JohnDClay

joined 2 years ago
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[–] JohnDClay@sh.itjust.works 4 points 3 weeks ago

They did some testing with it, but I don't think it is fully qualified.

[–] JohnDClay@sh.itjust.works 16 points 3 weeks ago (8 children)

They're the only planes that can carry the biggest bunker buster massive ordinance penetrator.

[–] JohnDClay@sh.itjust.works 0 points 2 months ago (2 children)

Sources? Anyway, to get a good sized grid to smooth out intermittency, you'll need to connect all Europe or more. I think there's already some of that, but the longer distances you go, the more loss. I agree pumped hydro is a good option, but the promising sites tend to be quite limited when you try to scale up to a full grid. Plus the ecological concerns that come with dams need to be weighed too.

[–] JohnDClay@sh.itjust.works -4 points 2 months ago (1 children)

Finite resource goes for battery minerals even more so, and solar production capacity is also limited.

Agree on offshore wind, but it's also got intermittency.

You can save money with solar and batteries, but only after about 30 years. That's a much longer payback time than any other forms like nuclear. Plus you wouldn't have representative grid loads overnight.

The costs you cited are just for the panel electricity, not taking into account any storage.

Right now it costs about $400/kwh. You'll need about 12 hours storage to cover over night, which means about $50k/kw. If the lifespan is 20 years, (which is generous) that means the added cost is 28 cents per kwh just for the storage. I'm sure the batteries will get more efficient, but they will also be in more demand, so that price could go up or down.

Do you have better numbers showing 100% solar is cheaper than nuclear? Why is nuclear bad? It's less deaths than even wind energy and is a proven technology to minimize emissions. Why limit yourself?

[–] JohnDClay@sh.itjust.works 2 points 2 months ago

I have no idea. But maybe the gravitational location would appear to asymptotically approach the event horizon similar to how light from an object would appear to just approach the horizon and then stay there.

[–] JohnDClay@sh.itjust.works -4 points 2 months ago (5 children)

I'll need substantiation on the cheaper. Batteries are expensive! And transmission loses get excessive after very long to distances.

[–] JohnDClay@sh.itjust.works -2 points 2 months ago* (last edited 2 months ago) (6 children)

Batteries plus solar to equal a constant output power is much more expensive than nuclear. It's when you have other sources that you can have less storage that solar gets cheaper.

[–] JohnDClay@sh.itjust.works 8 points 2 months ago (7 children)

It's still to be determined if at a 90% renewable grid whether adding nuclear or wind/solar will be cheaper. You'll need a whole lot more energy storage the closer you get to 100% intermittent renewable, so having some reliable base load with nuclear is likely cheaper.

[–] JohnDClay@sh.itjust.works 8 points 2 months ago

You have your profile set to public? Why not just share with your friends?

[–] JohnDClay@sh.itjust.works 2 points 2 months ago (1 children)

If you insist. Would you be so kind as to stop commenting on my comment then as well?

[–] JohnDClay@sh.itjust.works 1 points 2 months ago (3 children)

Why do you do this?

[–] JohnDClay@sh.itjust.works 1 points 2 months ago (5 children)
 

For the 100th anniversary in 1954, Sylvania set this picture up with thousands of flash bulbs.

https://www.trainorders.com/discussion/read.php?2%2C698857%2Cnodelay=1

Apparently the fireworks were added in post.

 

So many Doritos to choose from.

Interesting plane spotted over Chengdu, looks like a side by side seated trijet.

https://www.twz.com/air/china-stuns-with-heavy-stealth-tactical-jets-sudden-appearance

https://youtu.be/oPM67JZuPjA

 

Scott Manley video, looks like the hold down claps may have ripped the bottom off the booster, allowing it to take off.

 

XiaoHao2 took these pics and videos from across the China boarder with a dgi drone in 2020. They uploaded just recently. Here's some more pics

 

OnStar reports location and speed data to the car manufacturer. Sometimes they will sell this data to insurance companies to raise your premium, as several news stores pointed out a few weeks ago. I couldn't really find an advantage to OnStar, (I have my phone to call emergency services) so I disabled it by pulling it's fuse.

For my 2019 bolt, it's f31 in the instrument panel fuse box, just down and to the left of the steering wheel. The fuse box cover comes off when you pull it hard from the bottom.

I was able to find which fuse went to OnStar in the owners manual and labeled on the inside of the fuse box cover. You should be able to find it for your model car there too if it uses OnStar.

I did have the casualty of my speaker for calls and texts. I'm not able to use it right now. I'll see if I can dig in and reconnect it somehow, but we'll see.

Who knows that other into they're snitching back to GM, or what they could do in the future, so I recommend disconnecting it. Good luck!

 

Folds down to fit inside a 1kg filament box. Upsidedown let's the complicated moving bits be in the base where there's less vibration. Krylan3D originally designed this to easily take in a backpack back and forth from college, but is now hired and working on designing other 3d printers. So the community has made improvements and made it easier to make yourself. Parts cost about $550.

 

As you reduce the amount of carbon emissions (the y axis) the methods to keep reducing carbon cost more (the x axis.)

This great graph came to my attention from this video from vlogbrothers. It also has some good explanations of what it means.

Note that carbon capture doesn't really make sense till you've exhausted all the other emission minimizing methods.

Source: https://www.edf.org/revamped-cost-curve-reaching-net-zero-emissions

 

It can't be that hard, it's only two questions!

Credit to the original video (as far as I know) https://www.youtube.com/watch?v=OgGAmZ1r7Yg

 

Hopefully this will help lower objections to getting devices repaired

 

These mini castles were built all over the city.

The reasons for the construction of so many towers are not clear. One hypothesis is that the richest families used them for offensive/defensive purposes during the period of the Investiture Controversy.

Only a few survive to the current day.

current day pic

https://en.m.wikipedia.org/wiki/Towers_of_Bologna https://www.sciencedirect.com/science/article/pii/S1296207418306952

 

Sticks come in many shapes and sizes, but this is guide to a good vanilla one.

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