lemming741
@lemming741@lemmy.world
- Comment on Anon tries running live USB Linux on his dad's computer 5 days ago:
- Comment on Anon tries running live USB Linux on his dad's computer 5 days ago:
Cold spare production floor machines. I’m sure there’s a better way, but you build the machine and put it on a shelf maybe 2 years before you need it.
- Comment on Anon tries running live USB Linux on his dad's computer 5 days ago:
My grandpa fixes all of his Windows problems himself
- Comment on Anon tries running live USB Linux on his dad's computer 5 days ago:
My password manager keeps a history, and it has saved my bacon twice now.
- Comment on What's the easiest way to get hookups without seeing escorts? 1 week ago:
This question is kinda like asking what’s the easiest way to get rich quick?
- Easy
- Rich
- Quick
Pick 2
- Comment on Everything is just an ESP32 away 2 weeks ago:
I’ve never bothered to reverse engineer the protocols they use between the main chip and ESP, but I have hooked the main loads, indicator LEDs, and push buttons into my own module. Air purifier, robo vacs, coffee pots, sprinkler controllers, garage doors.
The Shelly uni is awesome for stuff without dc power supplies. I’ve got one in my gas cooktop, and another in the range hood to run the fan any time a burner is on.
- Comment on Everything is just an ESP32 away 2 weeks ago:
What’s funny to me, is that most of the trash tier connected appliances also run an ESP32 but with the opposite design goals
- Comment on That sounds like a fun thing to do 2 weeks ago:
- Comment on American former tech executive explains how to make users more addicted 2 weeks ago:
I come straight to the comments where an article is either copy-paste if it’s worth reading, or called out immediately if it’s click bait or raw propaganda.
- Comment on [deleted] 3 weeks ago:
There are different formulas for concrete, balancing cost, cure time, and ultimate strength.
- Comment on This new SSD will literally self destruct if you push the big red button it comes with — Team Group posts video of data destruction in action 4 weeks ago:
I’ve been H/W Quick Eraseing ESP32s and ATMEL chips for over a decade now
- Comment on Ads when you’re pumping gas 4 weeks ago:
This popped up today, if you’re still interested
lemmyverse.link/lemmy.ca/post/47682873
- Comment on 98 degrees upstairs, ac stopped working at 8am. 1 month ago:
Not quite- these motor capacitors provide a phase shift for a second set of windings. Without it, the motor will just hum and not rotate.
You are describing bulk or filter capacitors that go from supply to common on a DC circuit, parallel to the load. These motor caps are on AC and in series with the load.
- Comment on 98 degrees upstairs, ac stopped working at 8am. 1 month ago:
Motor capacitor for an A/C compressor. A $15 part that a service company is going to charge $400 for a guy missing most of his teeth to replace in 2 minutes.
- Comment on Why do fancy cars look fancy and cheap cars don't? Can't you just slap a Lamborghini-style chassis onto a lawnmower engine if you want? 1 month ago:
Go to a junk yard and look around the import section. Without a front bumper, it can be very hard to tell what make a car is.
- Comment on Ads when you’re pumping gas 2 months ago:
If you charge overnight, the base load is less likely to be fossil fuel. If it is fossil fuel, emission controls on a power plant are far more effective than anything with wheels.
The average car emits 400g CO2 per mile
epa.gov/…/greenhouse-gas-emissions-typical-passen…My power company emits 364g per kWh, which will take an EV about 3 miles. So that’s about 120g CO2 per mile, about one third.
climatiq.io/…/65ad9f91-28a1-45b2-bbab-3dcdd5de6a4… - Comment on If we replace most plastic with a non plastic alternative and would that really be better? 2 months ago:
Yeah it’s like 30% less heat input to melt cullet and you save raw materials. The problem is the quality impact. It’s a similar problem with paper recycling. Part of that is the fault of consumer preference, and I think that’s changing.
www.aigmf.com/…/Cullet Sorting Technologies.pdf
Some info on the challenges
- Comment on If we replace most plastic with a non plastic alternative and would that really be better? 2 months ago:
A 12 oz glass bottle takes roughly 1100 BTUs to melt the glass for. That is conveniently, roughly, 1.1 cubic ft of natural gas.
60,000 BTU/hr is a very common size for natural gas HVAC furnaces. That’s basically a bottle a minute, just to give people an idea.
There are other inputs of course, but furnace net efficiency is around 2200 BTU/lb
- Comment on What TV series has the best intro song or sequence? What TV series have the worst intro song or sequence? 2 months ago:
Slow Horses intro is called Strange Game Written and performed by Mick Jagger m.youtube.com/watch?v=tegw25qqbAs
- Comment on [deleted] 2 months ago:
(50/2)+7 is 32 my guy
- Comment on Finally a map to show me 2 months ago:
Sometimes, the 2nd bullet point is relevant
- Comment on Could wastewater plant simply heat up water past 500C to decompose all chemicals and output clean water? 3 months ago:
You’d have heat exchangers, like a desalination plant
…wikipedia.org/…/Multi-stage_flash_distillation
Such plants can operate at 23–27 kWh/m3 (appr. 90 MJ/m3) of distilled water.[5]
So still impossible, but not unfathomable
- Comment on How do you answer the question "What's new with you?" when nothing happens in your life? 3 months ago:
Living the dream
- Comment on Virgin Physicists 4 months ago:
Its akin to having an electon microscope in your kitchen
- Comment on Virgin Physicists 4 months ago:
Yeah which is why you use a Kibble balance. Are you sure you’re cut out for this kind of work?
- Comment on Virgin Physicists 4 months ago:
If you trust the gauging, you weigh it.
- Comment on Virgin Physicists 4 months ago:
That’s why I keep a spool of 20 AWG nichrome on hand. Spool off 9.7195853528209 feet and it’ll be bang on.
- Comment on Other than a faulty charging port, is there any reason to use a wireless phone charger over wired? 4 months ago:
My partner hates wires and cables. A loose usb c is ugly. A puck is elegant apparently
- Comment on No more Bosch for me.. 4 months ago:
Makes me want to buy one specifically to return it
- Comment on Why can’t HVAC be made smarter? 4 months ago:
Higher trim cars have radiation sensors to help account for solar heat gain.
Honeywell has individual room sensors available that you can average or prioritize.
I think the real reason you don’t see them- the average person is too stupid to understand them and set them up.
