Scientists from Brussels

Jean Kickx (17 January 1803, Brussels – 1864) was a Belgian botanist. His father, also known as Jean Kickx (1775–1831) was a botanist and mineralogist; his son Jean Jacques Kickx (1842–1887) was a professor of botany at the University of Ghent.
In 1830 he obtained his PhD at Leuven, later serving as a professor of botany in Brussels (1831–1835) and at the University of Ghent (1835–1864). He was a co-founder of the Société royale de botanique de Belgique.The mycological genus Kickxella (order Kickxellales) was named in his honor by Eugène Coumans.

Paul Héger (1846–1925) was a Belgian biologist, and was born to Constantin Héger and Claire Zoë Parent.
Paul Hèger assisted Earnest Solvay (famous for Solvay Process) along with Hendrik Lorentz (Dutch physicist who shared noble with Pieter Zeeman for Zeeman effect) in the formation of Solvay enterprise who arrange Solvay conferences.
Hèger was professor at Universitè Libre de Bruxelles and a close collaborator of Ernest Solvay. He wrote in 1912 the rules of institute of Physics with Dutch physicist Hendrick Lorentz 1902 Nobel Laureate.

Joseph Antoine Ferdinand Plateau (French pronunciation: [ʒozɛf ɑ̃twan fɛʁdinɑ̃ plato]; 14 October 1801 – 15 September 1883) was a Belgian physicist and mathematician. He was one of the first people to demonstrate the illusion of a moving image. To do this, he used counterrotating disks with repeating drawn images in small increments of motion on one and regularly spaced slits in the other. He called this device of 1832 the phenakistiscope.