lemming741
@lemming741@lemmy.world
- Comment on 98 degrees upstairs, ac stopped working at 8am. 4 days 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. 4 days 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? 2 weeks 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 3 weeks 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? 3 weeks 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? 3 weeks 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? 4 weeks ago:
Slow Horses intro is called Strange Game Written and performed by Mick Jagger m.youtube.com/watch?v=tegw25qqbAs
- Comment on [deleted] 4 weeks ago:
(50/2)+7 is 32 my guy
- Comment on Finally a map to show me 1 month 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? 1 month 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? 2 months ago:
Living the dream
- Comment on Virgin Physicists 2 months ago:
Its akin to having an electon microscope in your kitchen
- Comment on Virgin Physicists 2 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 2 months ago:
If you trust the gauging, you weigh it.
- Comment on Virgin Physicists 2 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? 2 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.. 2 months ago:
Makes me want to buy one specifically to return it
- Comment on Why can’t HVAC be made smarter? 3 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.
- Comment on A question fucking nobody on Earth asked Toby Keith c. 2001 [Day 98] 3 months ago:
Le Chícks
- Comment on A question fucking nobody on Earth asked Toby Keith c. 2001 [Day 98] 3 months ago:
Pre 9/11 toby was on his way to icon status
- Comment on You guys have to end it 3 months ago:
They’re good for go karts and for auto manufacturers that want their product to be worthless about time you pay it off.
- Comment on You guys have to end it 3 months ago:
Subaru
static.nhtsa.gov/odi/tsbs/…/MC-10231303-0001.pdfHonda
static.nhtsa.gov/odi/tsbs/…/MC-10236086-0001.pdfGM
static.nhtsa.gov/odi/tsbs/…/MC-10213745-9999.pdfMitsubishi
static.nhtsa.gov/odi/tsbs/…/MC-10252683-0001.pdfChrysler uses the Nissan trans and they are king of the shit heap.
- Comment on You guys have to end it 3 months ago:
The Prius system is a modern marvel and deserve a better name than eCVT.
Belt type CVTs are trash. I don’t care that your Subaru has 57,000 trouble free miles, it’s going to die.
- Comment on You guys have to end it 3 months ago:
cvts are reliable Now THAT’S a statement made by the utterly deranged
- Comment on When fighter jets are scrambled to intercept a plane for security reasons, what can they actually do? 3 months ago:
It’s crazy they scrambled with zero offensive capabilities back then. Not even the 20mm cannon was loaded.
- Comment on Whats the green shape in between the three circles ? 3 months ago:
- Comment on Whats the green shape in between the three circles ? 4 months ago:
That’s a whale tail
- Comment on No beans, only dogs 4 months ago:
No Costco dog, list is shit
- Comment on Why is Tesla market cap so high ? 5 months ago:
VW has ~$80 billion cash on hand, they could buy 6% of the shares
- Comment on Why is Tesla market cap so high ? 5 months ago:
Same reason as bitcoin