| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 2B30.00 | Atmospheric Pressure | | |
| 2B30.05 | lead bar | PIRA 1000 | |
| 2B30.05 | lead bar | 2B30.05 | A 1"x1" lead bar 35" long weighs 14.7 lbs. |
| 2B30.10 | crush the can | PIRA 200 | Boil water in a can and cap. As the vapor pressure is reduced by cooling, the can collapses. |
| 2B30.10 | crush the can | H-77 | Boil water in a can and cap. As the vapor pressure is reduced by cooling, the can collapses. |
| 2B30.10 | crush the can | M-326 | Boil water in a can and seal it. Or, pump out a can slightly, put it in a vacuum chamber and blow it back up. |
| 2B30.10 | crush the can | M-22d | Boil some water in a one gallon can, then stopper and pour water over it. ALSO - evacuate. |
| 2B30.15 | crush the soda can | PIRA 1000 | |
| 2B30.15 | crush the soda can | 2B30.15 | |
| 2B30.15 | crush the soda can | AJP 47(11),1015 | Heat water in the bottom of an aluminum soft drink can, then invert it over a pan of water. |
| 2B30.15 | crush the soda can | TPT 28(8),550 | Boil water in a soda can, invert it over water, and then calculate the thermal efficiency during the collapse. |
| 2B30.20 | crush a 55 gal drum | PIRA 500 | |
| 2B30.20 | crush a 55 gal drum | 2B30.20 | Boil water in a 55 gal. drum using three LP gas burners. A vacuum gage in the smaller bung hole is optional. The barrel crushes at about a half atmosphere. |
| 2B30.20 | barrel crush | Disc 11-16 | Boil water in a 55 gal drum, seal, and cool. |
| 2B30.25 | crush the can with vacuum pump | PIRA 1000 | |
| 2B30.25 | crush the can with pump | 2B30.25 | A 1 gallon can is evacuated with a pump. A pop can heated with water and inverted on cold water. |
| 2B30.25 | crush the can | Fd-1 | Pump on a gallon can to collapse it. |
| 2B30.25 | crush can with pump | Disc 11-14 | A one gallon can is evacuated with a vacuum pump. |
| 2B30.26 | blow up the crushed can | 16-2.2 | Take a deep breath and blow up a crushed can. |
| 2B30.30 | Magdeburg hemispheres | PIRA 200 | Evacuate Magdeburg hemispheres and try to separate them. |
| 2B30.30 | Magdeburg hemispheres | 2B30.30 | A set of Magdeburg hemispheres are evacuated with a pump. |
| 2B30.30 | Magdeburg flat plates | AJP 36(3),ix | Pump out flat plates separated by an o ring and hang weights. |
| 2B30.30 | Magdeburg hemispheres | TPT 3(6),285 | Separate the hemispheres by placing in a bell jar and evacuating. |
| 2B30.30 | Magdeburg hemispheres | Fd-2 | Evacuate Magdeburg hemispheres and try to separate them. |
| 2B30.30 | Magdeburg hemispheres | M-22b.3 | Picture of two Magdeburg hemispheres. |
| 2B30.30 | Magdeburg hemispheres | Disc 11-12 | An evacuated Magdeburg hemisphere set supports a large stack of weights. |
| 2B30.31 | Magdeburg hemispheres | M-323 | Pump out a cylinder at least 5" in diameter and lift a student. |
| 2B30.33 | Magdeburg hemisphere swing | PIRA 1000 | |
| 2B30.33 | Magdeburg hemisphere swing | 2B30.33 | Suck out per os two plexiglass plates with a 7.5" "O" ring in between. Hook to the ceiling, grab onto the bottom plate and swing. |
| 2B30.34 | Magdeburg tug-of-war | PIRA 1000 | |
| 2B30.35 | Magdeburg tug-of-war | 2B30.35 | Evacuate two plexiglass plates with a 12" "O" ring in between and hook a 2" rope to each plate. Have students do the tug of war. |
| 2B30.35 | Magdeburg hemispheres | AJP 48(11),987 | A fifteen inch set used in a pull off between a Clydesdale and small 4-wheel drive. |
| 2B30.36 | suction cups | PIRA 1000 | |
| 2B30.36 | suction cups | 2B30.36 | Lift a 6" cube of aluminum with a glass handler's suction cup. |
| 2B30.40 | soda straw contest | PIRA 1000 | |
| 2B30.40 | soda straw contest | 2B30.40 | Ask how far a person can suck. Start with a 3' tube, then try 6', 12', and 18'. |
| 2B30.45 | inverted glass | AJP 44(6),604 | A 2 m long Plexiglas tube is used for the inverted glass demo. More on dissolved gasses in liquid and cavitation using the same tube. |
| 2B30.46 | card on inverted glass modification | AJP 29(10),711 | Replace the glass by a tube of 50 cm and when half filled, it cannot be inverted. Explanation. |
| 2B30.49 | atmospheric pressure demos | M-322 | Four demos: 1) Hollow out a "suction cup" in the bottom of a cork so it will stay stuck at the bottom of a beaker as water is poured in. 2) Lift a heavy object by using rubber suction cups. 3) A smaller test tube is pulled into a larger water filled one as the system is inverted and the water runs out. 4) An aspirator is attached to a glass tube coming out of a sealed bottle of water. |
| 2B30.50 | lift a stool | PIRA 500 | |
| 2B30.50 | lift a stool | 2B30.50 | Place a square foot of 1/16" rubber on a chair and lift the chair by pulling up on a handle attached to the rubber sheet. |
| 2B30.50 | rubber sheet lifting chair | Disc 11-19 | Lift a chair by placing a thin sheet of rubber with a handle on the seat and pulling up. |
| 2B30.55 | adhesion plates | PIRA 1000 | |
| 2B30.60 | stick and newspaper | PIRA 500 | |
| 2B30.60 | stick and newspaper | 16-4.5 | Hit and break the protruding part of a stick covered with a newspaper. |
| 2B30.60 | inertia shingles | Disc 11-18 | Break a wood stick protruding from under a paper. |
| 2B30.70 | vacuum bazooka | PIRA 1000 | |
| 2B30.70 | vacuum bazooka | Disc 11-15 | Put a rubber ball in a tube, seal the ends, evacuate, and puncture the end with the ball. |
| 2B30.80 | pressure due to height | M-325 | Flames burn the same at ends of a tube when horizontal but with different heights when the tube is vertical. |