from the archive >:)
(via beesandbombs)
"The essence of mathematics lies in its freedom."-
Georg Cantor
Today (March 3) is the birthday of Georg Cantor. He founded set theory and introduced the mathematically meaningful concept of transfinite numbers, indefinitely large but distinct from one another. He once said “Some infinites are bigger than other infinites.”
External links:
[http://www.britannica.com/EBchecked/topic/Georg-Cantor]
[http://en.wikipedia.org/wiki/Georg_Cantor]
Georg Cantor (March 3, 1845 - January 6, 1918)
(Source: spring-of-mathematics)
Celebrate Stephen Hawking’s 73rd birthday by watching the renowned physicist take down comedian John Oliver!
(Source: youtube.com)
4D analogues of the platonic solids
In 3 dimensions, we know the platonic solids as the Tetrahedron, the Octahedron, the Cube (or hexahedron), the Isocahedron and the Dodecahedron. The suffix -hedron refers to a 3D object called a cell, and the prefix (tetra-, octa-, dodeca- …) refers to the number of 2D faces bounding the cell. For example: tetra-hedron stands for a 3D shape bounded by 4(=tetra) 2D triangles.
The suffix -choron refers to a 4 dimensional polytope. 4D polytopes are bounded by 3D cells. For example a hypertetrahedron is built up of 5 3D tetrahedral cells. That’s why it is called a penta-choron. The hyperisocahedron is built up of a massive 600 tetrahedral cells.Fathom the Universe
(via visualizingmath)
A quantum world arising from many ordinary ones
Radical theory proposes that interactions between classical worlds can explain some quantum phenomena.
NASA Space Sounds
Here’s a collection of NASA sounds from historic spaceflights and current missions. You can hear the roar of a space shuttle launch or Neil Armstrong’s “One small step for (a) man, one giant leap for
