For that tiny fraction of our audience not repelled by math, here is an electronic book that is fun to read. Get it while the author gives it out for free !!
One new mathematical construct can feed decades of research in other fields. Burrows Wheeler Transform is an example familiar to bioinformaticians, but that is nothing compared to what this equation did to physical sciences.
Every time I look at Euler’s formula, it fascinates me. It connects three different branches of mathematics (irrational numbers, complex numbers and geometry) in one simple equation.