recently, scientists in England won the competition.
Scientists at the National Physical Laboratory in London succeeded
in making the smallest snowman in the
world. So, how small is it? Don’t be surprised. It is only 0.01mm,
which is 1/5 the width of a human hair! The
tiny snowman was not created using balls of snow. Instead, it was made using
two tiny beads.
The pieces were welded together with platinum. The scientists
used an ion beam to carve the snowman’s eyes,
nose, and smile. The world’s smallest snowman is the result of the manipulation of nanotech particles. Isn’t it cute?
But you have to use a microscope to see him! |
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