lutorm

34 ms·

301.
by lutorm 6y ago
In a hydro power plant, the water turbine constitutes the "friction" so, if there were no other losses, the half of the energy "lost" from the system is precisely what your generator gave you.
302.
by lutorm 6y ago
Not at all, there's plenty of innovation going on, but it's mostly within the Experimental Amateur-Built category.
303.
by lutorm 6y ago
First-world countries are usually below replacement birth rate. If we disincentivize people from having children, we're going to need a lot more immigration to avoid a population inversion. Is that your preferred alternative to ensure
304.
by lutorm 6y ago
Part of living in a civilized society is that we band together to support activities that we agree are necessary, even if we don't personally benefit from them. My taxes go to pay for many things that I don't benefit from, or even
305.
by lutorm 6y ago
36,000 RPM is 600 RPS, which is still aways off from "tens of thousands".
306.
by lutorm 6y ago
Turbopumps spinning at tens of thousands of revolutions per second. This is actually not true. These turbopumps are quite large and spin fairly slowly. The design RPM on the F-1 turbopump appears to have been 5500 RPM, for example. (That&
307.
by lutorm 6y ago
The animation of the FH appeared to show that the Mvac on the second stage cut out really early. I don't think that's accurate, SECO on the FH demo flight with Starman was at about T+9 minutes.
308.
by lutorm 6y ago
This has echoes of Stoicism, as well, which teaches that emotions and feelings, to a large extent, are not under your control, but are fleeting impressions created by your mind. How you think about and act upon those impressions, though, is
309.
by lutorm 6y ago
But the only thing under your control is how hard you work. Do other people that are more capable than you exist in the world? Maybe. But how does that fact influence your actions?
310.
by lutorm 6y ago
That every dollar you spend directly translates into pushing your financial independence further into the future. I hadn't really reflected on becoming financially independent as a real possibility, but now I'm mentally bookkeepin
311.
by lutorm 6y ago
Stoicism.
312.
by lutorm 6y ago
Or maybe the world is an ambiguous place?
313.
by lutorm 6y ago
I think they're "massive" in relation to the weakly-interacting-and-very-much-not-massive neutrinos, which were another dark matter candidate.
314.
by lutorm 6y ago
Before we a) put in PV and b) got that heat pump water heater, we paid about $50 for our hot water heater electricity use (~160kWh/month) here in HI.
315.
by lutorm 6y ago
What do you mean? That statement is manifestly true. IF any single case leads to <1 additional case, then the numbers will decline. That's math. One person being able to infect an entire office just means it will be harder to get
316.
by lutorm 7y ago
Are you sure this isn't "self sabotaging", ie not trying hard so that you can tell yourself that failure isn't because you're not smart enough but because you didn't actually try? This can be a common coping me
317.
by lutorm 7y ago
This is a total tangent but I can't resist: "it's like blowing up a balloon -- as it gets bigger, there's more back-pressure so it gets harder to fill up the last bit." That's not actually the case with a bal
318.
by lutorm 7y ago
Maybe take a look at https://www.spacex.com/careers/list?field_job_category_tid%5... . (We don't screw our users, because the users are us. And all that counts is solving real problems.) But if your criterion is ze
319.
by lutorm 7y ago
"Those who are already sick will be treated according to their symptoms, a diagnosis has little bearing on the treatment they will receive and therefore low value." It is not low value for the healthcare providers, though, who can
320.
by lutorm 7y ago
It's entirely not obvious how to best solve the coronavirus situation either, though.
321.
by lutorm 7y ago
All rockets are thin metal cylinders. How do you mean this is faulty by design when it's fundamentally like any other rocket?
322.
by lutorm 7y ago
They can fix the code, but would people trust them when they say that the code is fixed? Trust needs to be earned.
323.
by lutorm 7y ago
Not just about ethics though, also about making sure a commercial provider doesn't sell you out.
324.
by lutorm 7y ago
Google Fi can do most of the things Voice could, certainly I can call or send SMS from any device.
325.
by lutorm 7y ago
Except the people who worked in the office also volunteered to stay, so why wouldn't they work harder too so they don't have to start working at home when they don't want to?
326.
by lutorm 7y ago
New York is close to getting there, too.
327.
by lutorm 7y ago
If cloth diapers work, I don't see why cloth toilet paper wouldn't work.
328.
by lutorm 7y ago
Yeah I've seen what people have made but they mostly appear to be modestly heated enclosures with desiccants. Desiccants get saturated very quickly here unless the box is super sealed (that's what I've been using for storage
329.
by lutorm 7y ago
Building a 3d-printer filament dryer and storage box. I mostly print nylons and PC and with the humidity here in HI it's a big pain to keep it dry enough. Even drying the spools in the oven doesn't really work because it takes day
330.
by lutorm 7y ago
That's a great article, thanks for posting that.

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