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Started by Mark C. O'Connor
Sun, 02 Oct 1994 16:57
fulgurites
Author: Mark C. O'Connor
Date: Sun, 02 Oct 1994 16:57
Date: Sun, 02 Oct 1994 16:57
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1292 bytes
The lightning-fused rocks are called fulgurites. Mt. Thielsen in the Cascades is noted for them. (see Stepehen Haris, Fire Mountains of the West). Re lab interface tools for computers. Our school has Sensor Net (From Accu-Lab, Ken lEw and Assoc., Palo Alto, CA). You can attach a variety of devices to the interface box, from pH probes, temp. probes, pulse monitors, even Vernier's Smart Pulley and Pasco's photogates. The software is super-easy and version 2 supports Mac's System 7 "quicktime" movies. They'd be worth comparing to Vernier (who seem to make excellent stuff) and I'm sure Ken Lew will be at NSTA Mark O'Connor, Yreka HS, Yreka, CA
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