| Description of Defunct Theory | Answer |
| Count Rumford discovered a lot about this debunked substance by boring a whole lot of cannons (how boring). It was said to exist in all things and was the cause of heat transfer. | |
| Michelson and Morley put the final nail in the coffin of this concept when they showed that the speed of light did not depend on what direction one was facing. | |
| Benjamin Franklin was a proponent of this theory of electricity which had both positive and negative flows within a wire. | |
| This delicious theory was kicked to the curb when Rutherford (and Geiger and Marsden) shot some alpha particles (helium nuclei) at some gold foil. Sorry Thomson. | |
| It was Empedocles in ancient Greece who tacked on these 2 new 'forces' to the already widely accepted 4. His new forces were meant to explain WHY the others behaved how they do | |
| Though still ubiquitous today, due to its high accuracy in most situations, this theory pioneered by the likes of Newton and Lagrange was replaced by the stranger Quantum Mechanics | |
| It was Newton who put forward this theory which states that light is made of tiny particles (for which he had a special name). Unfortunately the true story is more complicated. | |
| This theory of an unchanging universe was an equally accepted alternative to the big bang theory before the relatively recent discovery of the Cosmic Microwave Background Radiation | |
| Despite being 'common knowledge' it is simply not true that people believed this theory until Columbus. Even before the ancient greeks this theory was known to be false. | |
| Despite what people say, this theory was NOT replaced by the view that the 'earth rotates around the sun' but rather both orbit around their two-body center of mass. | |
| Poor Newton, his theories are taking a beating. It was Einstein who 'revised' this law which is probably best known to layman for the apocryphal tale of how Newton conceived it. | |
| Yet another theory smashed by Einstein. This theory of Galileo stated that, in physics, there was an absolute time and inertial reference frames could have any relative velocity. | |