Describes different kinds of submersibles, ships that can go underwater, including submarines, bathyscaphes, and the ABE or Autonomous Benthic Explorer.

Describes special machines such as snowmobiles, snow plows, ice breakers, and tundra buggies which are used to remove or travel on ice and snow.



Briefly describes some unusual land vehicles, such as all-terrain vehicles, Indy cars, jet cars, dragsters, tanks, and solar cars.

Briefly describes some of the machines that fly in the air, including the Wright brothers' flying machine, helicopters, ultralights, dirigibles, hurricane hunting planes, supersonic airplanes, and others.