"SCIENTIFIC HATCHERIES"

Studying dynamic tension has never been easier with this simple form truss kit. The kit includes a half-meter truss with hooks on both sides, V-shaped clamp.Recommended stand and rod, item 470137-892 Required but not included are masses and spring scale.

Made of brass, interchangeable on pillars, fitted with insulators of ebonite on base. Spheres 5cm diameter, Cylinder 12.5 x 5cm diameter, Cone 10 x 5cm length x diameter.

An assortment of 150 compression and extension springs ranging from 15 to 300 mm in length, 4 to 18 mm diameters, and 16 to 32 swg in wire thickness.

Comprised of a thick plastic base with four rubber feet, along with with an 18cm diameter aluminium plate with an insulating handle.

In these digital compound instruments, a video camera is built into the traditional microscope chassis.

Bony fish first evolved during the Paleozoic era, over 400 million years ago. This fossil replica represents a mold of a ray-finned fish that died and was buried in the ocean.

This pulley is ideal for use with photogates sensors. Pulley is mounted on free-running ball bearings with minimum friction. Mounted on a removeable rod of 150 x 10 mm diameter.
Diameter 65 mm with spokes
Ideal for use with Photogates

With this stainless steel mirror, students can perform experiments using light rays with plane, concave, and convex mirrors all in one convenient and easy to use tool. The flexible metal curve can be switched to convert from a concave to convex mirror.

For demonstrating the differential expansion of two metals as shown by the curvature produced when the bar is heated. Each metal band is 200 x 15mm and riveted together.

Ammonites grew their shells from calcium carbonate and grew constantly throughout their life span. A relative of octopi and squids today, ammonites swam through the open ocean, preying on smaller marine animals.

This life size replica of a human skeleton is painted to show the points of muscle origin in red and insertion in blue along the left side. Quality hardware allows easy movement of major joints and 3 part skull is removable for closer study of jaw and teeth.

This laboratory set includes a retort base made of corrosion resistant, powder coated steel, a stainless steel rod featuring a 10 mm x 1.5 mm metric thread, a support ring and a three-pronged coated clamp.

Tough vinyl lab aprons are resistant to lab reagents, acids, alkalis, oils, and grease.

A dramatic visualization of air pressure. This 1000 ml bottle has a balloon attached to its neck and an additional hole in its base fitted with a rubber stopper. You cannot inflate the balloon with the stopper in place, but remove the stopper and the balloon easily inflates. Replace the stopper, fill the bottle with water, remove stopper and Whoosh! – a geyser erupts!

This model shows the internal structure and operating principles of an air cooled two-stroke engine. All parts are aluminum and plastic. Ignition is shown via a small bulb. Carburetor and fuel supply are also sectioned. Hand crank is provided for manual operation. Mounted on a base.

These TPX jugs have a non-drip spout and excellent thumb grip on their handle making them perfect for every laboratory and classroom setting.