![](https://www.google.com/images/icons/product/drive-32.png)
Fog Tornado
An ultrasonic mist generator creates fog, a fan draws air upward, and directional vanes at the bottom excite the vortex, creating a tornado.
![](https://www.google.com/images/icons/product/drive-32.png)
Sparky
A low-voltage high-current power supply is connected to two rails. The circuit is completed by a rod laid across, whose magnetic field interacts with the array of permanent magnets beneath.
![](https://www.google.com/images/icons/product/drive-32.png)
Fog Ring Shooter
An ultrasonic mist generator creates a fog within a small volume. The volume is reduced by applying an impulse and a ring vortex, entrained with fog, emerges.
![](https://www.google.com/images/icons/product/drive-32.png)
Lissajous Laser
A laser beam reflects off two mirrors and then onto a glow-in-the dark surface to create beautiful patterns.
![](https://www.google.com/images/icons/product/drive-32.png)
Polarizing LCD Screen
A polarizer sheet has been removed from a typical LCD screen allowing its content to be displayed only through a polarizer.
![](https://www.google.com/images/icons/product/drive-32.png)
Microwave Gas Ionization
Neon bulbs are arranged on the tray of a microwave. When it is turned on, the bulbs light.
![](https://www.google.com/images/icons/product/drive-32.png)
Bernoulli Balloon Hair Dryer
A hair dryer's heat is disabled and then it is pointed generally upward to levitate a balloon or light ball.
![](https://www.google.com/images/icons/product/drive-32.png)
Inductive Shocker
A battery (or generator) is hooked up to a circuit with a transformer coil. A change in current increases the voltage.
![](https://www.google.com/images/icons/product/drive-32.png)
Aluminum Plasma Cutter
A circuit is completed at the junction of a graphite pencil "lead" and aluminum foil, creating plasma and cutting action.
![](https://www.google.com/images/icons/product/drive-32.png)
Magnet Dance
Pencil Sharpener
A cup with a magnet in it is glued upside-down on a pencil sharpener.
![](https://www.google.com/images/icons/product/drive-32.png)
TV Rainbow Magnetic Field
A TV is set to a blue screen. A magnet is manipulated to show its field lines in rainbow colors.
![](https://www.google.com/images/icons/product/drive-32.png)
Stepper Sounds
A stepper motor is hooked to a speaker. Turning the shaft produces audible frequencies that correspond to the rotation.
![](https://www.google.com/images/icons/product/drive-32.png)
Magnetic Music
A strip of tape that has audio recorded onto it is rubbed against the head of a tape player.
![](https://www.google.com/images/icons/product/drive-32.png)
Musically Marching Styro Beads
Small styrofoam beads dance in neat rows in the nodes of an acoustic standing wave.
![](https://www.google.com/images/icons/product/drive-32.png)
Human Battery
Two dissimilar metals are connected to a micro-ammeter. Completing the circuit with an electrolyte initiates electric current.
![](https://www.google.com/images/icons/product/drive-32.png)
String Thing
A blower creates high velocity air which carries a piece of yarn into its path. The yarn is looped so that it is constantly flowing through the tube and into the air.
![](https://www.google.com/images/icons/product/drive-32.png)
Pitch Bending Music Generator
The motor of a tape player is hooked to a hand crank generator. The music changes with the voltage created.
![](https://www.google.com/images/icons/product/drive-32.png)
Ring Launcher
A coil of wire connected to alternating current creates an oscillating magnetic field which induces an opposing magnetic field in a conductive ring, causing it to launch.
![](https://www.google.com/images/icons/product/drive-32.png)
TV Oscilloscope
The horizontal yoke of a TV is connected to a microphone or other audio device to create a corresponding wave pattern on the screen.
![](https://www.google.com/images/icons/product/drive-32.png)
Elastic Cord Vibrations
An elastic cord is connected to an appliance that vibrates, creating standing wave nodes and antinodes that vary with tension, length, or driving frequency.
![](https://www.google.com/images/icons/product/drive-32.png)
Big Head Fresnel
The Fresnel lens from an overhead projector is fastened to an upside-down garbage can to make a helmet that makes your face huge.
![](https://www.google.com/images/icons/product/drive-32.png)
Drill Generator
Create electricity with the turn of a crank! Have it power something, show you its voltage, or both!
![](https://www.google.com/images/icons/product/drive-32.png)
Slinky Sounds
Did you ever listen to a slinky? Like really listen? The sound may remind you of an old science fiction movie!
![](https://www.google.com/images/icons/product/drive-32.png)
Polarizing Mosaic
Rotate one polarizer with respect to another and beautiful colors will emerge from transparent-seeming film.