nickjarboe

6 ms·

1.
by nickjarboe 9y ago
Galileo and helicopters? I think you mean Leonardo da Vinci.
2.
by nickjarboe 9y ago
The Earth part was just shorthand for the fact that the atmosphere and gravity of Earth add about 1.3–1.8 km/s of delta v to achieving the pure kinetic delta v of 7.8 km/s needed to achieve LEO [1]. The first stage adds almost all
3.
by nickjarboe 9y ago
Nit: The energy of an object going 2,000 m/s is 1/16th of that going 8,000 m/s, but since this is a rocket launching from Earth the energy for the rocket to get to 2,000 m/s is much greater than the energy to go from 2,0
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by nickjarboe 9y ago
If the world decides to leave fiat currencies and return to gold, the value of gold will be much (10x?, 100x?) higher.
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by nickjarboe 9y ago
I would suggest getting a "Benchmak Maps" atlas of the state you are traveling in. About $25 each. The whole state at 1:300,000 with comprehensive coverage of many features. You will find all the dirt roads and many trails. Good f
6.
by nickjarboe 9y ago
The records before comprehensive satellite measurements are not very useful to determine a baseline.
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by nickjarboe 9y ago
When a city in America is destroyed by a nuclear explosion, Americans will re-learn why suburbia was so popular. Hopefully this won't happen for a long time and we will have a good stretch of city living. I love cities, but having mill
8.
by nickjarboe 9y ago
Google bought WAZE in 2013. I wonder why Google Maps would be so much better than WAZE four years later.
9.
by nickjarboe 9y ago
Not yet.
10.
by nickjarboe 9y ago
The journal article in Nature can be found here[1]. The abstract is publicly accessible with the article behind a paywall. I'm not familiar enough with the dating method to comment on the possible problems of the age determination, but
11.
by nickjarboe 9y ago
Running a rail line point to point is cheap? More like impossible.
12.
by nickjarboe 9y ago
As per the article, Vanguard's biggest fund is the Vanguard Total Stock Market Index which tries to track the CRSP U.S. Total Market Index. That index is "Nearly 4,000 constituents across mega, large, small and micro capitalizatio
13.
by nickjarboe 9y ago
I think the idea behind farm to table is not that the owners of the restaurant supply everything they serve themselves but know their suppliers personally, maybe have been to the suppliers farm, and can answer detailed questions about their
14.
by nickjarboe 9y ago
Individuals buying smaller amounts of stocks may not be exercising their votes or have a board member in their back pocket, but they can in the aggregate greatly influence one thing upper management does care about: the stock's price.
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by nickjarboe 9y ago
Farm to table restaurants are very trendy at the moment.
16.
by nickjarboe 9y ago
It seems to me that if a country has nuclear weapons and they are used in an attack, then one should desire them to be delivered by ICBM. Then there is no doubt where it came from and who attacked who. Living on the US Pacific coast, I sure
17.
by nickjarboe 9y ago
When the Whole Foods opened near me, for the first year, about half the time that I would shop there I had an item where the price they charged at the checkout was higher than the price on the shelf. No "free item if overcharged"
18.
by nickjarboe 9y ago
Still over 10,000 nuclear weapons [1]. Wish it was more like a hundred. [1] https://ourworldindata.org/nuclear-weapons/
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by nickjarboe 9y ago
Nixon created the EPA. I don't think he was generally for hippie bullshit. If one is to believe John Ehrlichman[1], Nixon put marijuana on Schedule I to try and destroy the hippies. [1] http://www.cnn.com/2016/03&#x
20.
by nickjarboe 9y ago
The DOE is the department that designs, builds, and maintains the United States' nuclear weapons. I hope there is some science going on.
21.
by nickjarboe 9y ago
Fuel cells are expensive due mostly to the cost of platinum.
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by nickjarboe 9y ago
Some think that money in the form of shells existed back to at least 75,000 B.P.[1]. Language and controlled fire arose around the same time. Money (easily transferable anonymous debt) may have been used by (proto?)humans before the notion
23.
by nickjarboe 9y ago
Elon Musk believes this as well. In a 2012 interview by Chris Anderson published in Wired[1] on why SpaceX does not patent anything: Anderson: So what have all your creative people come up with, then? What’s different in your basic technolo
24.
by nickjarboe 9y ago
Sort of like how sometimes when government tries to solve a problem with a certain program and, if the problem gets worse, the solution suggested (and often tried) is to give even more resources to the program instead of trying a different
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by nickjarboe 9y ago
I agree independent space stations make more sense than anywhere but maybe Mars. Using small, near-Earth asteroids for bulk resources at first seems likely. But for political autonomy, near Earth is unlikely. Earth's political systems
26.
by nickjarboe 9y ago
World annual traffic deaths in 2010 were estimated by the WHO to be 1.25 million. If Elon Musk has the guts to let people voluntarily test out a system that ends up killing 100 people (and this estimate seems very high. The system could s
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by nickjarboe 9y ago
Political freedom has often been the primary motivation for groups of people to emigrate. Hypothetical sea-steading aside, moving somewhere with no existing political system in place is not possible on Earth. Wealthy patrons might sponsor t
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by nickjarboe 9y ago
Of course people play that way. It's the rules. :)
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by nickjarboe 9y ago
In recent geologic time CO2 levels seem to mostly be influenced by temperature instead of increasing CO2 levels causing temperature rise like today (there does not seem to be animals in past all of a sudden excavating and burning gigatons o
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by nickjarboe 9y ago
Not sure if I'm missing a sarcasm tag in your comment but most places in the US restrict the number of places selling hard alcohol by having a restricted number of liquor licenses that trade on the open market like taxi medallions. In

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