Plate from 18th century encyclopedia showing an illustration of a hand cranked crane showing a system of gears. When two gears of unequal number of teeth are combined,a mechanical advantage is produced,with both the rotational speeds and the torques of the two gears differing in a simple relationship. Mechanical advantage is a measure of the force amplification achieved by using a tool,mechanical device or machine system. Ideally,the device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Parker, David |
Bildgröße: | 6450 px × 4022 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |