- Cape student sues, accuses school officials of slamming her to ground multiple times (04/28/16)48
- Neelys Landing man shot, killed by highway patrol trooper after traffic stop (05/01/16)43
- Bob Evans restaurant in Cape Girardeau among chain's 21 closings (04/26/16)9
- Missouri House votes to allow concealed weapons without permits (04/28/16)8
- Police report filed, but no charges in incident at Cape Central (04/29/16)40
- 2016 All-Missourian Boys Basketball (04/29/16)
- Statement: Man says copsí good work drove him to grow his own marijuana (05/01/16)1
- Two hurt in motorcycle wreck on Interstate 55 (04/25/16)1
- Senator introduces bill for I-57 that would connect Sikeston with Little Rock (04/28/16)4
- River Ridge Winery changes hands (05/02/16)
Hooked on Science: Make a potato gun
Using a few materials from around the house, you can create a potato gun.
* 36-inch wooden dowel rod
* 24-inch copper tube
STEP 1: Push one end of the copper tube into the potato. Pull the tube out of the potato.
STEP 2: Push the other end of the copper tube into the potato. Pull the tube out of the potato.
STEP 3: Use the wooden dowel rod to push one of the potato plugs about 6 inches into the copper tube.
STEP 4: Leaving the dowel rod in the copper tube, point the other end into the sky, and quickly push the dowel rod farther into the copper tube.
As you pushed the dowel rod farther into the copper tube the volume of trapped air decreased, while the pressure increased. This propelled the potato plugs out of the tube into the air.
Jason Lindsey is a science outreach educator with Hooked on Science. Check out his website www.hookedonscience.org for webcasts and experiments that might get you hooked on science. Send him your science questions at jlindseyhookedonscience.com.