Physics in Advent on Twitter: "We wish you a wonderful 3rd Advent! Once again, we are giving away 2 iPad Mini for these two weekend questions. Stay tuned and have fun! #Physics #
Hanover, Germany. 28th Nov, 2020. Four green candles decorate an Advent arrangement, which is offered for sale in front of a flower shop. Credit: Hauke-Christian Dittrich/dpa/Alamy Live News Stock Photo - Alamy