TED-Ed Originals The Greeks had a simple and elegant formula for the universe: just earth, fire, wind, and water. Turns out there's more to it than that -- a lot more. Visible matter (and that goes beyond the four Greek elements) comprises only 4% of the universe. CERN scientist James Gillies tells us what accounts for the remaining 96% (dark matter and dark energy) and how we might go about detecting it.
The beauty of minimal surfaces--The maths behind minimal surfaces is anything but simple and mathematicians have studied the problem of how such surfaces can be expressed extensively. The area of maths that deals with minimal surfaces is called “calculus of variations”. Minimal surfaces have far reaching implications in geometry and design. Stadiums often use the design to create strong coverings. The natural shape is very efficient and beautiful.