Videos circulating on social media claim that “a Greenland shark born in 1620 has been discovered. These sharks live longer than any other living creature on Earth and reach reproductive age at 120 years old.” The videos are often presented as sensational stories, suggesting that sharks born in the early 17th century are still swimming in the oceans today. But how accurate is this claim? Where Did This Claim Come From? In 2016, a study published in the journal Science attra

Mankind has always tried to invent a perpetual motion machine - a perpetuum mobile (lat. perpetuum mobile, literally - perpetual motion),...