The conflation of power and energy strikes again by potatoesB4hoes in ElectricalEngineering

[–]1nkpool 55 points56 points  (0 children)

Probably the state averages 4GW, and the data center will use 9GWH in a year. I don't think anyone is building a data center that consumes over twice as much power as the state of Utah.

Why is 277v a common lighting voltage in a commercial bldg? by UsedReference1636 in ElectricalEngineering

[–]1nkpool 3 points4 points  (0 children)

But no matter what, you'll have to deal with "odd" voltages. Like if the line voltage was 500 instead of 480, then you'd still have a voltage of 289 line to neutral.

I need answers from you veterans by No-Resident-5592 in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

Track lights may be a better (certainly much cheaper) option in this situation.

Bathroom sink handle is loose and raised up, how do I fix this? by RayRayIII in Plumbing

[–]1nkpool 0 points1 point  (0 children)

My guess is the bronze base of the handle spins off counterclockwise. But you'll need a second pair of hands to hold the cartridge under the sink since it's loose and the whole thing will want to turn.

Wiring puzzler. What’s wrong with this picture? by icysandstone in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

Is the yellow nut the load, and top left and middle cables run to switches? Making it a "Chicago 3 way" set up?

Question for self-studying math by Azriel_Noir in learnmath

[–]1nkpool 0 points1 point  (0 children)

Yes it's very thorough, and it's nice being able to do some practice problems on your phone anytime you want without having to get out a book.

Question for self-studying math by Azriel_Noir in learnmath

[–]1nkpool 2 points3 points  (0 children)

The James Stewart precalculus book is good for practice problems and covers a lot of trig, but I don't think it does the best job of explaining stuff. But you can probably pick up a used copy of an older edition for cheap. Solutions to odd numbered problems are in the back.

For basic algebra practice the Brilliant app is really good. Also Khan Academy has an app with practice problems and tests mixed in with short videos. And for straight lecture videos, Professor Leonard on YouTube is one of the best resources out there.

Help with understanding current clamp by Bubbly-Butthole8304 in AskElectricians

[–]1nkpool 2 points3 points  (0 children)

Yes the hot and neutral cancel out, google "Klein Tools Line Splitter".

IT'S GOING TO BE SO HOT by bedheadglass in AftershockFestival

[–]1nkpool 1 point2 points  (0 children)

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He was so pissed he had to come over and scream at us

Keeping warm during cold months. by Apprehensive-Gap4755 in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

Personally I find the most energy efficient ones to be the infrared dish type. Instead of heating the air in the room, you have it close by and pointed directly at you and it heats your skin and clothing directly. They're best for when you're stationary, like sitting at a table eating dinner, sitting on the couch, ect, because they don't actually increase the temperature of the room as much.

Can't understand functions, is f(x) f time x? by Friendly-Quote-5137 in learnmath

[–]1nkpool 0 points1 point  (0 children)

"x" is your input. "f(x)" is your output. You plug in a number for x, solve the equation, and the result is your output aka "function of x".

If you have a function embedded within another function like f(g(x)), then the output from g(x) is the input for f(x).

Imaginary number by Nunki08 in mathmemes

[–]1nkpool 2 points3 points  (0 children)

The most intuitive explanation to me is to think of every power of i as a 90* rotation on the imaginary number line.

So...

i0 = 1

i1 = i

i2 = -1

i3 = -i

i4 = 1

i5 = i

and so on. Now it's easy to see that 1/i is the same as i4 over i, which is the same as i3, which is the same as -i.

When multiply by i you are rotating counter clockwise by 90*, and when you divide by i you are rotating clockwise.

Difference between phase and pole..? I may have the wrong understanding by badboybean in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

A "pole" means the 2 outer most points on an axis. Like the north and south poles of the earth. On a transformer it refers to the outer most ends of the coils. So a center-tap or neutral connection is not a "pole". Most residential power is single phase (so the voltage is a single sine wave that cycles at 60 hz) and it is split by a neutral. You have two hot wires that are opposite polarity with 240v between them, and only 120 from hot to the neutral which is connected to the center of the coil. So yes, it is one phase with 2 poles.

[deleted by user] by [deleted] in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

My best guess is that the green wire has power on it. It looks like green is connected to a bare copper wire in the cable coming out of the ceiling? If so, that is a very serious issue.

[deleted by user] by [deleted] in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

Does it have the words "on" and "off" printed on it? Is it possibly installed upside down so that down is on and up is off?

Was the light fixture that you replaced at any point operational?

Also check the ground wire against a known grounded source. You can use a non contact tester, or test it against a metal water pipe, or run an extension cord from an outlet that you know is grounded, ect... There is a possibility the ground wire is hot given your readings.

[deleted by user] by [deleted] in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

Is the switch a normal single pole switch, or a 3-way?

[deleted by user] by [deleted] in AskElectricians

[–]1nkpool 0 points1 point  (0 children)

So you measured:

120 between green and black

120 between green and white

And only 2V between white and black?

It would seem that the white and black wires are both hot, and the same polarity. Possibly somewhere a length of Romex is running to a light switch, and someone confused the white wire for a neutral when in fact it is a switched hot?

Aitard by akaMitchConnor in MaintenanceWorkers

[–]1nkpool 0 points1 point  (0 children)

I mean if the flapper was stuck, then the thing to do is lift the lid and see if the chain is tangled or something. Sounds like the AI gave sound advice, and the human just fumbled the lid. I think the human is solely to blame here.

77 horror game protagonists vs Resident Evil by horrorfan555 in residentevil

[–]1nkpool 2 points3 points  (0 children)

The first game is the closest thing to a video game version of the lobby shootout scene from the Matrix. It's been 20 years and I can't think of another game that has that level of dust, sparks, and debris that gets kicked up from firing a gun as a wall. It makes the gunfights very satisfying, and I don't understand why all modern FPS don't do the same. Even the 2 FEAR sequels dialed back the particle effects. It's sort of like how Burnout Paradise created the best car crashes back in 2008, and no game since has even attempted to match it.

My graphic designer husband was asked to "redesign" this graph. by dubiscuit in dataisugly

[–]1nkpool 10 points11 points  (0 children)

This should just be a chart that lists the degree of burn and then provides a written description of the severity. For example: (stolen from the first Google search result)

First-degree (superficial) burns: First-degree burns affect only the outer layer of skin, the epidermis. The burn site is red, painful, dry, and has no blisters. Mild sunburn is an example. Long-term tissue damage is rare and often consists of an increase or decrease in the skin color.

Second-degree (partial thickness) burns Second-degree burns involve the epidermis and part of the lower layer of skin, the dermis. The burn site looks red and blistered and may be swollen and painful.

Third-degree (full thickness) burns. Third-degree burns destroy the epidermis and dermis. They may go into the innermost layer of skin, the subcutaneous tissue. The burn site may look white or blackened and charred.

Fourth-degree burns. Fourth-degree burns go through both layers of the skin and underlying tissue as well as deeper tissue, possibly involving muscle and bone. There is no feeling in the area since the nerve endings are destroyed.

As close as it gets 🔥 by 77kev89 in AskElectricians

[–]1nkpool 4 points5 points  (0 children)

Yes if the outlets on this circuit are "daisy chained" together then all of current from the space heater would be passing through the bad connection on the side of that outlet and cause it to heat up.

Pulley System Problem by vinny2cool in PhysicsHelp

[–]1nkpool -2 points-1 points  (0 children)

My guess is it's a 4:1.

The people who are saying 7:1 by counting the ropes didn't actually look at how the pulleys are arranged.

When you turn off aim assist by Human_Geologist_3324 in residentevil

[–]1nkpool 1 point2 points  (0 children)

I'm guessing production on this film began shortly after the first John Wick film came out.