Recent content by Bobvila

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    Glass, melting points, and Xmas gift idea

    Hey, I recently bought my gf a ring and would like to put it in a glass bottle and allow it to hang by a fish line with it corked on top. I haven't found any wine bottles that allow the ring to just go in naturally, I have been having to heat all of them. I was wondering if I were to...
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    Simple Torque Problem: Finding Torque on a Tree from Tension in a Rope

    https://www.physicsforums.com/attachment.php?attachmentid=27330&d=1280819697 ^ link to image. So you have the hyp (8) going from bumper to top of trunk at 3m high. You then have a "dotted" line going from bumper to bottom of trunk and you have a right triangle. (Triangle 1) Triangle 2:You...
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    Simple Torque Problem: Finding Torque on a Tree from Tension in a Rope

    Would somebody mind explaining why you use cos in this problem? I think I have it right (please correct if wrong, i always get confused with this!) So you take the cos-1 ( adj/hyp) because you know one side is 90. Now there is info that would allow you to use sin opp/hyp at the...