Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] heat/energy



On 01/28/2010 08:15 AM, ludwik kowalski wrote:

This made me think about drilling a hole with a dull bit.

Or how about ye olde fire plow and/or fire bow.
Illustrations and instructions can be found at:
http://dnausers.d-n-a.net/dnetIULU/faw.html

These go together with the fire piston we discussed a
few days ago, in the matchless fire-making category.