By Kevin Buhl Jakobsen · New questions every night
🪐 What is a light year?
💡 It is how far light travels in a year: about 9.5 trillion kilometres.
🦉 Which animal has black skin under its white fur?
💡 The black skin soaks up the sun's warmth; the hairs are actually see-through.
🇩🇰 Which Danish physicist discovered that electric current affects a compass needle (1820)?
💡 Ørsted's discovery started the science of electromagnetism.
🏛️ Which city was buried by the eruption of Vesuvius in 79 AD?
💡 The ash preserved the town so well that we can see bread still in the ovens.
💻 Which programming language was created by Danish Bjarne Stroustrup?
💡 Stroustrup started "C with Classes" in 1979; it became C++.