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#11
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Soaking Wet
MatSav geeked out and went all literal on me:
"Bastette" wrote in message I guess you didn't have trouble with that? And riding through Manhattan, you're far from the tallest thing around, so you're not going to be a lightening rod. fx: Warning siren: thread convergence What is the purpose of a lightening rod? Does it, for instance, change a visual attribute of a dark blue painted surface to make it appear to be a light blue painted surface? :-) On the other hand, the purpose of a lightning rod is explained he http://en.wikipedia.org/wiki/Lightning_rod :-) /fx OK, OK - but surely you got my point, didn't you? What's all this about dark blue and light blue? -- Joyce Whenever you feel anger, you should say, "May I be free of this anger!" This rarely works, but talking to yourself in public will encourage others to leave you alone. |
#12
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Soaking Wet
On Fri, 17 Aug 2012 21:54:54 +0000 (UTC), Bastette
wrote: dgk wrote: We had very odd thunderstorms in NYC on Wednesday. Since I often commute by bike I was keeping an eye on the radar and the storms just kept popping up over eastern New Jersey and heading right into Manhattan. It looked like there was a break around 4pm so I hopped on the bike and started pedaling madly for home. But it just kept raining and got so bad that it became a flash flood advisory. I did put on a rainjacket I keep handy, mostly because it was getting cold but the rest of me was light shorts and sandels. I rode through as much as 8" of water where cars and trucks were at a dead stop. What a mess. But you can only get so wet and then the water just rolls off, and eventually you will dry. I don't recall my mom ever explictly telling me not to ride a bike in thunderstorms but it was probably implied. Wow. I've ridden a bike through pouring rain (for hours, once), but not through a flood. I would be worried about my brakes not working. I guess you didn't have trouble with that? And riding through Manhattan, you're far from the tallest thing around, so you're not going to be a lightening rod. I wasn't moving fast enough to really worry about the brakes, but they're disc brakes and seemed to be unaffected. This wasn't in Manhattan though. I generally exit Manhattan fairly quickly via the Williamsburg Bridge so I was mostly getting doused in Brooklyn and it started letting up by the time I was in Queens. I heard somewhere that it is ok to be in fresh water if lightning is around, that the current actually flows through the salt in salt water. But I wasn't really interested in trying any experiments. |
#13
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Soaking Wet
"dgk" wrote in message
news ... I heard somewhere that it is ok to be in fresh water if lightning is around, that the current actually flows through the salt in salt water.... The salts dissolved in sea water allow for ion transfer, and thus do provide better electrical conductivity than 'fresh' water. However, even 'fresh' water will contain dissolved minerals that can allow ionic currents to flow. The primary ion transfer element in most fresh water supplies is likely to be calcium or magnesium. Deionised or distilled water has almost zero electrical conductivity. ...But I wasn't really interested in trying any experiments. Of course not - unlike Benjamin Franklin and his kite! -- MatSav |
#14
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Soaking Wet
MatSav wrote:
"dgk" wrote in message news ... I heard somewhere that it is ok to be in fresh water if lightning is around, that the current actually flows through the salt in salt water.... The salts dissolved in sea water allow for ion transfer, and thus do provide better electrical conductivity than 'fresh' water. However, even 'fresh' water will contain dissolved minerals that can allow ionic currents to flow. The primary ion transfer element in most fresh water supplies is likely to be calcium or magnesium. Deionised or distilled water has almost zero electrical conductivity. But something must conduct electricity in bath water, when an electrical appliance falls into the tub where someone is bathing. -- Joyce And for those who are constitutional originalists and worry about mustering a militia, let's go with what the founding fathers had - allow them muskets! -- NancyE |
#15
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Soaking Wet
"Bastette" wrote in message
MatSav wrote: "dgk" wrote in message news ... I heard somewhere that it is ok to be in fresh water if lightning is around, that the current actually flows through the salt in salt water.... The salts dissolved in sea water allow for ion transfer, and thus do provide better electrical conductivity than 'fresh' water. However, even 'fresh' water will contain dissolved minerals that can allow ionic currents to flow. The primary ion transfer element in most fresh water supplies is likely to be calcium or magnesium. Deionised or distilled water has almost zero electrical conductivity. But something must conduct electricity in bath water, when an electrical appliance falls into the tub where someone is bathing. That's what I tried to say. With a domestic "fresh" water supply, it''l have variable concentrations of dissolved minerals - such as calcium, magnesium, iron, copper, lead, and zinc. These are *all* metals, which can be ionised and conduct electricity - as can the free chlorine added as a cleansing agent (which isn't a metal, if I remember correctly - but it can still be ionised). -- MatSav |
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