PO Box 716, Amherst, NH 03031-0716 USA
| There is currently 1 user online |
| 8 visitors in the last 24 hours |
|
PO Box 716, Amherst, NH 03031-0716 USA |
|
Static Electricity
|
 
|
To order, click on the ITEM NUMBER. To enter item numbers from the catalog use: Direct Order Entry |
 |
High Voltage Action
Using safe static electricity. Creates 10 inch bolts of lightning. Yet harmless enough for those "hair raising" experiments.
|
 |
Less Costly, Smaller Version
|
 |
Hand Driven Van de Graaff GeneratorThis hand-cranked model, with instructions and accessories, is essentially a turn-key operation. Set it on your lab table, invite a volunteer to start cranking, and then demonstrate the static electricity produced.The instruction booklet describes a host of experiments as well as explaining in detail how it works. 10-088 - Hand Driven Van de Graaff Generator..............$209.95 |
 |
Wimshurst MachineThis easy-to-use device consists of two high resistance plastic discs 25 cm in diameter with equally spaced metal sections. The discs are supported with two upright posts and rotate in opposite directions with a hand crank, producing substantial opposite charges which are deposited in the capacitors and on the metal electrodes. You can collect induced charge with the brushes and adjust the electrodes and Leyden jar capacitors for higher potential, thus generating sparks by lowering the system's capacitance. It is mounted on an attractive wooden base. Instructions include theory and background.10-069 - Wimshurst Machine..............$149.95 |
Volta's Hailstorm |
When near an active Van de Graaff Generator, the tiny conductive balls inside begin to bounce up and down. It looks as if the pieces are "hailing" as they skitter and rebound. The explanation lies in the fact that the floor and ceiling of the cage become electrically charged. The Van de Graaff builds up a charge by induction as electrons are transferred from the ceiling to the floor. Since the balls lying on the floor are now negatively charged, they are attracted by the positively charged ceiling. But when the balls hit the ceiling, their negative charge is neutralized and they become positively charged instead. Down they fall to the negatively charged floor where they become positively charged upon impact. Back and forth, upwards and down - a veritable "hailstorm in a teapot." This flurry of activity will last as long as the Van de Graaff generator is running.
Volta's Hailstorm includes:
|
 |
Leyden JarCharge it, dissect it - holds a charge for hours. Prove that a charge is stored in the dielectric insulator, not in the metal surfaces. Includes: 2 aluminum cans, polystyrene dielectric, el;ectrode with ball terminal, instructions with lab activities. Wt: 9 oz.LJAR - Classic Leyden Jar Cap..............................$29.95 |
 |
ElectroscopesShow how two similarly charged objects repel! This classic device features a molded plastic case with removable glass sides and a 10 cm square viewing area. Aluminum leaves hang from brass hooks for maximum sensitivity. Includes: 2 pair die-cut leaves; brass hanger; 2 glass panels, 10x 10cm; ball terminal; insulator; instructions. Wt: 10 oz.ESCOPE - Electroscope............................................$29.95 |
| |
|
PO Box 716, Amherst, NH 03031-0716 USA |
Site Index
|