This cool new Pi t-shirt features math constant Pi to 1000 decimal places!
You will be super-cool when you wear this shirt on March 14th, the Pi day!
On March 14th, people all over the United States participate in National Pi Day, which celebrates the irrational number Pi and encourages funding for math and science programs in schools.
Build a model green house and 9 other green energy-related devices with this great kit!
This project book and sample kit introduces you to shape-memory alloy technology!
This is a classic demonstration toy of the powers of magnetic fields!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
Find the hidden crystals when you open your own geodes from this fun set.