Track the direction of the wind with this sleek instrument. Wind vanes have a long history of ornamental use, but are also useful for scientific purposes. They are an important tool for weather observation.
• 6″ L x 6″ W x 6″ H
These radiation cans are useful for demonstrating solar energy and heat transfer. Just add water and a thermometer to each of the 2 cans, place them in the sun or near a bright light bulb, and watch the temperatures rise. One can is silver and the other is black.
• Sold in a set of 2
• 84 mm Dia. x 75 mm H
Rattleback, Plastic, Blue Color, Pk/10 (with Teacher’s Guide)
The Rattleback is a long, thin, half-elliptical shape formed in plastic. It has a slightly offset center of gravity, which causes the Rattleback to spin in a directional rotation of choice, usually counterclockwise. If you attempt to spin the Rattleback in the clockwise direction, strong preference will cause the Rattleback to “rattle” back and forth after few rotations, stopping and then reversing the rotation back to the preferred counterclockwise direction. The directional preference is so strong that if the Rattleback is at a standstill and you push down on 1 end, it will begin turning.
• Comes with a Teacher’s Guide
• Sold in a set of 10
• Color: blue
Ferrofluid is the astonishing liquid that becomes highly magnetized in the presence of a magnetic field. Comprised of nano-scale magnetic particles suspended in a transparent liquid, undisturbed Ferrofluid forms into a smooth pool. But when a magnet is brought close, Ferrofluid reacts in strange and fascinating ways. With Ferrofluid in a bottle, you can safely and easily play with this spectacular substance. Using 2 included neodymium magnets, you can spike, toss, drop, pull, and bridge the Ferrofluid. You can even make it dance.
• Comes with a Teacher’s Guide
• For ages 12 and up, not a toy
• 2 oz
• 2.11″ L x 1.13″ W x 3.53″ H
This compact, portable instrument is made of three main parts: an oil drop chamber, a microscope, and a power supply.
Using this product students can learn about velocity, gravity, and the exact charge of a single electron!
Use this item to provide an external magnetic field and to change the rate of magnetic flux passing through a coil. It consists of a plastic spool with windings of insulated copper. The end plates have brass-binding posts.
• Capacity: 10 amperes when used intermittently, 5 amperes when used continuously
• RoHS Certified
• Total number of turns: approx. 710
• Wire Gauge: 23
The Edu Steel Tongue Drum in C Major mode features an 8-in. hardened steel shell with 8 precise laser-cut tongues for accurate and consistent tuning. Learn about the history and meaning of the Steel Tongue Drum, further your knowledge of music theory and practice, and enjoy the pure, soothing sounds of the Chinese Drum. The relaxing tones will have you in tune with your surroundings.
Create amazing music— no music theory required! Played by beating or tapping with your bare hands/ fingers or mallets (included). Notes: C4, D4, E4, F4, G,4, A4, B4, C5 (C Major) Follow the included music sheets, or improvise and play your own songs and melodies Explore new composition methods Included: Mallets, cloth bag, note stickers, song cards, instructions
Type: Tongue Drum Material: Steel Diameter: 8 inches/19 cm Each drum comes with two rubber rods and 1 cloth bag for storage.
These bars are useful for student demonstrations, plotting magnetic fields, etc. They are made from magnetic steel strips. Each bar is painted red/red and stamped with N and S to indicate north and south poles.
• Supplied in pairs with cardboard separator and plated soft iron keepers
• 3″ (75 mm) L x 0.5″ (12 mm) W x 0.19″ (5 mm) thick
Single-tube self-excited Tesla coil, 12v power supply.
Can burn paper, can smoke.
Package Accessories: Tesla coil, a 12V1A power supply, an electronic glow tube
The Tesla Coil, an invention of Nicolai Tesla in 1891, is also called an electrical resonant transformer circuit that can produce high frequency alternating current electricity with very high voltages at low currents. Tesla Coils consist of two coils (primary and secondary), each with their own capacitor which act similarly to batteries, storing energy. The two coils are connected by a spark gap. When electricity enters the system through an outside power source, the primary coils capacitor saves the incoming energy until its capacity is reached, then the current streams into the primary coil. Once all the energy has left the capacitor, the current is being pushed through the spark gap (a gap of air between two electrodes) into the secondary coil. The two coils will then pass the energy back and forth. At the top of the coil, a top-load capacitor concentrates the current and eventually can produce ‘lightning’ – a visual representation of energy! While Tesla coils today do not serve any other purpose than to be an educational tool to demonstrate scientific principles, a version of the coils is still being used in certain devices.
The device can be used to demonstrate scientific principles, such as: