Here's an idea on how to launch the rockets on command:
1. Remove coke bottle cap.
2. Drill a small hole through
both sides of the area with the threads.
3. Drop in mentos.
4. Quickly place a cork in the nozzle/neck, and hold it there.
5. Find a nail with a flat head, and tie some string around it just below the head.
6. Carefully stick the nail through the holes in the bottle and the cork, like this:
It will act as a pin and prevent the cork from popping out.
7. Shake bottle.
8. Place rocket on some sort of sturdy thing to use as a launchpad (I'm planning to use one of those cinder blocks with the holes in it).
9. Pull on the string to pull out the nail. The cork will be pushed out by the pressure in the bottle, and the rocket should launch!
WARNING: This idea is untested, and there is a chance that there will be a problem when the nail is halfway out.
BTW, Coke
and Mentos are on sale at our local store!
Next month, we shoot for the moon!
