Heike Kamerlingh Onnes Heike Kamerlingh Onnes Professor Heike Kamerlingh Onnes FRSFor HFRSE FCS ( (); 21 September 1853 – 21 February 1926) was a Dutch physicist and Nobel laureate. He exploited the Hampson–Linde cycle to investigate how materials behave when cooled to nearly absolute zero and later to liquefy helium for the first time, in 1908. He was also the discoverer of superconductivity in 1911. Kamerlingh Onnes was born in Groningen, Netherlands. His father, Harm Kamerlingh Onnes, was a brickworks owner. His mother was Anna Gerdina Coers of Arnhem. In 1870, Kamerlingh Onnes attended the University of Groningen. He studied under Robert Bunsen
Heike Henkel Heike Henkel Heike Henkel (born Heike Redetzky on 5 May 1964) is a German former athlete competing in high jump. She won the high jump gold medal at the 1992 Summer Olympics in Barcelona. Henkel was born in Kiel, Schleswig-Holstein. Having competed for West Germany at the Olympic Games in 1984 and 1988, she emerged as the world's leading female high jumper of the early 1990s. As well as her Olympic triumph, Henkel won World, World Indoor, European and European Indoor titles. She is one of only two female high jumpers in history to have won all five titles, the