"power+supply"

Illustrates Defining Characteristics of Fingerprints

Identify Individual Friction Ridge Patterns

This economical demonstration solar car can be powered by a solar cell or a rechargeable battery (AA size, not included).

Make your herbarium mounts last with this top-quality stock. The white paper has a high rag content that is ideal for mounting purposes. Size: 29 x 42cm. Package of 100. Thickness of .0105 inches.

These steel pins are coated with a corrosion-resistant finish and have a yellow epoxy head.

High-quality supplies in a simple package.

Poster Putty offers a temporary, reusable alternative to nails, screws, staples and glue.

Build five different power supplies by connecting clip leads to one of the five color-coded terminals.

Dual purpose for Dual Benefits

Basic apparatus for providing contact, power supply and support to a germanium crystal on a circuit board in experiments on the Hall effect or on conductivity. Includes an integrated, adjustable constant current source to provide the current through the sample, a measuring amplifier with offset compensation for Hall voltages and heating to raise the crystal to as high as 170 °C, also featuring temperature regulation and a switchable display showing Hall voltage, sample current, sample voltage or temperature.

A Great Classroom Solution.

Makes any container tamperproof.

A Clean, Quick, Easy Way to Make Footprint Impressions

Bring Cartridges into the classroom safely.

The MM-450, PocketMicro™ is a powerful 20 to 60× power pocket microscope with an extremely lightweight and portable design. This pocket microscope features a built-in LED light that provides a bright, clear image.