Imperial College London. "'Periodic table of shapes' to give a new dimension to math." ScienceDaily. ScienceDaily, 17 February 2011. <www.sciencedaily.com / releases / 2011 / 02 / 110216083123.htm>.

You may associate math with calculators or multiplication tables on a chalkboard. But it actually reaches to much higher dimensions—extending far beyond the physical world. It may sound difficult to ...

Well, at least relatively so. “You have to practice,” Ghys says. “I’ve been thinking in dimension four for 30 years now.” The videos are all available free at www.dimensions-math.org .