it a Bird?
In order to make his glider turn, the designer of the Bird
Glider mimicked which feature found on a real soaring bird?
a) the long beak
b) the three-foot wing span
c) the feathers at the wing tip
d) the hollow bones
What was historic about Paul MacCready's invention, the Gossamer
To keep the 100-foot Pathfinder flying, its solar cells must
collect the same amount of energy as needed by
a) a 747 jet.
b) a battery-operated toy.
c) two automobiles.
d) four hairdryers.
Soaring at 65,000 feet, what might the 250-foot flying wing,
Helios, eventually be used for?
in the Sky
Why is the Pointer such a useful surveillance plane for the
a) It can be launched almost anywhere.
b) It can use an infrared camera to see troop movements at
c) It can cruise quietly enough to avoid being noticed.
d) All of the above
The Mars glider must be able to fly in an atmosphere much
like the air at what altitude here on Earth?
a) 100 feet
b) 10,000 feet
c) 100,000 feet
d) 1,000,000 feet
to the Air
Why do male and female dragonflies often fly in tandem pairs
after they mate?
What biological feature do scientists like Jim Marden believe
were the evolutionary precursor to wings?
What is the biggest design challenge facing engineers of small,
controllable flapping flyers?
Where does Alan need to place his hands (or his head) in order
to keep the Walkalong Glider aloft? Why?