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Mars Rovers ...
... come in large and small sizes. They often
have fun names that are meant to express the
spirit of human exploration. On the left, you
see
"Spirit," "Sojourner"
"Curiosity"
is on the right. "Spirit" spent 6
years exploring Mars! "Curiosity" is the
newcomer: It only landed on the Martian
surface on August 6, 2012.
is in the middle, and
Vibration Technology
DID YOU KNOW?
What looks like a construction site is actually a
plate compactor race. This contest is held every
year in Eddelak, Germany. With a plate
compactor in tow, each participant has to travel
along a 100-meter course — across hills, barriers,
high-speed straightaways, sand, and gravel. The
winner gets to call himself champ!
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