Video: Beauty of Science made this very colourful video using footage taken from microscopes or macro shots — chemical reactions, paint experiments and so on — to illustrate all the seasons we have on this planet.
Something weird is happening to spring. It’s starting earlier and earlier — but not everywhere. The shift is limited to cities and heavily-populated areas.
Flowers may be spring’s hallmark, but humans can also smell the change of seasons. What exactly is that familiar scent that lets us know it’s a new time of year? Turns out, it’s a lot more complicated than wood smoke and pumpkin spice lattes.