Leavingoldhabits

joined 3 months ago
[–] Leavingoldhabits@lemmy.world 4 points 6 hours ago

I’m not with that company anymore, but given the right audience, ‘that time the server room blew up’ is a big hit.

It could have gone way worse. A stressful lesson and a good story is best case scenario outcome when stuff hits the fan.

[–] Leavingoldhabits@lemmy.world 33 points 10 hours ago (3 children)

Years ago I worked for a large-ish post production company. They had recently moved into a swanky new location and everything there was tailored to spec, including the server room. In norwegian we sometimes call a server room a ‘machine room’, this is relevant.

As a part of the server room spec, a dry fire suppression system was among the requirements.

The summer of the incident was particularly hot, and we experienced some trouble with our cooling, so a cooling technician was called to have a look. While he was working on the unit inside the server room, he made a mistake that caused all the cooling gas to dump into the room, triggering the fire extinguishers.

A dry fire system works by releasing an inert gas into a space to displace any oxygen, effectively choking any fire. I imagine this is usually done by some solenoids opening some canisters of gas and the room quickly, but gradually becomes oxygen free. Luckily, my boss at the time was present and he quickly got both himself and the tech to safety.

All good right? No. The contractor who constructed the new location had ordered and installed a system meant for maritime machine rooms, not the computer ‘machine room’ we had. In an environment filled with fuel and grease, you optimize towards filling the room with an inert gas as quickly as possible, and it turns out they use explosives to complete the task. In this room there were three canisters in the ceiling with fire shooting out of them, burning pellets to generate the inert gas. The gas and smoke from the canisters combined with the leaked cooling gas, and started condensing.

Into hydrochloric acid.

While all this was going on, all of the servers and workstations were happily humming along, sucking the now extremely corrosive atmosphere into themselves, making sure that every nook and cranny inside and outside got covered in a thin greasy film of acid.

The aftermath: Mine and two colleagues’s summer break was cut short, as we were called in to do damage control. Ripping out and wiping hard drives clean was what we did all summer. With external help we managed to recover all of the data. One feature film was delayed a few weeks. The insurance payout actually made the company a bit ahead financially. As far as I know there’s still burn marks in the floor of the server room, from when flames shot out of the fire extinguishers. Everyone involved now knows what a proper dry fire suppression system for a server room looks like.

The kicker is, the cooling was messed up because a fabric awning on the building had fallen down and was covering the air intake. If anyone had thought to check the roof this whole thing would have been avoided, and that server room would probably still have bombs attached to its ceiling.

Good ifra, unfortunately my engineering skills stop at desk-sized

[–] Leavingoldhabits@lemmy.world 3 points 1 week ago (2 children)

Hah! Thanks, I’ll let you know! Maybe I can set up some guerilla style exhibition in a nearby alley 😂

Thanks! I appreciate the feedback. I don’t crop shots done with this camera, I want to preserve the organic borders and learn to live with what is captured without messing too much with it.

However, I halfway agree with your observation, on a small screen this really could do with a tighter framing, or maybe bringing the model closer to the camera. But in a larger print (this is one of two shots Ive printed in 80x80 cm), the airy composition works really well.

I refuse to ignore you!

 

This is a fairly old one, from a few months after the camera was built. An artist friend asked me to document one of his rooms, he was into installation and sculpture at the time. I agreed on the condition that I had complete freedom in how the documentation was done.

This was the second time working with this model, and she is one of the very few models I’ve worked with for whom the time shift effect has properly ‘clicked’. No direction required, just time and play. The blanket-waterfall stuck.

Scanned top to bottom in about two minutes.

That webside felt like cancer

Deus Ex is amazing, if you can get passed the aged graphics, it’s a masterclass in storytelling and game design.

That’s really nice

[–] Leavingoldhabits@lemmy.world 4 points 1 week ago* (last edited 1 week ago)

Slightly toast two slices of whole grain bread in a buttered pan, between them, you put butter fried chanterelle mushrooms, sprinkle with a pinch of salt and freshly ground black pepper to taste. Bonus points if you found the the chanterelles yourself.

[–] Leavingoldhabits@lemmy.world 2 points 3 weeks ago (1 children)

As for busy road at night, I’m afraid that with this way of doing scanning photography it would be quite uninteresting. The motion is way too quick, and cars would render as with either weird vertical lines or very small diagonal squiggles, depending on which direction you scan.

I suggest looking up some talks by the Italian photographer Adam Magyar, he’s done some great talks on transchronologal (?) photography, and is a great artist himself.

[–] Leavingoldhabits@lemmy.world 2 points 3 weeks ago

I love the small insights into signal theory/processing generated by this image, this is really cool stuff! Thank you for chiming in.

[–] Leavingoldhabits@lemmy.world 1 points 3 weeks ago

Of course there’s some ancient broadcast standard at the bottom of 44.1khz, thanks for the clarification! (I work in film/TV and still struggle with explaining explaining ‘illegal’ values to some clients on certain deliverables)

 

The nyquist sampling theorem is a cornerstone of analog to digital conversion. It posits that to adequately preserve an analog signal when converting to digital, you have to use a sampling frequency twice as fast as what a human can sense. This is part of why 44.1 khz is considered high quality audio, even though the mic capturing the audio vibrates faster, sampling it at about 40k times a second produces a signal that to us is indistinguishable from one with an infinite resolution. As the bandwidth our hearing, at best peaks at about 20khz.

I’m no engineer, just a partially informed enthusiast. However, this picture of the water moving, somehow illustrates the nyquist theorem to me. How perception of speed varies with distance, and how distance somehow make things look clear. The scanner blade samples at about 30hz across the horizon.

Scanned left to righ, in about 20 seconds. The view from a floating pier across an undramatic patch of the Oslo fjord.

*edit: I swapped the direction of the scan in OP

 

cross-posted from: https://lemmy.world/post/17697235

One of the results of a collaboration with a dancer. Once the motion-aspect of scanning photography clicked with her, it was a blast playing around for a few hours. This is a quick scan, left to right in about 20 seconds.

 

One of the results of a collaboration with a dancer. Once the motion-aspect of scanning photography clicked with her, it was a blast playing around for a few hours. This is a quick scan, left to right in about 20 seconds.

 

The last shot I posted gained some traction, so I felt like sharing some more of what I’ve done with my scanner camera. The scan is done from top to bottom in about 2 minutes, the model did a great job of staying still throughout.

While scanning motion is definitely eye-catching and spectacular, there are other qualities to appreciate. The gorgeous soft, yet tack sharp aesthetic of large format photography is easily available with a scanner.

Usually I fight the IR-super sensitivity of the sensor, but this time it made her skin iridescent against the rock in the background.

 

Taken on a small group of Islands in the Oslo fjord, called Hvasser. A 15 meter peice of fabric playing in the wind, scanned right to left in 21 seconds. Got really lucky with the clouds this time, allowing a single beam of sunlight in as a highlight.

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