The different colours of light that we get from the sun What happens when light hits a raindrop Why rainbows are arch-shaped How you can create your own rainbow This resource is suitable for ...

The culprit? Wearing the wrong sneakers for my arch type. Up until recently, I wasn’t able to define arch support or tell you what my arch type was. Many runners can’t, which is a problem ...

But I soon saw that the spotlights that illuminate the arch were casting arch-shaped shadows on the low clouds. Sometimes the lighted spots even looked like sinister eyes with dark eyebrows.