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.
There is an annual rube goldberg machine contest that the Rube Goldberg company holds. Similar expressions and artists worldwide. AustriaâFranz Gsellmann worked for decades on a machine that he named the Weltmaschine (world machine), having many similarities to a Rube Goldberg machine. A Rube Goldberg machine is a deliberately complex contraption in which a series of devices that perform simple tasks are linked together to produce a domino effect in which activating one device triggers the next device in the sequence. The expression is named after American cartoonist and inventor of such contraptions, Rube Goldberg. Over the years, the expression has expanded to mean any confusing or complicated system. For example, news headlines include Is Rep. Bill Thomas the Rube Goldberg