you could design the first air-schoolbus of the future! My Prediction. What Happened. Send It to ZOOM. TM! Tell us about
r e d i l G p o o H
rips of paper. long. 1 Cut two st d 5 inches n a e id w h 1 inc d Make one strip ch wide an in 1 p ri st d n Make the seco
eed What You N
• paper • ruler • scissors • pencil le, plastic • nonbendab
ng. 10 inches lo
e ends hoop. Tape th a to in p ri st r pape a small hoop. d an 2 Curl each p o o h ig b you have a together. Now raw.
drinking straw • tape
the st to one end of p o o h l al sm e 3 Tape th
Scoop Engineering , it doesn’t go
plain straw If you throw a aper hoops, hen you add p w t e Bu r. fa ry ve r. That’s becaus through the ai es id e gl lik w ra — y st the that fl wings. Things e lik t ac t s Bu op the ho l have wings. d airplanes—al . insects, birds, an ape and size all the same sh t s no e nd ki ar nt gs in re w diffe n be better for ca gs in e w t id en w , er Diff has long ample, an eagle of flight. For ex rplane has lp it glide. An ai wings that he that move up small flaps wings with anging the plane. Try ch rn tu to n w do and es it fly glider. How do ur yo on gs in the w wings? with different ZOOM
INTO
w. end of the stra r e th o e th n o ig hoop all hoop. 4 Tape the b p with the sm u s e n li p o o big h Make sure the w, dle of the stra id m e th in r e ea Hoop Glid w it gently lik 5 Hold your o r h T t. n o fr hoop in g to get the han with the small e ic t c a r p e take som spear. It might your glider fly? s e o d r fa w o of it. H
on ™
Change your glider so that it flies the longest possible distance.What happens if you make the straw smaller? What happens if you change the size of the hoops? Or, what happens if you add a third hoop? Choose one thing to change (that’s the variable), and make a prediction. Then test it and send your results to ZOOM.
Sent i n by Stephanie C. of Mi lton, NH
ENGINEERING is a partnership of WGBH and National Engineers Week. National Engineers Week 2002 chairs: DuPont and the American Society
to school Imagine going day the air! Some travels through ywhere. “air-cars” ever you might see can have wings that Air-cars will how fast depending on change shape, you need e That’s becaus you are flying. traveling g shape when one kind of win a and you need at low speeds, speeds. gh hi shape for g in w nt re ffe di materials designing new Engineers are ings. self-bending w to make these sign the you could de Engineers like re! bus of the futu first air-school
