Chemical refrigerants are assigned an R number which is determined systematically according to molecular structure.Common refrigerants are frequently referred to as Freon (a registered trademark of DuPont).hemical refrigerants are assigned an R number which is determined systematically according to molecular structure.
Some Rube Goldberg machines. use a complicated series of actions to simply move an object from. one place to another. Any object that is moving, has what is called kinetic energy; giving. an object more speed means giving it more kinetic energy.
The self-operating napkin is a famous cartoon that sums up what Rube Goldberg machines are all about: creating a machine (or contraption or invention or device or apparatus) that uses a chain reaction to accomplish a very simple task in a very complicated manner.here are annual National Rube Goldberg Machine Contests, where people submit their own machines to see which one is the most complex. Maybe you could take part in that one day! Have a Marvelous Monday!