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quintushoratius commented on My 16-month theanine self-experiment   dynomight.net/theanine/... · Posted by u/dynm
iamflimflam1 · 6 months ago
Coffee and tea are very interesting. I can drink caffeinated tea without any issues. But for some reason caffeinated coffee will trigger an acne break out several days later. It took a long time for me to connect this link.
quintushoratius · 6 months ago
Are you sure it's the caffeine and not another substance in coffee?
quintushoratius commented on Scientists find links between Alzheimer's, herpes, and head trauma   statnews.com/2025/01/07/a... · Posted by u/wglb
idunnoman1222 · 7 months ago
Pregnancy does the opposite of boosting the immune system system
quintushoratius · 7 months ago
It's a mixed bag.

During pregnancy the mothers immune system is muted, which prevents "rejection" of the fetus.

However, in an almost "parting gift" fashion, the departing fetus actually leaves behind immune cells that can provide years of boosted immune activity.

quintushoratius commented on Stay Gold, America   blog.codinghorror.com/... · Posted by u/joanwestenberg
xocnad · 8 months ago
There is a solution to presidential elections for this: https://en.m.wikipedia.org/wiki/National_Popular_Vote_Inters....
quintushoratius · 8 months ago
As if presidential elections are the only elections, or even the only ones that matter.

What the prior commenter meant is that in some jurisdictions it's pointless to vote against one of the parties because they win so overwhelmingly.

For example, I live in Massachusetts. The legislature is 95% one party. There's no point in being in another party, you'll never get elected and your vote won't change the outcome. It sounds like a dream if it's "your" party but without inter-party tension there are a lot of shenanigans that go on.

Your municipal and state elections are, by a wide margin, the most consequential to your daily life. Congressional representatives have a moderate importance.

Who is elected president has the least impact to your daily life, and to the laws and politics of the country, of any person you ever vote for. It's actually tiny, even if some people would like you to think it's everything.

quintushoratius commented on Sol-Ark manufacturer reportedly disables all Deye inverters in the US   solarboi.com/2024/11/17/s... · Posted by u/walterbell
stavros · 9 months ago
What harm was it to Deye that these were being sold elsewhere, that they couldn't fix by saying "sorry, we only support China"?
quintushoratius · 9 months ago
Two possibilities come to mind:

1. They're not properly licensed for other markets. Something equivalent to selling a radio transmitter in the US that's not registered with the FCC.

2. They price units outside of Asian markets much higher and don't want to allow/encourage arbitrage that they don't control.

This is definitely a case of "porqué no los dos" (or more).

quintushoratius commented on The price of shutting down coal power, and what would be gained   economist.com/interactive... · Posted by u/therabbithole
axpvms · 10 months ago
What conditioning? I've always heard it described as the "least bad" form of government. It definitely beats having a communist dictatorship though.
quintushoratius · 10 months ago
The problem with giving people choices is that sometimes they make the wrong choice.
quintushoratius commented on Porsche's idea for a six-stroke internal combustion engine   motor1.com/news/734156/po... · Posted by u/tempestn
hnlmorg · a year ago
You’re drastically overstating the differences between ICE and EV there. But that might be a side effect of American cars vs European cars.
quintushoratius · a year ago
I don't think I'm overstating anything.

My wife and I have owned an EV since 2019. We also still have a couple of ICEs for me and my daughter. I'm not going to throw a car away just because.

I see the cost savings of an EV up close and personal. The only downside has been range for long trips, but 364 days of the year that's not a problem and for the remaining days my ICE does the job. When that car dies, I'll rent one when it's needed.

quintushoratius commented on Porsche's idea for a six-stroke internal combustion engine   motor1.com/news/734156/po... · Posted by u/tempestn
hnlmorg · a year ago
> in my experience in the US, charging away from home is far more expensive

We have lots of free charging points in the UK. Or at least they do around me.

> Your statement about your cost comparison doesn't mention maintenance, which is a significant savings. No oil changes, no rusted exhaust pipes, no spark plugs, etc. Over the life of the car, that's tens of thousands of dollars unspent.

In my experience the maintenance costs is usually more tyres, suspension, breaks, and other similar things that would equally need to be maintained on EVs.

Oil changes and spark plugs are cheap. Never had an issue with my exhaust pipe but I’m sure that’s a thing. Have had clutches burn out but that’s always been more specific to manual shifts rather than ICEs. Cam belts is definitely one big ICE consumable that EVs wouldn’t require though.

I’m sure EVs will have their own specific areas of maintenance as well, but I’ll admit I haven’t done much research in that specific area.

quintushoratius · a year ago
> In my experience the maintenance costs is usually more tyres, suspension, breaks, and other similar things that would equally need to be maintained on EVs.

You'll go through tires _slightly_ faster because the cars are heavier. With the exception of some standouts like Tesla's Cybertruck, which reportedly is only getting 6k miles on a set of tires, the wear rate is slightly higher. Low rolling resistance tires are slightly more expensive. Plan on whatever you're paying now plus 20% to cover the difference.

I've never had to change the suspension on any of my cars. I wouldn't even consider it in a maintenance list unless you live somewhere with truly shit roads, but the mileage and repair cost would be the same in EV or ICE.

Brakes last forever in an EV. 100k miles easily.

Oil changes in the US cost $50+, and are done every 3-4k miles (or $75+, 7-10k miles if you choose synthetic oil).

Spark plugs are cheap, but paying someone to replace them is not.

Some EVs have liquid cooling, but it lasts longer than coolant in an ICE.

I'm so used to people around me driving automatics, I forget to consider a clutch - but I get >100k per clutch so it's not a frequent or predictable cost for me.

Most recent cars, even the small ones, seem to have swung back to using timing chains rather than belts, and don't need regular changes. You can consider it if you like, but you have to take it on a case-by-case basis.

Unless you don't keep your cars long enough to notice, your exhaust system will rust. Water is a byproduct of combustion, after all, and steam corrodes faster than liquid water. It's worse if you make lots of short trips - which is where an EV shines.

Also consider non-regularly-replaced things in your maintenance list: oxygen sensors, water pumps, thermostats, heater cores, etc. You can't predict when these things will fail, but over 10 years you'll almost certainly have to replace some of them.

Consider, also, downtime while your car is in the shop getting the work done.

Contrast to an EV: none of that. A new battery in 150k-200k miles for $5k, unless you're still satisfied with the reduced range.

quintushoratius commented on Porsche's idea for a six-stroke internal combustion engine   motor1.com/news/734156/po... · Posted by u/tempestn
hnlmorg · a year ago
> Electric motors use low amounts of rare earth metals, or in some cases none. Batteries generally don't use them either.

Maybe the term “rare” was poorly chosen. But mining those metals is the damaging part, not the abundance of the metals.

So my point is still correct.

> Automotive batteries have been demonstrated as >90% recyclable, far better than most materials we consider "recyclable" today such as plastic

Citation needed.

EV batteries are reused in some less demanding domains for a couple of years after their life in EVs. but everything that I’ve read thus far has said recycling the batteries themselves, after their life is done, is still very much in its infancy.

> The electric grid has sufficient capacity to onboard millions of electric cars without issue, and will not be impacted by the transition to EVs

Most country’s electric grids do. That’s the bloody point of a grid. It’s the last mile that’s the issue in some counties.

However I will concede that this point is a little unfair because it’s non-specific.

> Cost of ownership of EVs is significantly lower than ICE vehicles in their class, as is the lifetime carbon footprint

That depends. If you’re an occasional driver and charging your car at home, then the cost of electricity in some countries is going to be greater than the cost of petrol.

However if you travel lots and are heavily use charge stations at super markets et al, then EVs will be much cheaper to run than ICE.

It’s definitely not as clear cut as a lot of EV marketing claims.

(I’ve been adding up the costs just this month because was looking at buying an EV and it just wasn’t a cost saving for my particular requirements).

quintushoratius · a year ago
>> Automotive batteries have been demonstrated as >90% recyclable, far better than most materials we consider "recyclable" today such as plastic

> Citation needed

It shouldn't be hard to believe. The components of a battery aren't consumed during operation. An old battery weighs the same as a new battery, and the chemical reactions taking place inside are reversible (because that's how a chemical battery works).

I believe, though, the the previous commenter erred. 90% of _batteries_ are recycled.

According to Wikipedia, lithium battery recycling can see up to 96% recovery rate of material. Lead acid is over 98% of the lead.

https://en.m.wikipedia.org/wiki/Battery_recycling

> However if you travel lots and are heavily use charge stations at super markets et al, then EVs will be much cheaper to run than ICE.

This statement is confusing to me.

In my experience in the US, charging away from home is far more expensive.

Charging at home has added an average of $10/month to our electric bill. Charging at a commercial charger can easily cost $5-$10 _per charge_.

At home I have a 3kw charger, one of the lowest options you can buy. I prefer to take time and keep the battery cool. Heat kills batteries faster.

Your statement about your cost comparison doesn't mention maintenance, which is a significant savings. No oil changes, no rusted exhaust pipes, no spark plugs, etc. Over the life of the car, that's tens of thousands of dollars unspent.

quintushoratius commented on 60 kHz (2022)   ben.page/wwvb... · Posted by u/jer0me
lxgr · a year ago
Oh, is there no “DST in effect” flag in the signal?

As I understand it, the US switches at the same day across the country (for the states that do have it), so that should theoretically be possible.

quintushoratius · a year ago
Not every region of the continental US respects DST.
quintushoratius commented on A skeptic's take on beaming power to Earth from space   spectrum.ieee.org/space-b... · Posted by u/Brajeshwar
LorenPechtel · a year ago
Putting cells over the area: You get intermittent power. Putting antennas over the area: You get continuous power. And that's the achillies heel of solar--you can't have things shutting down every time a cloud comes over.

Furthermore, microwave antennas are mesh, not solid. You won't have full sun under it, but neither will it be dark.

That being said, there's a fundamental issue here that without huge improvements in launch costs it's simply not viable unless made out of lunar materials.

And note that it doesn't have to be in a synchronous orbit so long as you permit some movement of the antennas. Put say 25 stations out there and 24 ground stations--they keep hopping to the next station as the Earth rotates underneath, the 25th station is offline because it's in shadow.

quintushoratius · a year ago
The real magic is not putting all the cells in one place. It's distributing them over the land mass.

A single solar power station can be taken out by a cloudy day.

A million little solar power stations spread across an continent average together into an even power source that provides power for longer than daylight hours.

u/quintushoratius

KarmaCake day170July 27, 2013View Original