Machines Definition and 208 Threads

I'm thinking of throwing a party in three months or so. A fad that has been getting more popular lately is a foam party. To do this you need a foam machine. Rental for one of these units is well above $100, and sometimes around $400. That's a little pricy for my budget, but I figure that with a...

I was sitting in my car today, before class, pondering the meaning of the universe. When I thought,"Hey, if there is a smallest unit of matter, then there should also be a smallest unit of energy." Well, then I thought, "If that's true, then if the smallest unit of energy were to act upon the...

Why can't machines be 100 percent efficent[?]

I'm sure most of us have, at one time or another, thought of silly greetings to leave on our answering machine. I have recently come up with one that I wish to share. I would also like to know if anyone here is the legal expertise to tell me whether or not I can legally enforce the following...

what is best,a machine we use in the food industry, cycles at 30rpm a direct drive cam opperates a lifter that travels 500mm up and down, the machine is washed down every night,there is no particulate matter. so would linear bearings or bushes be best for lifter? "lubrication is minimal"

What non-metallic element named for an ancient Greek deity found extensive use in photocopying machines?

Why is it that black colors create a positive elctrical charge, while white colors send a negative charge? Does it have to do with different wave lengths? When light (in a copy machine) is focused on to the photoconductive drum, why and how does the black color become positively charged? I...

Why is it that black sends a positive charge through a copy machine while white sends a negative charge? I presume it has something to do with the wave lengths? If you don't know how a copy machine works, consult me. I have an unexplained obssession of learning about copy machines (and it is...