lightning strike - Page 1
Forum section: electronics / general

author: Cubdriver
author_rank: Unknown
timestamp: August 31, 2017, 08:01:58 pm
content: Damn!!! That must have been deafening!-Pat

author: Ampera
author_rank: Super Contributor
timestamp: August 31, 2017, 08:05:29 pm
content: Wow, that must have beenStriking

author: tautech
author_rank: Super Contributor
timestamp: August 31, 2017, 08:06:49 pm
content: Very lucky guy..........He went inside to change his underpants and buy a Lottery ticket.

author: Refrigerator
author_rank: Super Contributor
timestamp: August 31, 2017, 10:09:23 pm
content: I like the moment when they go like "yeah we should probably get inside"Quote from: TwoOfFive on August 31, 2017, 08:05:29 pm"YEAAAAAAAAAAAHH *duuun dun du-dun darara duuun*"CSI reference, for those who are not into memes.

author: Dave
author_rank: Super Contributor
timestamp: August 31, 2017, 10:54:09 pm
content: Stop propagating these fake viral videos, the makers don't deserve to be paid for views.

author: Gromitt
author_rank: Regular Contributor
timestamp: September 01, 2017, 07:07:30 am
content: How do you know it's a fake video?The video is on the Norwegian TV channel TV2's Youtube channel so the maker don't get the views.I think it's genuine.

author: Dave
author_rank: Super Contributor
timestamp: September 03, 2017, 02:17:17 am
content: Lightning doesn't strike a rock on the ground, when there are many taller, pointier and much more conductive objects around the spot.The bastards used a fire cracker and shitty video editing to make it seem like a "lightning".

author: Halcyon
author_rank: Unknown
timestamp: September 03, 2017, 02:24:27 am
content: And the glass table didn't even smash.

author: MarkS
author_rank: Unknown
timestamp: September 03, 2017, 02:56:14 am
content: Quote from: Dave on September 03, 2017, 02:17:17 amThis.

author: Kryoclasm
author_rank: Regular Contributor
timestamp: September 03, 2017, 07:19:34 am
content: Not fake, look at the clothes line holder.When the last bolt hit, all the wires on this thing glow orange and then they are gone.

author: Halcyon
author_rank: Unknown
timestamp: September 03, 2017, 07:34:06 am
content: Quote from: Kryoclasm on September 03, 2017, 07:19:34 amThe "glow" is reflected light coming from the explosives. You can see the thicker poles of the clothes line "glow" just as much as the thin wires.

author: CopperCone
author_rank: Super Contributor
timestamp: September 03, 2017, 08:12:46 am
content: it does not sound like explosives

author: Ampera
author_rank: Super Contributor
timestamp: September 03, 2017, 12:12:07 pm
content: Quote from: CopperCone on September 03, 2017, 08:12:46 amSound editing.

author: Bud
author_rank: Super Contributor
timestamp: September 03, 2017, 01:23:28 pm
content: I once saw a lightning bolt striking a hundred meters away from me and all i could hear was a loud hissing sound, there was no "boo-om" or "ba-ang".

author: BradC
author_rank: Super Contributor
timestamp: September 03, 2017, 01:53:25 pm
content: Quote from: Bud on September 03, 2017, 01:23:28 pmWhereas when it hit the building I was standing next to it sounded like half a kilo of Semtex. It was a deafening boom. Different strikes have different characteristics.

author: Refrigerator
author_rank: Super Contributor
timestamp: September 03, 2017, 05:07:41 pm
content: Quote from: Bud on September 03, 2017, 01:23:28 pmYou sure you didn't step on a snake ?

author: rsjsouza
author_rank: Super Contributor
timestamp: September 03, 2017, 05:16:39 pm
content: In my case it was about 50m with two concrete walls in between and the noise was deafening and everything electronic around it rebooted, locked or went through a power cycle. That last bit is what I found most suspicious about the video, but perhaps lightnings indeed strike differently.

author: Ampera
author_rank: Super Contributor
timestamp: September 03, 2017, 05:33:31 pm
content: Quote from: Refrigerator on September 03, 2017, 05:07:41 pm

author: jolshefsky
author_rank: Regular Contributor
timestamp: September 03, 2017, 08:12:43 pm
content: Pretty suspicious as well: in more distant strikes, the column of ionized air remained brightly visible for 5–10 frames (particularly the closer one.) The flash from the supposed strike washed out the camera for only 3 frames, and did not continue to reflect off the . I also agree about the digital camera not having any electrical issues at that distance. It's also telling that if they set off an explosive charge, the camera operator was positioned as to be protected by the wall of the house.I also like to be pedantic, and if indeed this was true, then the guy was not "lucky". He was "not profoundly unlucky." Lucky would be not having lightning not strike anywhere near you.

author: G7PSK
author_rank: Super Contributor
timestamp: September 03, 2017, 09:37:47 pm
content: I was in a house when it was struck by lightning, it hit the chimney and blew the stove through the opposite wall and put the chimney stack through the neighbors roof. All I can say is it sounded like the crack of doom, ears were ringing for hours afterward.

author: BrianHG
author_rank: Super Contributor
timestamp: September 03, 2017, 11:10:37 pm
content: Take it from someone who has witnessed 1 lightning strike to a tree about 50 feet in front of me and another about 1km behind me during the day. Never mind the sound, the flash is so bright, you should have seen a bright strobe in the video all round in the video of the surrounding objects and ground overloading the camera's CCD. This was not present at all in the video.

author: calexanian
author_rank: Super Contributor
timestamp: September 03, 2017, 11:37:55 pm
content: Not addressing the credibility of this video because i am no expert in such things. I can tell you however lightning can hit the ground rather than other what to us would be obvious items such as poles and such. I see it all the time in our control systems where the lightning came in over the buried wires to the field and not the tall steel structure the control box sits upon. As for the sound, its hard to tell from a recording like this. I have been within 100 feet of a lightning strike twice in my life. Once in a car and another time in the open air. It was more of a feeling from the actual strike and the sound came just a split second afterwards. I have always suspected the strike itself just puts a big supersonic standing wave into the air and the rumble afterwards only really presents itself as that wave travels away and bounces and reflects off objects. I equate the sound to a shotgun shell loaded with really hot powder and a very light slug. more pang than bang, with the associated blast of air.

author: floobydust
author_rank: Super Contributor
timestamp: September 03, 2017, 11:45:29 pm
content: It looks fake to me.The garbage can gives it away, didn't even flinch or lose its lid, what's with that.I don't see enough heat and many taller metal objects nearby - no discharge to the clothes hanger, pot stand, table, garbage can, awning handle, eavestroughs etc.A ground strike, due to the high soil resistance, blows up a lot more of the surrounding area.Or tiny streamer hit and rebar in the concrete was the ground.

author: Kryoclasm
author_rank: Regular Contributor
timestamp: September 04, 2017, 06:04:42 am
content: Humm. I looked at it a few more times, it does seem like a orange light on everything.Ok, I'm not so sure anymore.Quote from: Halcyon onYesterdayat 22:34:06;Quote from: Kryoclasm onYesterdayat 22:19:34The "glow" is reflected light coming from the explosives. You can see the thicker poles of the clothes line "glow" just as much as the thin wires.

author: BrianHG
author_rank: Super Contributor
timestamp: September 04, 2017, 06:20:36 am
content: Not only that, but the glow is the wrong color. It's pinkish red, not white-blue...

author: VK5RC
author_rank: Unknown
timestamp: September 04, 2017, 10:23:47 am
content: I have my suspicions about the veracity of the video.I was about 20m away from a lightning hit to a tree, the noise and light of the strike was spectacular - far more than in the video - I recall hearing a tearing sound before the strike (? streamers) for a fraction of a second. Also a lot of soot in the video - we had none of that.Bizarrely the tree survived - it had been raining and bark was removed where I presume water had run down the tree. Bits of blown apart bark nearby but very little char or soot surprisingly.

author: CopperCone
author_rank: Super Contributor
timestamp: September 04, 2017, 07:54:59 pm
content: you would need another lighting strike with a similar camera to know for sure. they do funny things.

author: CatalinaWOW
author_rank: Super Contributor
timestamp: September 05, 2017, 03:49:14 am
content: I don't know if the video is fake or not, but I have been near several lighting strikes. Two about 30 meters away. The first one made an unbelievably loud noise as it struck the ground behind the house across the street (not the house, or trees that were nearby). The second, some years later struck a power pole diagonally across an intersection from me. I was inside a sedan with the windows rolled up, and there was no sound. Fireballs flew in all directions landing up to 10 meters from the pole.Another strike was near my house. I can't tell you what it struck first, but all of the damage found after the strike was in the ground, including several feet of rough glass tubes formed by fusing the sand. The distance to this strike is hard to judge since I didn't see it, but would have been about 150 meters from where I was. Also incredibly loud.The basic conclusion is that lighting is highly variable, and capricious. I would be leary of any generalizations of what it cannot do, or any statistics about likelihood.