Little Guides to great Lives: Marie Curie

Can you create more than 70 shapes?  Unlock the mystery of Shashibo! Each Shashibo is powered by 36 rare earth magnets. 1 cube transforms into over 70 shapes. Combine 2 or more Shashibos to build larger shapes and create more possibilities. Can you master...

Ferrofluid is an iron-based liquid that reacts in the presence of a magnetic field.  Comprised of nano-scale magnetic particles suspended in a transparent liquid, ferrofluid aligns itself to a magnetic field, making it easy to visualize the field. With this amazing magnetic...

MoYu is the preferred brand for speed cubers. Classic Rubik’s cubes are too stiff and difficult to maneuver quickly. If you’re looking to set a new Rubik’s cube world record, this is a great cube to use!

These tiny beads are made of a super absorbent polymer that can soak up a surprising amount of water. Plus, since they are almost entirely water when fully absorbed, they have the same refraction index as water and become invisible.  ...

This spinning top has a surprising behavior. When spun, it will invert itself to spin upside down until it loses momentum. This interesting gyroscopic effect is generally credited to surface friction. This small friction causes a torque which gradually rotates the...