- Pitfall! is a platform video game designed by David Crane for the Atari 2600 and released by Activision in 1982. The player controls Pitfall Harry and is tasked with collecting all the treasures in a jungle within 20 minutes. The world consists of 255 screens which are horizontally connected in a flip screen manner. Each screen has one or more hazards: quicksand, tarpits, rolling logs, crocodiles, snakes, scorpions, campfires, and swinging vines. Pitfall! received positive reviews upon release and is now considered one of the greatest video games ever made. It is one of the best-selling games on the Atari 2600, with over four million copies sold. It was the top video game on the Billboard charts for more than a year, and helped define the flip-screen platform game genre. All versions of the game sold over 5 million copies worldwide.
- Rutherford model (Wikipedia)
The Rutherford model was devised by Ernest Rutherford to describe an atom. Rutherford directed the Geiger–Marsden experiment in 1909, which suggested, upon Rutherford’s 1911 analysis, that J. J. Thomson’s plum pudding model of the atom was incorrect. Rutherford’s new model for the atom, based on the experimental results, contained new features of a relatively high central charge concentrated into a very small volume in comparison to the rest of the atom and with this central volume containing most of the atom’s mass; this region would be known as the atomic nucleus. The Rutherford model was subsequently superseded by the Bohr model.