This 1 inch diameter ceramic disc magnet is made of strontium ferrite. It is a classic low-cost magnet for demonstration and experimentation. Note that these are multi-pole disc magnets, which means that their north and south poles are angularly mixed. These will not repel each other--rather, they will almost always be attracted to each other and to other iron objects. Get a few of these for your next science fair project.
This magnet has a strength of: 500 Gauss (0.05 T)
Great reference card for chemistry and physics students.
Use this kit to conduct experiments with models to learn about forces and simple machines!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Build a robot that's an artist too!
An unconventional ball-tossing, head-catching challenge for 2 players or teams!
This high precision gyroscope will amaze you with rotational speed and ease of precision.