This is a new generation of phosphorescent powder that can glow 10x brighter and 10x longer than traditional glow-in-the-dark materials. It glows bright enough to be seen in daylight, lasts up to 30 hours, and can be recharged indefinitely. It...

WE LAUNCHED THIS PRODUCT ON KICKSTARTER AND IT WAS FUNDED OVER 200% If you compress any amount of mass, it becomes denser. If you compress it enough, it will become so dense that light can no longer escape it—this size...

Minié Ball: The Minié ball is a lead, conical bullet with three exterior grooves and a hollow base. It was the first bullet to accommodate the rifling of gun barrels which significantly increased range and accuracy—just in time for the American Civil War....

Small: 15–29gMedium size: 30–49gLarge size: 50–80gThis listing is for one bismuth crystal. Photos are representative of what you will receive. Please allow for slight variations in shape and color.  Element details below. 

In the past, glass manufacturers added uranium to glass for color. Uranium has since become more strictly regulated, but the old uranium glass objects are still floating around. Because of the uranium content, these marbles glow bright green under ultraviolet light. ...

This ingot is made of 99.995% pure zinc. Add it to your collection of the elements. Zinc (Zn) has the atomic number of 30.Dimensions: 3/4" wide x 5/16" thick, 0.5 oz (14g)

One - 1 ounce, 99.9% pure copper bar Copper is what we call any atom containing exactly 29 protons. It is one of the most useful chemical elements to humanity. Copper was one of the first metals discovered and used...

Radium [Ra, 88] is a radioactive element, so it isn't something you come across everyday. But decades ago, it was painted on watch hands since it naturally glows in the dark. This practice was discontinued in the 1960s, and now these...

We created our own Periodic Table of Elements, and we designed it to be the last table of elements you ever buy.⁠⁠Existing tables become inaccurate every time a new element is discovered, and labs/scientists/classrooms around the world must buy updated...

A single vial of bronze to add to your collection of metals.   The composition of this sample is based on ancient bronze samples. Each vial contains approximately 15 grams of bronze.

Add this 99.99% pure niobium sample to your collection of the elements.Comes in a labeled clear acrylic case with foam padding for convenient display.  Disc diameter: ⅞"Acrylic case dimensions: 1 ⅛" x 1 ⅛" x ⅜"