Pump Drill: Difference between revisions
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Originally used to drill small holes ''(and still used for some craft acitivites)'' they are now most commonly used in woodcraft and survival courses as a means of making fire by rapidly rotating one piece of wood against another to genereate heat by [https://en.wikipedia.org/wiki/Friction#Kinetic_friction '''Friction''']. | Originally used to drill small holes ''(and still used for some craft acitivites)'' they are now most commonly used in woodcraft and survival courses as a means of making fire by rapidly rotating one piece of wood against another to genereate heat by [https://en.wikipedia.org/wiki/Friction#Kinetic_friction '''Friction''']. | ||
[[Category:Drilling and Boring]] | |||
Revision as of 20:09, 29 October 2015
A Pump Drill and its variant the Bow Drill, are two ancient devices powered by a simple twist of string.
Originally used to drill small holes (and still used for some craft acitivites) they are now most commonly used in woodcraft and survival courses as a means of making fire by rapidly rotating one piece of wood against another to genereate heat by Friction.