One of my favourite games as a youngster was to skip stones on water. I was really bad at it – and still I became a physicist, a rocket scientist even. So, why does a stone skip on the water? You can find answers here at Quora. It is basically about vectors and where they […]Read More Skipping stones like a boss
There are many texts out there which discuss the reflection of light from surfaces. A good example would be found here. Now, as well as these articles are written, I do have a question. How come that water can reflect light? Isn’t it supposed to be transparent? Mirrors work in such a way that electrons […]Read More Why would a lake reflect a mountain?
Clouds are collections of water droplets or, at higher altitudes, water ice crystals. So, honestly, why would they stay up there? It is not like snow flakes, for example, hang around or anything. The title question is legitimate. We cannot invoke old Archimedes and claim that the clouds float like a hydrogen balloon would. Hydrogen […]Read More Why don’t clouds fall down?
I will confess something. After having lived close to 15 years in Northern Norway, scenes like the one above appear in front of my eyes so often that I do not look twice – normally. Unless, of course, something hits me straight in the face in all its glorious obviousity . There’s a little creek […]Read More The least spectacular beach in Andøy
The picture above is of Bleik beach in Andøy in Northern Norway. I will readily admit that I want to bait you to click on the link with that picture. And why not? That place is stunningly beautiful. You can see that even on a cell phone image. Being a physicist, I stood on that […]Read More The Physics of Bleik