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Photographer Captures Tiny Lightning Storms with a Mini Tesla Coil

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A violet ray is an antique electrotherapy medical device invented by Nikola Tesla that’s essentially a portable tesla coil. Altdorf, Germany-based photographer Marc Simon Frei purchased a unit from 1920 on eBay and customized it for experiments with photographing electricity at home.

Frei generated electrical discharges in various ways and forms, and then captured them using a Nikon Df, a macro extension tube, and a Nikon 50mm f/1.8 lens.

“Don’t try this at home,” Frei says, “the high frequency voltage could damage your equipment.” Bringing his camera close to the apparatus also caused his LCD screen to flicker.

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Frei has also experimented with creating miniature lightning at home using some stuffing taken from the guts of a teddy bear as clouds. “I wanted to create a private thunderstorm at home,” he tells us.

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You can find more images from Frei’s experiments and follow along with the series in this online photo album.

(via Marc Simon Frei via Colossal)

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1848 days ago
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Comic for May 17, 2014

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2247 days ago
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Comic for May 4, 2014

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Heartbleed Explanation

27 Comments and 116 Shares
Are you still there, server? It's me, Margaret.
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grentz
2282 days ago
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27 public comments
Jerom
2275 days ago
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Я больше шар не видел. Супер пост.
Moscow, Russia
tomazed
2278 days ago
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crystal clear
josephwebster
2280 days ago
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This is actually a very good explanation.
Denver, CO, USA
Tobiah
2281 days ago
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XKCD explains heartbleed
San Jose, California
Lacrymosa
2281 days ago
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good simple explanation of heartbleed
Boston, MA
jchristopherslice
2282 days ago
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Computer Science 101
Clemson, SC
expatpaul
2282 days ago
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The best explanation of Heartbleed I've seen.
Belgium
chrisminett
2282 days ago
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xkcd does it again!
Milton Keynes, UK
katster
2283 days ago
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Simple is good.
Sactown, CA
mitthrawnuruodo
2283 days ago
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Best explanation, yet.
Wherever
mrnevets
2283 days ago
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Heartbleed: a simple explanation. It affected a huge number of websites. Be safe and change your passwords!
macjustice
2283 days ago
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Best explanation yet.
Seattle
jkevmoses
2283 days ago
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Great explanation of Heartbleed that is causing internet security issues all over the place.
McKinney, Texas
srsly
2283 days ago
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You know I'm only sharing this because I've never seen a story this shared before. 56 people! 57 now.

I should get back to work.
Atlanta, Georgia
grammargirl
2283 days ago
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Clearest explanation I've seen by FAR.
Brooklyn, NY
smadin
2283 days ago
yeah, I think this does a very good job of making clear JUST HOW BAD this is.
glindsey1979
2283 days ago
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If you aren't a techie, this will explain the Heartbleed bug to you super-simply.
Aurora, IL
chrispt
2283 days ago
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Perfect explanation of how Heartbleed works.
37.259417,-79.935122
aaronwe
2283 days ago
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Perfect.
Denver
sfringer
2283 days ago
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In a nutshell!
North Carolina USA
JayM
2284 days ago
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.
Atlanta, GA
adamgurri
2284 days ago
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nice
New York, NY
bgschaid
2284 days ago
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You can’t explain it simpler and more to the point
bogorad
2284 days ago
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Умеет!
Barcelona, Catalonia, Spain
Covarr
2284 days ago
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Ah, now I understand.
Moses Lake, WA
rohitt
2282 days ago
Yes. Clear as a day
revme
2284 days ago
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This actually makes it really clear.
Seattle, WA
teh_g
2284 days ago
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Alt text: Are you still there, server? It's me Margaret.
Roseville, CA

Comic for March 30, 2014

1 Comment and 2 Shares
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grentz
2282 days ago
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1 public comment
sjk
2293 days ago
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My gut speaks in Morse code as well.
Florida

Comic for February 23, 2014

2 Shares
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2303 days ago
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