From: Archimedes' Lever on 12 Jun 2010 21:26 On 13 Jun 2010 01:13:00 GMT, John Doe <jdoe(a)usenetlove.invalid> wrote: >But seriously... > >Lightning never strikes the same place twice, because the same >place isn't there the next time... You're an idiot. There is a reason why there is no longer a restaurant on top of Mt. Evans. That reason is because it DOES strike in the same place again. After the third fire they decided not to rebuild again. That determination was made decades ago. Lightning was the reason.
From: Archimedes' Lever on 12 Jun 2010 21:28 On Sun, 13 Jun 2010 11:22:19 +1000, Grant <omg(a)grrr.id.au> wrote: >On 12 Jun 2010 07:16:54 -0700, Winfield Hill <Winfield_member(a)newsguy.com> wrote: > >>My Maxwell capacitors hard at work energy from harnessing lightning, see my post >>with photo, at the CR4 forum. >> >>http://cr4.globalspec.com/thread/55751/Lightning-Arrestor#comment579837 > > >Does lightning have a return strike? So perhaps the bolt would ring and >want to suck much of the energy captured back out again. > >Grant. It is typically a dumping of electrons INTO the Earth. They don't bounce back. Not rubber biscuits.
From: Archimedes' Lever on 12 Jun 2010 21:30 On Sun, 13 Jun 2010 11:22:19 +1000, Grant <omg(a)grrr.id.au> wrote: >On 12 Jun 2010 07:16:54 -0700, Winfield Hill <Winfield_member(a)newsguy.com> wrote: > >>My Maxwell capacitors hard at work energy from harnessing lightning, see my post >>with photo, at the CR4 forum. >> >>http://cr4.globalspec.com/thread/55751/Lightning-Arrestor#comment579837 > > >Does lightning have a return strike? So perhaps the bolt would ring and >want to suck much of the energy captured back out again. > >Grant. Although the space shuttle has recorded lightning strokes which also had an upward going 'sprite' that rose above the atmosphere (at least one visible layer). They have recorded many, in fact. I have seen ball lightning twice in my life. Maybe they are little mini black holes...
From: Bert Hickman on 12 Jun 2010 21:34 BlindBaby wrote: > On Sat, 12 Jun 2010 19:42:07 -0500, Bert Hickman > <bert-hickman(a)comcast.net> wrote: > >> Thyratrons > > > That is what the big boys use on the multi-Megavolt DC interties. > > Stack of 'em in a 30' x 12' x 12' box suspended 90' in the air in a > VERY big room. They are like 7 inches in diameter and an inch thick (the > actual Thyratron medium). These stacked power switches for DC Interties are actually Thyristors... modern optically-triggered SCR's. These replaced ignitrons in older inverters. Thyratrons are gas-filled electron tubes. Similar sounding but completely different technologies. Bert -- ******************************************************************** We specialize in UNIQUE items: coins shrunk by ultra-strong magnetic fields, Captured Lightning Lichtenberg figure sculptures, and scarce technical Books. Please visit us at http://www.capturedlightning.com ********************************************************************
From: BlindBaby on 12 Jun 2010 22:17
On Sat, 12 Jun 2010 20:34:19 -0500, Bert Hickman <bert-hickman(a)comcast.net> wrote: >BlindBaby wrote: >> On Sat, 12 Jun 2010 19:42:07 -0500, Bert Hickman >> <bert-hickman(a)comcast.net> wrote: >> >>> Thyratrons >> >> >> That is what the big boys use on the multi-Megavolt DC interties. >> >> Stack of 'em in a 30' x 12' x 12' box suspended 90' in the air in a >> VERY big room. They are like 7 inches in diameter and an inch thick (the >> actual Thyratron medium). > >These stacked power switches for DC Interties are actually Thyristors... >modern optically-triggered SCR's. These replaced ignitrons in older >inverters. > >Thyratrons are gas-filled electron tubes. Similar sounding but >completely different technologies. > >Bert Yes... I had a whole word typo. I read you writing thyratron, and thought of the thyristors up at Bonneville. A bit of dyslexia there... |