In this video from <i>Cool Physics Videos</i> we look at the refraction of light due to density gradient. In the middle of the aquarium is the gradient density. It means that the density of water as well as its index of refraction changes with height. The light is refracted.
In this video from <i>Cool Physics Videos</i> we look at footage of our participation as guests in the 15th Slovenian Science Festival. We were selected for Stars of the festival together with astronaut Sunita Williams.
Fizik.si joined with the performers on Sunny afternoon event in Radovljica which is traditionaly held every last sunday in august. This time we filled a big bucket full of 'live mass&'.