Author Topic: Fun for nerds  (Read 215205 times)

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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #700 on: March 15, 2025, 11:02:49 pm »
This Material Gets Bigger When You Squish It
The Action Lab



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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #701 on: March 30, 2025, 04:33:10 pm »
Does the Universe Have a Maximum Temperature? The Planck Temperature Explained
Physics Explained



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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #702 on: April 01, 2025, 07:38:03 am »
Welding visualization system uses intense pulsed lighting to outshine electric arc, laser cutter
Applied Science



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Online BrianHG

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Re: Fun for nerds
« Reply #703 on: April 08, 2025, 01:23:04 am »
How to disable a robot dog if it attacks you:


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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #704 on: April 11, 2025, 07:39:37 am »
Unusual Shop Tips
Dan Gelbart



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Online Analog Kid

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Re: Fun for nerds
« Reply #705 on: April 11, 2025, 08:11:38 am »
Wow, very nice: excellent tips passed down by an old guy.
"Pecking"; I'm going to have to try that soon.
 

Online coppercone2

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Re: Fun for nerds
« Reply #706 on: April 13, 2025, 06:16:11 am »
 

Online David Hess

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Re: Fun for nerds
« Reply #707 on: April 13, 2025, 09:21:13 am »
Reminds me of a friend whose software business moved into a new and larger office in an industrial park.

After a couple weeks, the business' alarm started going off randomly in the very early morning, but no evidence of an intruder was ever found, and nothing was wrong with the alarm system that they could tell.  After a couple weeks, it was discovered that the air conditioning was turning on late at night and blowing some helium balloons from the opening party around in the office setting off the motion detectors.
 

Online Analog Kid

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Re: Fun for nerds
« Reply #708 on: April 13, 2025, 09:36:07 am »
Well, since we're on the subject of one thing leading to another, that reminds me very much of a fire we had at the hardware store I worked at, which nearly burned the damn place down.

It started at night in the receiving area in the back, which is where we kept a couple plastic buckets for recycling batteries.
One of them had lots of lithium coin cells in it, all untaped.
The security cam caught the fire starting, as two or more cells shorted each other out with enough energy flowing to ignite them. The fire grew and set the bucket on fire, which was at the bottom of a plywood-covered wall, which also caught on fire.

But no alarms went off, because the owner had decided not to install any fire alarms in that part of the building. So the fire grew and grew, setting more and more of the wall on fire, all of this caught on cam.

Which would have eventually burned a lot of the building, if not all of it, if it weren't for the lucky break. That was the fact that there was a large glass jar next to the bucket of batteries. When the fire got hot enough it started scorching the jar, which was sealed. The jar burst, and the noise of it exploding set off a sound alarm. That alarm alerted a security check--not from the fire dep't. but from the local police, who were expecting a burglary. When they saw smoke pouring out from around the roll-up door, they called the FD, who saved our building. (It was pretty well flooded when I came in to work the next day, and the wall was totally scorched.)

Oh, and after that we kept the battery buckets outside in our shed, and were careful to tape each cell before tossing it in.
 

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #709 on: April 16, 2025, 09:52:15 am »
Testing New SUPER LASERS... These will take over the maker industry!
Joshua De Lisle



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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #710 on: April 16, 2025, 10:24:23 am »
SUPPRESSED Technologies, Their Inventors ELIMINATED (part 1)
Universe Inside You



Forbidden Technologies and The Silencing of Their Inventors (part 2)
Universe Inside You



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Online BrianHG

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Re: Fun for nerds
« Reply #711 on: April 17, 2025, 08:17:03 pm »
Some 'Fun For Nerds'....

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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #712 on: April 19, 2025, 05:40:29 pm »
Universe In A Box
Buttered Side Down



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Online Analog Kid

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Re: Fun for nerds
« Reply #713 on: April 19, 2025, 06:05:55 pm »
Hmm; buttered side down is an immutable law of physics, innit?
 

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #714 on: April 21, 2025, 10:39:21 am »
Turning Waves Into Particles
Huygens Optics



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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #715 on: April 22, 2025, 03:54:20 am »
How Hoover Dam Works
Animagraffs



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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #716 on: April 28, 2025, 02:31:29 pm »
The Story of Information Theory
Visual Electric


(The continuation of this other one from a year ago:  https://www.eevblog.com/forum/chat/fun-for-nerds/msg5541843/#msg5541843)

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Online coppercone2

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Re: Fun for nerds
« Reply #717 on: Yesterday at 01:55:40 am »
 

Offline TheWaterbug

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Re: Fun for nerds
« Reply #718 on: Yesterday at 11:01:30 pm »
If I were to hide this in someone's attic:



Would it:

1) Work as intended?
2) Be an act of war?
 


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