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.
Rube Goldberg: The father of inventions. | The popular board game Mousetrap is an example of a Rube Goldberg-inspired machine, a contraption that contains elaborate mechanisms with a vast array of moving parts to perform a simple function.Mo Rocca visits the Rube Goldberg Machine Contest, where less is never more.ube Goldberg: The father of inventions. | The popular board game Mousetrap is an example of a Rube Goldberg-inspired machine, a contraption that contains elaborate mechanisms with a vast array of moving parts to perform a simple function. Mo Rocca visits the Rube Goldberg Machine Contest, where less is never more.