njarboe

64 ms·

691.
by njarboe 6y ago
Rockets might not be cheaper but it could be close and they will beat the airplane by far on speed and views. Elon Musk is thinking/hoping that the cost for SpaceX to launch a 100 passenger Starship will be around $2 million[1] conside
692.
by njarboe 6y ago
What is cool about coastal redwoods is that they can survive all of their branches being burned off (i.e., a tree topping fire). The redwood trees in the Oakland fire were just logs in the sky after the fire and now the ones that were not c
693.
by njarboe 6y ago
Silicon Valley is a start-up culture which can only thrive where non-competes are illegal. 'Main players' rarely pivot and create new business divisions that can compete with all the start-ups. I'm not saying the main players
694.
by njarboe 6y ago
Fukushima was built in the early 1970's from an early 1960's design. Nuclear power had barley started to be developed and then all development stopped. Of course there are many reasons for that, but if we had continued to develop
695.
by njarboe 6y ago
Bill Gates has funded the development of a new nuclear reactor design that is much smaller and safer than current ones and uses the huge current US stockpile of depleted uranium as a fuel source. He was going to build it in China, as the US
696.
by njarboe 6y ago
I wrote this little speculative story about honey bees out competing native ones (with an analogy to goat herding) in a HN comment back in Feb, 2019 [1]. Interesting to see some research supporting it. [1] https://news.ycombinator
697.
by njarboe 6y ago
Two big things that help are don't fertilize it and don't water.
698.
by njarboe 6y ago
Check out https://www.mrmoneymustache.com/ for one possible alternative that is working for a lot of people that live in the US. The FIRE movement is about working for a short amount of time and living frugally but well for
699.
by njarboe 6y ago
Yes it works. If you lose your ID or someone steals your wallet on a trip and you can still take the airplane back home before getting a new one.
700.
by njarboe 6y ago
Very few people invest in the basket of companies that make up the Dow Jones. Its use as an index of how the stock market is behaving is really a historical artifact at this point. One ETF in the top one hundred [1] ETFs is based on the Dow
701.
by njarboe 6y ago
I think the main idea in the prisoner's dilemma is that in the defect/no defect case the defector has great gains and the non-defector has great losses. Who gains and who loses is the key and that is what China has been doing to t
702.
by njarboe 6y ago
Tit-for-tat has been found to be the most effective strategy in prisoner dilemma type situations. If China lets us into their markets then we will let them into ours. This was the whole point of letting China join the WTO, but China has com
703.
by njarboe 6y ago
"American middle-class wealth has moved to upper-class rather than to outsiders." As your quote says, it's not the wealth that has moved per say, but that people have moved upward out of the middle class and brought that weal
704.
by njarboe 6y ago
"There’s no easy fix, either. Excel doesn’t offer the option to turn off this auto-formatting, and the only way to avoid it is to change the data type for individual columns. Even then, a scientist might fix their own data, but as soon
705.
by njarboe 6y ago
People that are just decent programmers can make at least twice (probable 3 or 4 times) as much money working for industry than for science in an academic environment. Most programmers that would work for less money because they are interes
706.
by njarboe 6y ago
SpaceX needs $kg to orbit to be much lower for their Mars plans to be possible. It is planning on their starship and superheavy rocket combo to bring down current launch costs by a factor of around 100 in the long term. A factor of two impr
707.
by njarboe 6y ago
I am not a rocket scientist, but one of the main reasons it is so unique is that it will be the first full-flow staged combustion rocket engines to successfully be used on rockets. Rocket engines have powerful turbo pumps to move large amou
708.
by njarboe 6y ago
Yes, you are right. It's libel. Wow, I did not know that the surveillance bureaus are exempt from libel. What an incredible law against the interests of the people. That explains why I've never heard about class action suites agai
709.
by njarboe 6y ago
Maybe a better way of say this is that the bank is committing libel when they report to a credit bureau that you have defaulted on a loan when you have not. They say you did something that you did not do and the fact of them declaring that
710.
by njarboe 6y ago
Charge people not in your contact list 10 cents to message you. 5 cents goes to you and 5 cents to the carrier. Problem solved. I would love this for messages and phone calls (and emails while we are at it).
711.
by njarboe 6y ago
Credit reporting agencies and financial institutions commit fraud all the time. They call it identity theft so that you think it is your fault instead of their fault. No one would care about a bank giving a loan to a person that was imperso
712.
by njarboe 6y ago
I think the Feb raise by Tesla was probably done because they (Musk) thought that COVID-19 would hit the US and cause a lot problems, unlike most people at the time. Diluting his holdings to put $2 billion in the bank for Tesla to get throu
713.
by njarboe 6y ago
"Only draconian access to personal data, as used in South Korea, seems to have brought any positive results." The article quickly glosses over this fact (and leaves out Taiwan) and labels this successful system for stopping COVID-
714.
by njarboe 6y ago
I agree with your post in general but consider that accuracy and being correct is hard and takes time and consideration. This is something almost no people value when speaking in normal conversations or the equivalent online venues (Twitter
715.
by njarboe 6y ago
As quoted in this previous discussion, I think this is a key point: "particle physicists should focus on developing new technologies that could bring colliders back in a reasonable price range and hold off digging more tunnels." C
716.
by njarboe 6y ago
Maybe this is because most people with cars in America (especially in the 1950's) were not worried much about the price of gas. Europe had much higher gas prices and was much poorer, so how much it would cost (how much gas would be use
717.
by njarboe 6y ago
Over the history of the Earth, most of the CO2 in Earth's original atmosphere and the CO2 released from volcanoes, have been sequestered by rocks, not hydrocarbons and coal. Plate tectonics keeps creating fresh rock that can keep absor
718.
by njarboe 6y ago
Something as complex as colonizing Mars would really need to be tried before anyone should claim to have expertise on if it's possible. It looks like our current technology and knowledge is up to the task, so I'd say it's wor
719.
by njarboe 6y ago
SpaceX is all about getting the cost down. You are going to make a lot more travel and payloads viable by focusing on dropping the price to orbit by 10x or 100x or 1000x (about $20/kg is the goal for the in development superheavy rocke
720.
by njarboe 6y ago
Salty water is more dense.

More ›