And I am obviously prepared for several extensions of the classic experiment should the students be so inclined…
Now I only need to get the ice cubes from Kiel to Hamburg — and as ice cubes, not a colourful, salty, wet mess :-)
Having gotten that backstory as a hint, any idea what’s going on with the spoons below?
Yep. Freshwater on the left, salt water on the right. Different refraction indices due to different densities. Neat :-)