Thus, the F- and V-type ATPases are two distinct, although related, molecular machines in which the action of multiple parts is tightly coordinated to achieve coupling between ion current and ATP ...

THIS little book of 75 pages is designed to give to amateurs practical information as to the construction of a small working dynamo-machine. What is aimed at is the building up of a machine ...

But the machine works only because it contains some of those unrealistic bits Olson refers to. In particular, it makes a dynamo only if one or both of the stirring disks are made of iron.

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