Cu atâtea miliarde de cadouri care trebuie livrate într-o singură noapte, Moș Crăciun, împreună cu renii săi, trebuie neapărat să se deplaseze cu viteze astronomice. Mai puțin știut de către publicul larg este că, oricât…
The article humorously explores the idea of calculating Moș Crăciun's speed on Christmas Eve using the color of Rudolph's nose and the Doppler effect. The main conceptual idea is that the Doppler effect, which changes the wavelength of light (or sound) based on the speed of the source, could theoretically be used to determine Moș Crăciun's speed and direction if we could observe the light reflected from Rudolph's red nose. Essentially, the article uses a playful, science-fiction approach to discuss a real scientific phenomenon.