Science

Rachel in Space: Welcome home, Endeavour!

Rachel in Space: Welcome home, Endeavour!

Image courtesy NASA Despite initially “iffy” weather reports, Endevaour was given the all-clear to land at Kennedy Space Center late last night, completing an almost two-week mission to the International Space Station where the crew installed a new node and the Cupola. The impressive seven-window addition has already offered up stunning pictures of earth. Image […]

Math Monday: Sierpinski tetrahedron

Math Monday: Sierpinski tetrahedron

Sierpinski tetrahedron By George Hart for the Museum of Mathematics A classic 3D fractal is the Sierpinski tetrahedron, which is a tetrahedron of tetrahedra of tetrahedra, etc. This fifth-order model is about 8.5 inches along its edges. It is made from nylon by selective laser sintering. If you have access to additive fabrication machines, you […]

Math Monday: Morton Bradley sculpture

Math Monday: Morton Bradley sculpture

Morton Bradley sculpture By George Hart for the Museum of Mathematics It’s amazing what can be made from paper. These two mathematical sculptures by Morton C. Bradley are 16″ and 20″ in diameter, respectively, made from 2-ply Strathmore paper. The geometric forms are each based on twelve copies of a Kepler-Poinsot polyhedron, with twelve great […]