quickthrowman

That makes sense, the boreal taiga forest of Eurasia and North America covers over 10% of earth’s land.

If I were to tackle this project, I’d use an ESP32 and a relay with 120V contacts. That way you can use a GFCI receptacle and be code compliant if your darkroom is in a basement or the enlarger receptacle is near your darkroom sink.

I hope you had a speech you gave to the drywall crew on each new project, something like:

“This is my hammer, it would do you well to remember it. If you don’t bury my boxes, you will not see my hammer again. If you bury my boxes, I guarantee you will see and feel my hammer. The decision is yours.”

I assume they sent the email at least one minute prior to publishing the article when the sentence is phrased like that, it doesn’t really mean anything other than “We have asked them a question and have yet to receive any reply”. The waiting period could actually be a single minute and still be truthful.

Most drywall is installed in commercial buildings with drop ceilings, not houses. Tenant spaces usually get rebuilt every 10 years.

It’s dead ass simple when 95% of the walls extend beyond the grid, there’s very little hardlid ceiling in most commercial spaces.

Professional drywallers have panel hoists that can lift drywall 12’ tall.

Not necessarily, a non-SCUBA trained electrician may choose to bid the job with the condition that the customer drains the pool before the electrician starts their work.

I have some electricians that work for me with rope access training and certifications, sometimes we bid a job using rope access instead of a hydraulic lift if it’s cheaper to do it that way. It all depends on the project and your competition.

They’re engineered like this because 99.9% of tape storage media is sold to corporations who store their backups in climate controlled buildings with backup generators.

Easy, it’s cheaper to pay the electrician to use his SCUBA gear than it is to drain and fill a pool with water.

Drywallers don’t understand anything except “it’s my turn to hang gypsum board.” It will be one of the first trades that is completely automated.

Mechanical, electrical, and plumbing contractors need to understand the most since their work goes all over the building and they’re on the project from start to finish.

Drywallers just come in and put up gypsum once walls have been framed and MEP has been roughed in, and then they leave.

Tapers and mudders command my respect, that’ a difficult trade to perfect. Holding up 4’ x 8’ sheets of gypsum and screwing it to studs might be hard work but it’s dead ass simple.

> Residential has to deal with individual home owners, house flippers, renovation GCs and weird change orders

In other words, the customers are awful. I sell and run commercial and industrial electrical work, I’d rather go do something completely different as a career than deal with homeowners, flippers, and residential GCs. The work itself has zero challenge and requires almost no thinking, it’s not hard to pull and fish romex through finished walls.

What do you mean? I’d much rather pay $30 for a separate LED driver and LED module that will last x0,000 hours and comes with a five year warranty instead of crappy LED lamps that last a few thousand hours.

Cooper makes the HALO RL series LED can retrofit modules that can be had for $30 with adjustable color temp and dimming capable, with a five-year warranty.

I always see people complaining about failing LED lamps. It’s almost always because people are using lamps rated for open fixtures in enclosed fixtures. If it’s not a table lamp or standing lamp, it’s likely an enclosed fixture. A recessed can with an open bottom is considered an enclosed fixture, and so is an open-bottom chandelier globe.

I suggest only buying enclosed rated fixture lamps because they put out less heat and will last longer in an open or enclosed fixture.

There are LED lamps rated for enclosed fixtures. If you buy and use them in enclosed fixtures, your lamps will last longer.

A recessed can or “upside down” ceiling fan globe with an open bottom is technically an enclosed fixture since heat rises.

Contractors. There are companies that provide cash handling and equipment maintenance services.

The only country in the entire world that has a name that contains the word ‘America’, the United States of America.

I don’t know why people think they’re clever when they pose this rhetorical question, particularly when someone is stating their nationality. The demonym ‘American’ refers to a citizen of the United States of America.

> Deploy troops to Ukraine it wont trigger nuclear war.

I’m not as eager as you are to test the resolve of Putin re: nuclear weapons. Once the button is pressed, the game is over for everyone.

There is no radiation dose from vaping. The nicotine is either extracted from tobacco or synthesized in a laboratory. The paper said the polonium sticks to tobacco leaves and I would bet the lead comes from the soil and it remains in the plant material.

Haven’t you heard? Robots are going to care for the huge portion of the Japanese population over the age of 65, which is currently 30% of the population. Yes, this is a real plan that the Japanese government has.

https://japantoday.com/category/tech/japan-biz-labor-scarce-...

Allowing foreigners in would disrupt the glorious harmony of Japan, so robots it is.

Every retailer you switch to also notices your buying power and charges you twice as much. Now what?

Condensate is not suitable for drinking and 99.9% of homes don’t have a separate gray water plumbing system or storage tank. Even the evaporator coil in the furnace/fan coil unit is going to be dirty, and the condenser coil outside is definitely filthy.

Construction permits for housing also ensure that the next owner of the house isn’t dealing with a bunch of problems down the road due to substandard methods and materials. That’s the primary benefit in my opinion, along with life safety.

94% of the US population lives in a metropolitan or micropolitan area. There are ‘micropolitan’ areas in my state that’d I would colloquially consider rural, and there are large areas of the metropolitan area I live in that I would consider rural.

If a water system doesn’t have capacity for a data center, they shouldn’t connect the data center to the water system.

When you apply for a connection to a utility, they make you tell them your potential usage so they can assess if they can even connect you.

500kW is basically 0kW when it comes to data centers. That’s only 600A at 480V three-phase, a McDonalds restaurant has a larger electrical service than that, lol.

I have more than one customer with a single motor that uses that much power.

Oil is an input cost to everything, if the price of oil goes up, so does everything else. Some forms of demand are inelastic, which means people will continue hitting the rising ask as prices go up. Commodity prices going up definitely causes inflation.

> with a electric heat pump you only need 1/6 J to get 1J of heat

The COP of a heat pump is not fixed at 6, it’s dependent on the delta T between the evaporator and condenser. As delta T grows, efficiency drops.

An air source heat pump will have a COP of 2 with a delta T of 70F/39C and a COP of ~4-5 with a 10F/5.5C delta T.

I’ve only ever seen a COP higher than 6 in a system that had a chilled water loop with chillers and cooling towers.

> One of the ways to prevent theft is to insulate the power lines going into neighborhoods.

This is going to be less effective going forward due to insulation piercing connectors, which simply clamp around an insulated conductor and pierce the insulation to connect to the conductor underneath.

A suitably insane person could also just strip the insulation from a small segment of the conductor, one phase at a time, and hand wrap a splice conductor around the live one and tape it up.

Great news for the monkeys though! I would not want to witness a monkey making contact with two uninsulated conductors on different phases, yeesh.

Car insurance is a terrible example to use, drivers and cars are not fungible. The risk of insuring a driver and/or vehicle has a lot of variance.

Do you want Amazon charging you twice as much for a product as someone that has half as much disposable income because they’ve determined you can afford to pay more for the exact same physical item?

Homeowner’s insurance does not cover replacing a roof after 5 years if poor workmanship or substandard materials are the reason that replacement is needed.

> 4. As long as there’s a neutral line, i think any common mode should be rejected, in which case this should be fine?

The (grounded) neutral conductor actually completes the circuit, a wye/star transformer has a grounded neutral and the primary and secondary neutral terminals are bonded. The return path is ground and all of the transformers are linked together via the grounded neutral.

Apparently this can be mitigated by wiring a capacitor into the grounded neutral path of a wye transformer.

I’m not an EE, just an electrical PM who knows enough to be dangerous :)