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IT CAN’T BE TRUE! 191
If a skydiver lies “flat” on the air, with arms and legs outstretched, he could reach a top speed of about 122 mph (195 kph)—as fast as a gyrfalcon when it dives. into the body to become more 200 mph (320 kph)—the same as
FAST FACTS If a skydiver pulls his limbs aerodynamic, speeds reach a diving peregrine falcon.
It would take 19 minutes to fall 3,950 miles (6,357 km) to Earth’s core. The mantle is about 1,795 miles (2,890 km) thick and is mostly solid rock, parts of which can very slowly deform and move. As the person approaches the center of Earth, the gravitational force would less
US_190-191_309600_Fall_Through_Earth.indd 191 3,950 miles (6,357 km) 20/12/17 5:31 pm
