Lead-based solder is preferred for high-reliability electronics (space, nuclear, military, etc.) because it’s easier to rework, easier to verify by visual inspection, and it’s not vulnerable to tin whiskers.
I’m an electrical engineer living in Los Angeles, CA.
Lead-based solder is preferred for high-reliability electronics (space, nuclear, military, etc.) because it’s easier to rework, easier to verify by visual inspection, and it’s not vulnerable to tin whiskers.
Here’s the relevant safety guides from Stanford and MIT.
In short, if you do a lot of soldering, there are long-term occupational hazards from both lead oxides and rosin. Both guides agree that the main hazards are the fumes (workstation should have a fume extractor or suitable filter) and residue on your hands (wash hands with soap and water before eating).
I couldn’t find any numbers on how much material is removed by washing, but every reference emphasized that soap and water are vitally important.
Does that require admin access? It wasn’t their machine, it was one the school provided for the auditorium.
This wasn’t their machine, it was one the school provided for the auditorium.
I saw that happen once in a big presentation.
There was a team of students presenting their work to ~200 people. Right in the middle, a pop-up says updates are finished and the computer needs to restart. It has a helpful 60-second countdown, but “cancel” is grayed out, so all they can do is watch.
I was only in the audience and I still have nightmares.
Bicycles are heresy confirmed.
I’ve had great luck running HomeAssistant on an R.Pi with the “HUSBZB-1” USB dongle. Zigbee support is perfect so far. Z-Wave required installation of an additional tool, but also working just fine.
Amateurs. Baguette-based high-explosive squash-head (HESH) warheads are the future of improvised anti-tank munitions.
This is the mental equivalent of Saitama’s workout from One Punch Man: 100 sit-ups, 100 pushups, 100 squats, and a 10-km run. (Repeat daily until your hair falls out.)
Important question: Should dragons be equipped with explosive reactive armor?
I’m looking at you, Olórin, Mithrandir, Incánus, Tharkûn, Greyhame, Stormcrow, Láthspell, and/or Gandalf.
I saw that happen once in a big presentation.
There was a team of students presenting their work to ~200 people. Right in the middle, a pop-up says updates are finished and the computer needs to restart. It has a helpful 60-second countdown, but “cancel” is grayed out, so all they can do is watch.
I was only in the audience and I still have nightmares.
This isn’t funny, this is just the sad state of software these days.
IT’S GLUED ON, BROTHER, JUST LIKE EVERYONE ELSE’S. AROOOOOOO!
Want to upgrade your F-91W? The open-source Sensor Watch is a board-swap that uses the same display, housing, and wrist-strap but lets you program your own functionality.
It’s the fortress-ship from Iain Bank’s “Use of Weapons”.
Inside this view of America there are two wolves: