The solar system and the Gregorian calendar are not entirely in sync, hence their need. In 2020 we are enjoying a leap year, but when will the next one be?
New energy technologies are one of the great hopes in the fight against climate change. Now that they are so fashionable, we propose a challenge: how many questions in this test are you able to get right?
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.