This Radiometer is made from a glass bulb from which much of the air has been removed. Inside the bulb, on a low-friction spindle, is a rotor with 4 vanes. Each vane has one blackened side and one silvered side; ...

Measures 20” x 28” (or 28” x 20”) Printed on Italian archival, textured paper. Shipped rolled in a protective case.

This bag contains approximately 100 grams of pellets made of a polymer called polycaprolactone (PCL). They can be melted into a putty-like consistency, formed into a shape, and cooled to become a rigid object. PCL melts at only 60 °C ...

Measures 20” x 28” (or 28” x 20”) Printed on Italian archival textured paper. Shipped rolled

Tiger’s eye is a mineral in the quartz family that is known for its optical effect, called chatoyancy. The hallmark of the effect is a linear sheen that runs perpendicular to the fibrous structure of the crystal. The silky, fibrous ...

We prefer to avoid disposable, plastic tweezers whenever possible. That's why we keep these stainless steel, angled tweezers in stock. They've become an essential tool around the shop for all sorts of odd jobs. These feature a 45° angle, and ...

The small flashlight not only does its illuminating job exceedingly well, it is also surprisingly durable. We've had a few of these tumbling around the workshop and outdoors for over a year now and they still work good as new. ...

Three fossilized urchin spines displayed in an acrylic case. A perfect addition for your fossil collection. Images are representative of the specimens you will receive. *Last image from the Bulletin of the Museum of Comparative Zoology at Harvard College, 1863.

This material has been engineered to be chemically and mechanically similar to the surface material of CI chondrite asteroids based on the Orgueil asteroid. Orgueil is a carbonaceous chondrite meteorite that fell in southwestern France in 1864. It is one ...

Ever wanted to own something radioactive? Everything included in this box is radioactive. Seriously. This box includes 5 items that are slightly radioactive including both naturally-occurring & human-made items. These items are safe to handle since the radioactivity is below ...

This nail was created prior to the Atomic Age and therefore contains no radionuclides from human-caused background radiation. Since the first atomic bomb detonation—the Trinity test in 1945—over 500 atmospheric nuclear bomb detonations have been performed around the world. Lingering ...

This is a processor chip that includes the logic and microarchitecture to perform complex tasks in an instant, an astonishing achievement considering it is made entirely of materials found in nature. You may know that electronics contain silicon refined from ...

A sampling of our favorite intriguing scientific items for your store or gift shop. $50+ value Sample Kit includes: 1 fossil 1 tool 2 artifacts 2 interesting materials You may receive several of the items shown in photographs and several ...

Did this light travel 13 billion years to wind up on your sweatshirt? Yes. Yes it did. Wrap yourself in the universe. This sweatshirt features James Webb Space Telescope's first image on soft, but durable polyester fleece. This classic unisex-fit, ...

Each piece of this puzzle is a pentomino. A pentomino is a shape made up of five smaller squares. There are 12 differently-shaped pentominoes in total. See if you can fill the tray perfectly with the pentominos. How many unique ...