Prove that you can make any type of logic gate using just NAND gates.
Can you work out what this procedure is doing?
This is the technology section of stemNRICH - Core.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
An introduction to a useful tool to check the validity of an equation.
This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.
In an extension to the Stonehenge problem, consider the mechanical possibilities for an arrangement of frictional rollers.
PhysNRICH is the area of the StemNRICH site devoted to the mathematics underlying the study of physics