But the real question is: If the tree falls over, and no one hears it, did it really fall over, and did the wire snap?
Sorry, I could not resist... -- 73's, and thanks, Dave For software/hardware reviews see: http://www.nk7z.net For MixW support see: https://groups.yahoo.com/neo/groups/mixw/info For SSTV help see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Thu, 2016-02-11 at 14:34 +0000, Dauer, Edward wrote: > In a recent post Jim, K9YC, suggested making hard-drawn copper wire > for antennas by attaching a few hundred feet of bare copper wire to a > tree or telephone pole at one end and to a bumper hitch at the other, > then driving away very slowly until it snaps. That sounded like a > very attractive idea - much in the ham tradition. I wondered, > though, whether it could be done using a car without a bumper > hitch. The minimum breaking strength of number 8 hard-drawn copper > wire (though it might be closer to number 10 after being stretched) > is between 644 and 826 pounds, according to a chart I found on the > Internet. Rather than test it empirically with my 16-year-old SUV > (no bumper hitch), I wondered what 700 or 800 pounds of shear force > would do to an automobile frame, assuming attachment to a suitable > bolt somewhere. Or would the tree fall over first? > > Ted, KN1CBR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
