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Comment Re:Skepticism (Score 1) 53

This is from Bard. It got a decimal place wrong, 5143 inches is 130 Meters, not 1304 Meters. Regardless, my 12' claim is about 35x too generous for just 10 miles. I think the average canal would be a LOT longer than 10 miles.

Q: At 240V and 22,176A, how thick would wire need to be to go 10 miles
A: The wire thickness required to go 10 miles at 240V and 22,176A is 5143.67201113734 inches or 1304.7222053151 meters.

Here is the Python code I used to calculate the wire thickness:
Python

import math

def wire_thickness(voltage, current, distance):
    resistance = voltage / current
    cross_sectional_area = math.pi * (resistance ** 2) / (2 * 8.854e-12)
    diameter = 2 * math.sqrt(cross_sectional_area / math.pi)
    return diameter

print(wire_thickness(240, 22176, 10 * 5280))

The formula for calculating the wire thickness is:

diameter = 2 * math.sqrt(cross_sectional_area / math.pi)

Where:

        diameter is the thickness of the wire in inches
        cross-sectional area is the area of the wire in square inches
        pi is the mathematical constant pi, which is approximately equal to 3.14

The cross-sectional area of the wire can be calculated using the following formula:

cross_sectional_area = math.pi * (resistance ** 2) / (2 * 8.854e-12)

Where:

        resistance is the resistance of the wire in ohms
        8.854e-12 is the permittivity of free space, which is a physical constant

The resistance of the wire can be calculated using the following formula:

resistance = voltage / current

Where:

        voltage is the voltage of the power supply in volts
        current is the current flowing through the wire in amps

In this case, the voltage is 240V, the current is 22,176A, and the distance is 10 miles, which is equal to 52800 feet.

Plugging these values into the formulas, we can calculate that the cross-sectional area of the wire is 1.5882e-08 square inches and the diameter of the wire is 5143.67201113734 inches.

Comment Re:Skepticism (Score 1) 53

The $180 Enphase inverters are generally considered decent microinverters.

A 400W panel is roughly about 4x8'. Stacked across the canal single file sideways would be 100W/foot. At 240V, that would be .42A per foot.

12 gauge Romex (commonly yellow jacketed) is rated for 10-20A.
This means your ordinary Romex can go 47.6 feet w/o a safety buffer.

A 1000 foot run would be 420 Amps. A single THHN 400 37 wire can handle 380A. It's .82 of an inch for each wire (Romex contains 3) and over a pound per foot. Using this wire you could not even go 1000ft (about 1/5 mile). The diameter is logrithmic. If you want to cover dozens of miles, 12' diameter wire is not hyperbole; it's generous. Microinverters do not work for more than a few dozen feet.

Comment Re:Skepticism (Score 1) 53

Also, long runs of relatively low-voltage AC are safer than stringing together panels into a high-voltage DC run.

Ya, because 12 foot diameter copper cables are cost effective. Please read up on Ohms law. There's a reason why transmission level power lines are over 100,000 volts. Microinverters only work when you're going over extremely small distances, like from your roof to your attached garage under your roof. If you're not space constrained, add one extra panel to get more power at a much lower cost using a centralized inverter. You'll also save money by running a lower gauge wire because of the higher voltage. All modern panels have bypass diodes to stop a single panel, or group of cells in the panel, from dragging down the whole chain. The only time microinverters make any sense if when you have room for a limited number of panels, you want the most power, and you're willing to pay a substantial price premium for that few extra percent. Enphase microinverters double the price of your panels as they cost as much as the panels themselves, and are paired one to one. You're roughly paying 40% more to get 2-5% more power. Stand alone inverters are downright cheap in comparison.

Comment I can't wait (Score 1) 44

I regularly hit 200 - 300 tabs in a day. And that's not an exaggeration or joke. I have to toss entire sections into OneTab but it only saves a windows worth, you can't just go "save all my work for later". Sometimes it's easier to simply reboot and "crash" chrome and then hit Alt-Shift-T over and over to bring back all the tabs--which becomes kinda crazy when every YouTube video and news article with a video starts playing at the same time.

Comment Re:Silly (Score 1) 390

Think about this: It's more acceptable to praise a literal Nazi general Rommel... than a confederate general.

Which is also funny, because tons of generals are praised throughout history even if they massacred tens of thousands, or were in support of "literally Hitler". Just make sure you don't mention a confederate general because... slaves.. or something.

Comment Remember when... (Score 5, Insightful) 404

Remember when CNN et al cut the footage of Trump's visit to Japan to make him seem like a baffoon? The video cuts all the sections where he feeds the fish, and then only shows the Japanese PM gentlely feeding the fish, then a cut to Trump dumping the box in (it was only the remains of the box, following exactly what the PM did).

So clearly, Facebook, Twitter, et al, are going to ban that video for being directly manipulated. right? ...RIGHT?

And clearly CNN et al apologized for directly editing footage to smear a president. Right? ...RIIGHT?

Hate Trump's policies all you want. But nobody can even remotely, objectively, suggest that the media has been playing fair in its portrayal of the current president. How many body-shaming cycles of "small hands, he wears a wig, he paints his face"? Because everyone who is moderate can hear the screaming hypocrisy even with noise cancelling headphones and earplugs jammed into our heads.

Remember when they openly debated whether his child had AUTISM? That kid had to go to school after the entire nation (and world) publicly debated whether he was retarded. Imagine the kind of bullying that kid got. A child whose only crime was being born to someone the world hates.

Comment Re:How is the number of kickstarters dropping? (Score 5, Insightful) 55

The last thing most people do, when they get "free time" from being laid off, is start working on their own because they get depressed. Because men find most of their self-worth from their work (including having a boss / paycheck / etc as proof of your talents/hardwork). Which is also, fun fact, why retired men either get part-time jobs or just die. Their testosterone goes to zero and they just rot away because, in their minds, they're not needed anymore.

Comment The bias is real (Score 0) 151

It's SUPER convenient that this post makes ZERO mention of the fact that Trump __forced__ GM to make these ventilators after they refused to.

https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.usnews.com%2Fnews%2Fna...

>"Our negotiations with GM regarding its ability to supply ventilators have been productive, but our fight against the virus is too urgent to allow the give-and-take of the contracting process to continue to run its normal course," Trump said in a statement. "GM was wasting time. Today's action will help ensure the quick production of ventilators that will save American lives."

>Trump in the tweets said GM was not making ventilators quickly enough and would produce far fewer than originally agreed upon.

So I think I've got it figured out. Blame Trump if he does something wrong (good), and then shove our thumbs up our asses and forget whenever he does something we _do_ want. I'll be sure to adjust my posting to submit to Slashdot implied terms of service.

Also, while we're at it. I believe the New Rules also include somehow pretending we can trust China's official COVID-19 numbers as "much lower than the terrible USA". It's not like a month ago we were all "supporting" Hong Kong protesters against China (fun fact: They're still out there protesting after everyone forgot about them), or that China kicked all the foreign journalists out of the country to prevent "biased" reporting, or that there are videos of people being denied access to hospitals. Nah, we can trust them.

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