One Down, Two to Go (film) One Down, Two to Go (film) One Down, Two to Go is a 1982 American blaxploitation film written and directed by Fred Williamson and starring Fred Williamson, Jim Brown, Richard Roundtree and Jim Kelly. A pair of tough cops, Cal (Fred Williamson) and J (Jim Brown), go after the mob after it jinxes the martial arts tournament and injures their friend Chuck (Jim Kelly). In order to make the fights look more authentic during the fictitious martial arts tournament in the opening of the film they are in fact real and not staged, the winner of each fight got paid
Two New Sciences is a hemp rope which is constructed from small fibres which bind together in the same way as a rope round a windlass to produce something much stronger. Then the vacuum that prevents two highly polished plates from separating even though they slide easily gives rise to an experiment to test whether water can be expanded or whether a vacuum is caused. In fact, Sagredo had observed that a suction pump could not lift more than 18 cubits of water and Salviati observes that the weight of this is the amount of resistance to a void. The discussion turns to