Old 08-09-2008, 08:26 AM #17
pullbangdead's Avatar
Class 3R Laser
 
Join Date: Aug 2007
Posts: 2,045
Rep Power: 788
pullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond repute
pullbangdead pullbangdead is offline
Class 3R Laser
pullbangdead's Avatar
 
Join Date: Aug 2007
Posts: 2,045
Rep Power: 788
pullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond repute
Default Re: WOW slow-mo lightning strike 100,000,000 V

^Eh, who knows, that whole show was pretty whack. A "happy accident" aboard a space-elevator-satellite saves the world by making the best solar cells ever. Every idea there was just, well, crazy. To me, it came off as too crazy to lend credence to any of the good ideas that might actually make it. The laser part in it, well, who knows what they were talking about. There are certainly lots of lasers capable of doing such things, lasers are used to precisely measure the distance to the moon for instance. But most everything else in there is kind of bunk, so I don't quite buy into any single parts.

But the carbon nanotube guy they show taught one of my classes last year (he's not nearly as good at teaching as he is at growing carbon nanotubes).


pullbangdead is offline   Reply With Quote


















Old 08-09-2008, 08:29 AM #18
Kenom's Avatar
Class 4 Laser
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Kenom Kenom is offline
Class 4 Laser
Kenom's Avatar
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Default Re: WOW slow-mo lightning strike 100,000,000 V

I love how they at the very end of that video show the cable tying that orbital station to the earth. I've read a number of places how they have come up with a new carbon fiber tubules that are along the lines of 50 times stronger than steel and flexible to boot. Make it so that the unreliable and potentially dangerous route of space shuttles and solid fuel rockets will no longer be necessary to get to outer space. GOTTA LOVE SCIENCE.
Kenom is offline   Reply With Quote
Old 08-09-2008, 09:06 AM #19
GooeyGus's Avatar
Class 3B Laser
 
Join Date: Mar 2008
Posts: 2,673
Rep Power: 2701
GooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond repute
Send a message via AIM to GooeyGus Send a message via MSN to GooeyGus
GooeyGus GooeyGus is offline
Class 3B Laser
GooeyGus's Avatar
 
Join Date: Mar 2008
Posts: 2,673
Rep Power: 2701
GooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond repute
Send a message via AIM to GooeyGus Send a message via MSN to GooeyGus
Default Re: WOW slow-mo lightning strike 100,000,000 V

I'd just like to know what camera can film that quickly.
GooeyGus is offline   Reply With Quote
Old 08-09-2008, 08:47 PM #20
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,219
Rep Power: 102224
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,219
Rep Power: 102224
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: WOW slow-mo lightning strike 100,000,000 V

That might be 0.10 seconds with the high speed camera running.

Mike
__________________
Don't freeze yourself to cold steel
Hemlock_Mike is online now   Reply With Quote
Old 08-10-2008, 01:19 AM #21
sk8er4514's Avatar
Class 3R Laser
 
Join Date: Feb 2008
Location: Houston, TX
Posts: 1,809
Rep Power: 76
sk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond repute
sk8er4514 sk8er4514 is offline
Class 3R Laser
sk8er4514's Avatar
 
Join Date: Feb 2008
Location: Houston, TX
Posts: 1,809
Rep Power: 76
sk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond reputesk8er4514 has a reputation beyond repute
Default Re: WOW slow-mo lightning strike 100,000,000 V

Quote:
Originally Posted by GooeyGus
I'd just like to know what camera can film that quickly.
http://gizmodo.com/383843/casio-exil...ingly-powerful

and it's probably filmed at 1200 frames per second
__________________
sk8er4514 is offline   Reply With Quote
Old 08-10-2008, 08:45 AM #22
GooeyGus's Avatar
Class 3B Laser
 
Join Date: Mar 2008
Posts: 2,673
Rep Power: 2701
GooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond repute
Send a message via AIM to GooeyGus Send a message via MSN to GooeyGus
GooeyGus GooeyGus is offline
Class 3B Laser
GooeyGus's Avatar
 
Join Date: Mar 2008
Posts: 2,673
Rep Power: 2701
GooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond reputeGooeyGus has a reputation beyond repute
Send a message via AIM to GooeyGus Send a message via MSN to GooeyGus
Default Re: WOW slow-mo lightning strike 100,000,000 V

Yeah but the quote from the article says:

"I'm not sure exactly how fast this camera is, but it's got to be shooting at a speed faster than the Casio EX-F1 can shoot at, at least at a resolution this high."

I mean, like hemlock mike said, that entire video is a fraction of a second. maybe .2 seconds. That would be 240frames at 1200fps. so 240 frames replayed at 30fps is only 8 seconds, this video is 25 seconds. It's possible that the lightning strike itself lasted a bit longer (it would need to be about .7 seconds long for this to fit), but even at the end of the 25-second video the lightning hasn't 'gone away' yet, so we may only be seeing half of the actual 'strike', meaning the frame rate would have to be REALLY fast.

I dont necessarily think it's fake, but whatever is filming it must be one hell of a camera.

Edit: Just found a camera that can do 2,000,000 FPS. Thats more along the lines of what I would expect to capture something like this. Especially based on the beginning of the video when the charge is searching for a ground, you NEVER see that, not even for a fraction of a second, and it lasted for a good number of frames in the video so the camera filming it must be incredibly fast, which would also explain why the 'strike' lasts for so long.

EDIT again: This one does 1,000,000 fps. pretty badass. http://www.visionresearch.com/ (check out some of the videos on the home page of that site... thats the type of camera I would assume would be needed to capture this.)
GooeyGus is offline   Reply With Quote
Old 08-10-2008, 11:08 AM #23
Junior Member
 
Join Date: Apr 2007
Posts: 11
Rep Power: 0
RossUK is on a distinguished road
RossUK RossUK is offline
Junior Member
 
Join Date: Apr 2007
Posts: 11
Rep Power: 0
RossUK is on a distinguished road
Default Re: WOW slow-mo lightning strike 100,000,000 V

Wow, lightning travels around 60,000 miles per second, so yeah it would have to be ALOT more than 1200fps *

that site quotes:

# 6242 frames-per-second at full 1280x800 "widescreen" resolution
# 1,000,000 pictures-per-second at reduced resolution

So I guess you would have to stitch the photos together using some software.

And looking at that Casio EXILIM Pro EX-F1... well my money is being saved up! *
RossUK is offline   Reply With Quote
Old 08-10-2008, 03:40 PM #24
Dr_Evil's Avatar
Class 3R Laser
 
Join Date: Feb 2008
Location: Hartselle, AL
Posts: 2,308
Rep Power: 24442
Dr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond repute
Dr_Evil Dr_Evil is offline
Class 3R Laser
Dr_Evil's Avatar
 
Join Date: Feb 2008
Location: Hartselle, AL
Posts: 2,308
Rep Power: 24442
Dr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond reputeDr_Evil has a reputation beyond repute
Default Re: WOW slow-mo lightning strike 100,000,000 V

I would have to say that video is real after reading this article.

http://www.visionresearch.com/upload...udy_8Mar26.pdf
__________________
645 to 660 - Z-bolt BTP-8E, jayrob C6 w/LOC
638 - JayRob C6 w/ML520G54
635 - Z-bolt BTE-4S
632.8 - 10mW HeNe
589 - PGL-III-C 80mW(100+ peak/average)
543 - GreeNe
532 - Optotronics RPL-260, Optotronics Pen ~20mW
520 - JayRob C6
514 - Argon SL
488 - Novalux
473 - Lasever LSR473HD-80 - 107mW peak
450 - JayRob C6 w/PL450B
445 - JayRob C6
405 - Old Leadlight that Drlava transformed (33mW), 12x in a JayRob C6 host
Multi - 2214-25MLUP ArIon
Dr_Evil is offline   Reply With Quote
Old 08-15-2008, 12:24 PM #25
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 2560
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Things Things is offline
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 2560
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Default Re: WOW slow-mo lightning strike 100,000,000 V

Those little firework looking things at the start are called "Streamers", they search for the fastest path to ground. The first 1 to reach the ground wins! Follow them in the vid and you will see! It lasts for quite a while due to the air is still super heated and highly ionised. If it didnt, than you would barely be able to see lightning!

Sweet vid tho!!
Things is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 02:51 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC