caption doctoral_advisor death_date death_place birth_place birth_date article_title name alma_mater
lionel robert wilberforce j. j. thomson 4 january 1944 london , united kingdom munich , bavaria , germany 18 april 1861 lionel wilberforce
 lionel wilberforce university of cambridge
lionel wilberforce

lionel robert wilberforce -lrb- 18 april 1861 -- 1 april 1944 -rrb- was a british physicist .
he is best known for the invention of the wilberforce pendulum , which exhibits a curious motion in which periods of purely rotational oscillation gradually alternate with periods of purely up and down oscillation .
