General purpose student bench meters with full-scale accuracy of ±2.5% and overload protection. Additional features: large 3" scale, external zero-adjust calibration, and fully enclosed plastic case with inclined meter face. -500-0-500 µA (20 µA).
A set of 6 glass spherical mirrors with back surface slivering. Three convex and three concave mirrors, all of 50mm diameter. Focal lengths are: 60mm, 100mm, 200mm, -60mm, -100mm and –200mm. Ages 13+
Gyroscope with Gimbal Cradle is an excellent, inexpensive apparatus, which is used to explore the mysteries of precession, inertial guidance, gyroscopic compasses, and stabilization. It is precision machined and balanced and runs smoothly with little vibration. Provided with pull string with handle, weight set, and support hook. A pendulum mounting is also supplied that can be used for investigating the…
Molded body with a central well for additional masses. A hole in one end of the body enables a cord to be attached. Dimensions: approx. 13 x 5 x 3.5 cm.
This durable carriage has a one-piece high-impact plastic body. The machined aluminum wheels and axles are mounted on hardened steel cone bearings for minimum friction and long life. Designed to be used with all types of inclined planes. 5 3/4” L. Ages 13+
A simple, effective apparatus demonstrates the heat conductivity of various metals. Four metal bars (Copper, Aluminum, Brass, and Steel) are mounted on a base with a hole for suspension. Every metal bar has the same cross-sectional area and its conductivity value is marked on the back of the base. The sensitive temperature indicators are attached to the front of each…
To observe heat transfer under different conditions by measuring the temperatures of the insulated containers before and after connecting them with the metal bar. Consists of two insulated containers, two thermometers, and a metal bar and an instruction manual.
Hero’s Engine demonstrates the principle of jet propulsion. The apparatus consists of a small Erlenmeyer flask with a rubber stopper and two tubes with tangentially oriented jets. A collar is provided around the flask to hang it above a heating source. When water boils inside the flask, steam escapes the jets and the flask spins.
