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Comment Re:100 megawatt energy storage (Score 1) 64

This is an example of why you should stick to what they know and not just make things up.

Tesla batteries are optimized for applications in Tesla cars. One of the things about electric cars is that you have a few hours to 'use up' all the energy in a battery. As a result of this tesla's "grid" batteries are typically optimized for 2hr and 4hr discharge times, meaning that their "100MW" instillation would be a 200MW-hr or a 400MW-hr instillation.
As a fun aside - this is actually a bit of an issue for the SpaceX rocket, which uses Tesla batteries to run the motors for "grid fins". The issue being that the fins are only run for like 10 minutes, which means the batteries are limited by the power they can provide.

Also, an "intelligent person" would also know that a "MWH" and a "Megawatt per hour" are different things. The former is a measure total energy storage, the latter is a borderline nonsensical unit that mostly serves to tip the well informed off that someone is bullshitting.

To use a crude analogy of why MW and MW-hr are different: Imagine you had a variety of jugs designed to hold water. The size of the jug determines how much water it can hold, but the opening of the jug determines how quickly water can be add/removed. Similarly a megawatt-hour is a measure of how much electrical energy can be stored, while a megawatt is a measure of how quickly that energy can be removed.

Comment Re:As a Californian.... (Score 1) 108

But what does it have to do with gas prices?

California requires unique gas blends when compared to the rest of the US. As a result they've managed to both require a gasoline that is more expensive to refine, and to cut themselves off from the market for gasoline that is operating in most of the US.

Comment Re:i used to live in San Diego county (Score 2) 119

It's specifically designed for conventions, which are by their very nature busy. The point of the system is to move people around the convention center without forcing them to move through the convention center (which would make said convention center even busier).

Comment Re:Don't limit them, enforce compensation (Score 1) 109

Then you come to an arrangement to agree what the cost of "making you good" will be, and how that cost will be dealt with if you leave shortly after training. This isn't a "no compete" agreement.
I've run into this several times in my career, it's not that big of a deal, if done properly the exact costs you'll be on the hook will be spelled out, and those costs will generally be prorated over some reasonable period of time (a few years). My experience being under these has always been that if someone wants to hire you (and the training is relevant) they'll just pay your employer the fee.

Comment Re:Any useful tool is dangerous. Hedge Trim me bab (Score 5, Informative) 81

Any useful tool is dangerous if used incorrectly.

I have one of these sub $300 laser cutters. Out of the box the thing was dangerous even if used correctly.
The risks were not stuff like "There isn't an interlock to stop me from opening the laser while running and sticking my had in the beam path." they were things like "The chassis isn't grounded" or "The window on the machine won't actually block the laser".
I haven't gotten around to making the system fail safe (it's a project for this winter), but it has at least reached a point where a failure should only trash the equipment and not the harm operator.

Comment Ask better questions (Score 1) 177

How about asking a better question?
I mean, I understand that the point of asking a question is to demonstrate mastery of some subject matter, which makes "unexpected" answers tricky. But if you want the leap year question to demonstrate that the student understands how to iterate over a solution space then you should specify that in the question. So instead of asking "Write the static method numberOfLeapYears, which returns the number of leap years between year1 and year2." make it something like "Write the static method numberOfLeapYears which uses iteration to compute the number of leap years between year1 and year2 and returns that value".

Comment Re: Sounds More like a Bug with the Cables (Score 1) 134

You don't know the difference between a amp and a watt, but accuse the other guy of not understanding electricity.
USB-C has variable voltage.
To supply 60W USB-C provides up to 3A at 20V. 20V is a good way to fry a device designed for the Audio Adapter Accessory Mode which is by design limited to 5V.

Comment Re:Contract (Score 1) 347

Except for a few states you can't just fire people for something minor without repercussion or without gathered evidence of repeat infringement.

The only state where you can't "fire people for something minor" is Montana. Every other state operates under "at will employment" which means your employer can fire you for any reason not specifically barred by law (e.g. they could fire you because they don't like the color of your shirt, but they couldn't fire you because you're black). Of course this can be changed by an employment contract, but I haven't seen evidence of one existing.

Comment Re:Who cares? (Score 4, Interesting) 197

If you're using the "firehouse" bulb as your definition of "robust" then many incandescents made in the last 50 years would meet that standard.
Lifetime is approximately proportional to light output ^ -4.
The firehouse bulb is a 4 Watt bulb.
So if you took a 'normal' 40W bulb, and reduced the voltage to make it run at 4W, you'd end up with 10000x the 'normal' life of a 40W bulb (i.e. millions of hours).

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