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4hv.org :: Forums :: General Chatting
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Post Your Cool Video Here!

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Dr. Drone
Mon Mar 21 2016, 04:27PM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
shades Ahhh
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Artlav
Wed Mar 30 2016, 09:10AM
Artlav Registered Member #8120 Joined: Thu Nov 15 2012, 06:06PM
Location: Moscow, Russia
Posts: 94
Big Xenon lamp turned into a box of sunshine:


Addressing some safety concerns of the above:


And some cute fluid dynamics from an oxygen-starved candle:
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Dr. Drone
Mon Apr 11 2016, 08:36PM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
shades ahhhhh
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Mads Barnkob
Mon Apr 11 2016, 08:56PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
On my way home from work I passed a offshore wind farm.

The reef contains the first large scale offshore wind farm in the world, Horns Rev 1 (160 MW from 2002).

80 turbines are laid out as an oblique rectangle of 5 km x 3.8 km (8 horizontal and 10 vertical rows). The distance between turbines is 560 m in both directions.

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Mads Barnkob
Tue Aug 02 2016, 11:41AM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
The shortest and most crazy rain storm I have ever witnessed, it lasted only a total of 3 minutes and left the streets flooded. I only managed to film 1½ minute of it, but that is still the part where you can see it picks up in pace and almost dies out in the end.

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Conundrum
Wed Aug 03 2016, 04:58AM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
Lots of lightning?
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Conundrum
Sat Aug 13 2016, 04:57AM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
Link2

I think this might be a power line arc but still cool nevertheless. It appears that whatever this is seems to be picking up debris and ionizing it.
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Nik
Thu Dec 22 2016, 05:05AM
Nik Registered Member #53 Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638
I build a Paul Trap from stuff you all own. Totally worth the half hour of work.



/borked the embedding
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Mads Barnkob
Thu Dec 22 2016, 07:33AM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
Nik, Great results from a simple experiment, i will definately try that :) Great video.

You only need the video code in the embed tag.

Here is a small bug that took long to film in focus, while it did its rather special recovery from stuck on back.

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Uspring
Fri Dec 23 2016, 12:44PM
Uspring Registered Member #3988 Joined: Thu Jul 07 2011, 03:25PM
Location:
Posts: 711
Neat experiment, Nik. Did you use a line driven NST as high voltage source?

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