Not exact matches
The Skewb Cube is made
of 14 smaller units
of two different types: 8
corner tetrahedrons colored on three sides and 6 center squares colored on just one side.
Their initial work showed that the catalyst worked as a molecule that contained a core
of four rhodium atoms in a
tetrahedron, or a triangular pyramid, with each
corner decorated with boron and other elements.
Natural gas is primarily methane, composed
of individual molecules that have one central carbon atom and four hydrogen atoms on the outside, positioned as if at the
corners of a triangular pyramid (a
tetrahedron).