Up: Glassmaking
Gilbert: 30 of 65
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Experiment 25. A shooting match.
Go outside and see which of you can shoot
his arrow to the greatest height and to the greatest distance.
Give each contestant five shots.
You can make fair estimates of the heights
FIG. 40
THE PEA SHOOTER IN ACTION
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if you shoot up beside a building or tall tree.
Experiment 27. To make a pea shooter.
Take a full-length piece of No. 6 tubing,
FIG. 41
BENDS
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smooth both ends and flare them out slightly. This makes an excellent
pea shooter. Try it with peas. Do you find that they come out with
great speed?
Experiment 28. A pea-shooting match.
Make a target on a piece of paper, hang it up
away from the wall or at the edge of the table, and shoot at it (Fig.
40). Do you find that the peas goes right through the paper?
Arrange a match with your friends and keep
track of the score as in Experiment 25.
Experiment 29. To make a good bend.
A good bend has the same diameter in the bend
as in the remainder of the tube (1, Fig. 41). It is rather difficult
to make
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