10 most difficult sci­en­tists riddles

Sir William Lawrence Bragg was an Australian-born British physicist and X-ray crystallographer, discoverer of Bragg's law of X-ray diffraction, which is basic for the determination of crystal structure. Bragg was, until October 2014, the youngest ever Nobel laureate; he won the prize in 1915 at the age of 25. He remains the youngest recipient of the Physics Prize.

Jules Henri Poincaré was a French mathematician, theoretical physicist, engineer, and philosopher of science. He is often described as a polymath, and in mathematics as " The Last Universalist"n since he excelled in all fields of the discipline as it existed during his lifetime. He was responsible for formulating the Poincaré conjecture, which was one of the most famous unsolved problems in mathematics until it was solved in 2002–2003 by Grigori Perelman. In his research on the three-body problem.

Myron Krueger is an American computer artist who developed early interactive works. He is also considered to be one of the first generation virtual reality and augmented reality researchers. Krueger went on to develop Metaplay, an integration of visuals, sounds, and responsive techniques into a single framework. In 1971, his "Psychic space" used a sensory floor to perceive the participants' movements around the environment.

In his younger days he was noted more for his athletic prowess than his intellectual abilities. He won seven first places in a single high school track and field meet in 1906. He also set the state high school record for the high jump in Illinois, and practiced amateur boxing.

Jan Baptist van Helmont (1580–1644) was a Flemish chemist, physiologist, and physician. He worked during the years just after Paracelsus and the rise of iatrochemistry, and is sometimes considered to be "the founder of pneumatic chemistry". Van Helmont is remembered today largely for his ideas on spontaneous generation, his 5-year tree experiment, and his introduction of the word "gas" (from the Greek word chaos) into the vocabulary of science.

14 of March is celebrated on many schools and universities as both Pi Day and the birthday of Albert Einstein. One of the traditions is the 'Pi Pie' (pictured).

Carl Friedrich Gauss was a German mathematician who made significant contributions to many fields including number theory, algebra, statistics, analysis, differential geometry, geodesy, geophysics, mechanics, electrostatics, magnetic fields, astronomy, matrix theory, and optics.

Thomas Alva Edison (1847- 1931) was an American inventor and businessman, who has been described as America's greatest inventor. He is credited with developing many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb, had a widespread impact on the modern industrialized world.

Roentgenium, copernicium, and einsteinium are chemical elements. There is no such thing like a darwinium.

Grigorij Parelman is a Russian mathematician who in 2003 proved (confirmed in 2006) Thurston's geometrization conjecture. This consequently solved in the affirmative the Poincaré conjecture. In 2006 he was offered the Fields Medal and a million $ along with it, but he declined the award, stating: "I'm not interested in money or fame; I don't want to be on display like an animal in a zoo."