and his wife Marie, according to the RTBF. "Please Albert, smile" As Einstein took his seat in the vehicle, the photographer Arthur Sasse rushed up to him, begging him to smile. The result?

In 1911, Albert Einstein penned an extraordinary letter to Marie Curie. Curie was going through one of the most tumultuous periods of her life, with public opinion pushing strongly against her.

But trolling isn't a modern-day phenomenon. A resurfaced century-old letter from Albert Einstein to Marie Curie shows that the legendary female scientist, who discovered the X-ray and won two ...