Looks Can Be Deceiving
SCIENTISTS tell us that the earth is round.
It is a big ball， they say， about eight thousand miles
wide. It is spinning around like a merry-go-round， and
is sailing through space at a speed of 18~ miles per
second， or 66，600 miles an hour. It revolves around the
sun， making a complete round trip every year. The
first time we hear these facts they are hard to believe，
because they do not seem to match the way things
look. If we stand outdoors and took around us， what
we see of the earth doesn t look like a ball at all. It
looks more like a flat cake of soil and rock， with a
smooth surface where we see plains， and with bumps
and wrinkles where we see hills and mountains. We
don t feel the earth moving or spinning. In fact， it
seems to be standing perfectly still. And when we
watch the sun， as it rises in the east， climbs across the
sky， and then sets in the west， it looks as though the
sun is going around the earth， rather than the other
way around.
But things aren t always the way they seem. The
earth/s round， does spin， and does revolve around the
sun. For thousands of years this truth was hidden from
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