harnessing lightning, or not
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From: Greegor on 13 Jun 2010 05:51 On Jun 12, 8:30 pm, Archimedes' Lever <OneBigLe...(a)InfiniteSeries.Org> wrote: > On Sun, 13 Jun 2010 11:22:19 +1000, Grant <o...(a)grrr.id.au> wrote: > >On 12 Jun 2010 07:16:54 -0700, Winfield Hill <Winfield_mem...(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... A recent TeeVee documentary on lightning showed how some guy with super high speed photography was also able to photograph lightning reaching up from various tall objects on the ground. Apparently much like the sprite lightning plentiful above the clouds, this reverse lightning from various tall objects on the ground is plentiful but little known, and it had never been captured in any photographs before, ever. This "reverse lightning" might possibly be of some value if you want to harmess atmospheric static electricity. Not as BIG as a full blown strike, but it seems that if you put up a tower this (invisible) lightning takes place much more frequently.
From: BlindBaby on 13 Jun 2010 14:54 On Sun, 13 Jun 2010 02:51:18 -0700 (PDT), Greegor <greegor47(a)gmail.com> wrote: >Apparently much like the sprite lightning plentiful >above the clouds, this reverse lightning from >various tall objects on the ground is plentiful >but little known, and it had never been captured >in any photographs before, ever. It is like large scale Kirlian photography. Any object that rises off the main homogenous 'normal flat' of the surface of this spheroid will acquire a gradient with respect to an insulted object up in the atmosphere. Clouds and water conduct, but the air doesn't. So, a charge-up of the cloud occurs with respect to the spheroid (Earth, in this case) Since it is conductive any release of that charge will usually result in a 'full dump' of the entire charge (most all of it anyway). It will release from the charged cloud to Earth, but it is possible to see tendrils (leaders) that traverse from other than flat Earthbound objects (particularly upwardly pointy objects) up to the sky or particularly, an overhead cloud formation. Think of it like the leaders that form when you near the outside of a plasma ball. You are an attractor, even though there is an insulator between you and the potential you share the attraction with. The electrons, typically move from the cloud to the Earth though, because the Earth has far more available sinking mass than any separated, charged object ever could. So the attraction is ALWAYS going to be to the spheroidal mass unless the insulated, approaching object is bigger, which only happens when planets collide. This tells me that an asteroid that impacts Earth (then meteorite) would have to have a lightning flash event to the ground at some altitude prior to it's impact. Hard to catch though, with the super-heated fireball being so bright. In fact, anything previously charged or suspended in the air long enough to gain sufficient charge will pass an electron 'packet' to Earth as soon as it becomes able to do so, either by arc over or contact. This is why sub-mariners (or sailors) catching winch lines being dropped by helicopters ground it to the sub first.
From: BlindBaby on 13 Jun 2010 14:55 On Sun, 13 Jun 2010 02:51:18 -0700 (PDT), Greegor <greegor47(a)gmail.com> wrote: >This "reverse lightning" might possibly >be of some value if you want to harmess >atmospheric static electricity. ALL lighting, and certainly any that you would end up capturing, regardless of what direction it was shot or where you caught it at, is 'atmospheric static electricity', silly man.
From: BlindBaby on 13 Jun 2010 15:00
On Sun, 13 Jun 2010 02:51:18 -0700 (PDT), Greegor <greegor47(a)gmail.com> wrote: >Not as BIG as a full blown strike, but >it seems that if you put up a tower >this (invisible) lightning takes place >much more frequently. Yes. A pointed object makes for a high voltage gradient. I have seen 'dull tipped' HV probes probe 50kV in a bath of dielectric fluid, and arc a half inch through the fluid, to the tip, as the 'probe' approached the HV node. I have then seen that probe tip get changed to a sharply pointed tip, and then seen the subsequent arc flash right through the fluid, and jump 2 inches through the air as well, to get to that 'probe tip'. The fluid gets 'perturbed' in the first case as the tip approaches. In the second case, it looks like an over-modulated ultrasonic bath, right up until the arc jumps up and out of it! |