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termain

207 karma · joined August 27, 2013

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termain··on Na-S Battery: Low-cost with four times the capacity of lithium
That's specific power, not specific energy. Do you mean 1 kW*r/kg?
termain··on ID This SciFi Short Story
I thought the same thing.
termain··on Rocket League now requires an Epic account to play, even through Steam
They broke split screen on the switch.
termain··on Effects of Exercise on Cognitive Performance with ADHD
That's very similar to my experience.
termain··on State projections for Covid-19
That's generally what you should do with a scientific model: state your assumptions and methodology clearly.

And most if not all scientific and engineering models spread properties across a group of objects and use averages. R_0 is an average. And it's the average behavior that matters here

In a well tested population, you might be able to focus interventions on infected people and their contacts. In the US population, the people most likely to spread the disease are those who interact most with other people. That means getting those people to reduce their interaction rate.

It's a semi-empirical model, as are many if not most models used to make decisions.

termain··on 1947 Imperial and Chrysler Service Book – Cam Ground Piston
You're supposed to say "kriging" at least once in this post. :P
termain··on North American F-82 Twin Mustang
I created this entry. It's evolved considerably.

I do still recommend the original source I used: The Concise Guide to American Aircraft of World War II by David Mondey. It's great.

termain··on Earth is a ‘dwarf planet’ because it has not cleared its orbit
The terms are gas giant and terrestrial (or rocky) planet. They're already there.
termain··on Enroute Airbus A380 wake flips Challenger business jet upside down
Yes to pressure part and no to the venturi part. Well, it's not enough. You still have to generate a downdraft to conserve momentum and the venturi idea doesn't explain that.
termain··on Enroute Airbus A380 wake flips Challenger business jet upside down
Seconded. Masters in ASE, written my own vortex lattice code from scratch.

"Wings generate lift by changing the velocity of the flow around them" seems general and correct but the why part is pretty tricky without notions of continuity and conservation laws. And vorticity helps a lot, too.

termain··on Know before you go, with Google
In an absolute sense you're not going to prevent any deaths unless you're preventing lives. Everybody alive is going to die.

One less death relative to what?

termain··on 2017 Chevrolet Bolt EV
It's quadratic. Polynomial would also have been acceptable. But what they meant to say is "superlinear". Like aetherson, this drives me nuts.
termain··on NASA Software Safety Guidebook (2004) [pdf]
Including those at NASA.
termain··on How I designed a practical electric plane for a NASA competition
And as far as I can tell, organizations struggle with doing multilevel and multidisciplinary optimization.
termain··on TTIP Leaks
That seems incompleat. Could you continue?
termain··on Every shot Kobe Bryant ever took
His father Dell is an inch taller with the same listed weight and played from '86 to '02. He's probably a good initial comparison.
termain··on U.S. army developing encrypted radar waveform
"Third, like I said, not modern air force is ignoring IRST."

Right? I mean, just consider the B-2 and F-117 exhausts and the amount of work done to reduce their thermal signatures.

termain··on The result would be a catastrophe (1985)
Yep.

Edit: To be clear, I wasn't saying it was lower.

termain··on The result would be a catastrophe (1985)
Presumably, those estimates are just for the Space Shuttle Main Engines (SSME/RS-25), give that's what Rocketdyne was manufacturing and propulsion is one of Marshall Spaceflight Center's fortes.
termain··on Request For Research: Basic Income
In the context that it's required to get certain jobs? So we -- society -- have screwed up in conflating education and job training?
termain··on Request For Research: Basic Income
"Yes. I'll also add the 4-year education is incredibly inefficient, in terms of skills added over time"

I'm uncomfortable with the idea that a university degree is entirely about workforce skills.

termain··on Chemical clears Alzheimer's protein and restores memory in mice
It was the perfect comment.
termain··on Chemical clears Alzheimer's protein and restores memory in mice
Err.... NASA software, yes. No Mars probes yet.

Yeah, I know, I know.

termain··on Chemical clears Alzheimer's protein and restores memory in mice
Edit: Ok, ok, I totally screwed that up. Damnit. Sorry, everyone. Grams aren't kilograms. The freaking base unit shouldn't have a prefix.

2000mg/kg = 2, right?

Like 2kg of medicine for every one kg of body mass? That seems impossible to consume. Even 0.1 kg/kg seems really, really high.

Or is mg here used for micrograms rather than milligrams? So it's actually 2000 μg/kg.

termain··on Physicists in Europe Find Tantalizing Hints of a New Particle
How is 1+1=1 easy to achieve?
termain··on Emergence in Holographic Scenarios for Gravity
So could the holographic principle be stated as "the number of bits in a volume is bound by the enclosing area and reaching that bound converts the volume into a black hole"?
termain··on Flint, MI: So much lead in children’s blood, state of emergency declared
Well, he did say "Why do we keep them alive as zombies rather than just help the humans and let the municipalities die?"

Is it reasonable to simply pick everyone up and move them? That seems at least plausible, though I'd expect the cost to still fall on the Federal government.

termain··on Dozens of oil tankers cluster off the coast of Texas due to oil price fall
Methane is lighter than air.
termain··on Lecture from the Man Who Dropped Both Atomic Bombs
100,000 per... month I'm guessing?
termain··on 60 years ago: The famous Boeing 707 prototype barrel roll over Lake Washington
It does, it's just kind of wrong. Things are more interesting than that.

Dash 80 was a nickname for that particular plane, it's model number is 367-80. The 707 is a slightly different aircraft that generally isn't referred to as a "Dash 80".

The Dash 80 was the prototype for the 707, but strictly speaking, it's model number isn't 707.

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