sacred_numbers

13 ms·

61.
by sacred_numbers 5y ago
Something can be remarkably simple and still a breakthrough at the same time. Handwashing, for example, is one of the greatest medical breakthroughs of all time despite its simplicity.
62.
by sacred_numbers 5y ago
The article says that the Edu version has a capacity of 5kg which is an upgrade of 2kg. This would imply a load-carrying capacity of 3kg for the base model. Not a lot, but not totally insignificant.
63.
by sacred_numbers 5y ago
I think that the lack of pollution taxes is the main subsidy, but it should not be brushed aside just because it is not a direct payment. Coal emissions (not just CO2) are really, really bad and kill many thousands of people every year. Ima
64.
by sacred_numbers 5y ago
The link below has more information about this project. Apparently they added a coating to help with water resistance and a stabilizing agent to help with strength. https://www.theplan.it/eng/architecture/tecla
65.
by sacred_numbers 6y ago
The problem is that Wall Street has access to, if not free, practically frictionless trading in comparison to retail investors. If you add more friction to retail investors but not Wall Street it just compounds the problem.
66.
by sacred_numbers 6y ago
The negative effects of climate change are caused by the total level of greenhouse gases in the atmosphere, not the current rate of emissions. The world reduced the rate of emissions by 10% last year. That's better than nothing, but th
67.
by sacred_numbers 6y ago
Do you have any numbers to back that up? A 747 burns 10-11 tons of fuel per hour and carries about 360 passengers. For a 12 hour flight, that is about 350kg of fuel per passenger. Starship's tanks hold approximately 250 tons of fuel a
68.
by sacred_numbers 6y ago
That's actually enough electricity to smelt about 40kg of aluminum.
69.
by sacred_numbers 6y ago
Once we start building things in space (beyond assembling pre-built modules) it might be worthwhile, although even then it might not be worth it, since it would take a lot of fuel to move from orbit to orbit catching dead satellites. In or
70.
by sacred_numbers 6y ago
That's not what would happen, though. The police will use this tech on poor people who can't afford their own attorneys, and public defenders are too overworked, underpaid, and/or cynical to try to push back against the syste
71.
by sacred_numbers 6y ago
That's kind of true, but also not quite true either. If you earn income from capital you are only taxed when you sell that capital. Theoretically this means that if you want to spend money on living expenses or luxuries you have to sel
72.
by sacred_numbers 6y ago
All of recorded human history is evidence that this is false. Consider the Holocaust, the Salem Witch Trials, Lysenkoism, The Great Leap Forward, Aztec human sacrifices, and so many others. Even if you just consider the relatively modern
73.
by sacred_numbers 6y ago
Not while they are exactly three years old. There will be 52 weekends with a one year old, 52 weekends with a two year old, etc.
74.
by sacred_numbers 6y ago
That's highly misleading. Overall cars kill way more people than murderers (at least double) in America. Baltimore just happens to be at the top of the list for murders per capita and apparently slightly below average for auto fataliti
75.
by sacred_numbers 6y ago
Before anyone takes this documentary seriously, please do some research. This[1] Wikipedia article is a good starting point, but there are a lot of sources showing how misleading and inaccurate this documentary is. https://en
76.
by sacred_numbers 6y ago
Mars will certainly be challenging to colonize, but it has some major advantages that I believe outweigh the disadvantages. First, water is pretty abundant almost everywhere on Mars. Second, carbon is abundant and nitrogen is abundant enoug
77.
by sacred_numbers 6y ago
According to this source[1] an endurance horse riding 100 miles per day requires 78,800 KCal of energy, which translates to about 329 MJ or 91 KWh of energy. That's equivalent to 2.55 gallons of gasoline, so about 39 mpg. The world rec
78.
by sacred_numbers 6y ago
Learning from, teaching about, and documenting history is extremely important. The fact that you or I disagree with some historians about the proper balance between accuracy and relatability does not mean we should denigrate the study of h
79.
by sacred_numbers 6y ago
That must be why India, with one of the lowest meat consumption rates in the world, tops the obesity charts.
80.
by sacred_numbers 6y ago
Venus may not have a lot of hydrogen, but it does have some, especially in the form of water vapor. The amount of phosphine is also pretty tiny, about 20 parts per billion, compared to about 20 parts per million for water vapor.
81.
by sacred_numbers 6y ago
I don't think wireless electric spacecraft are really viable for getting into Earth orbit, at least not in the foreseeable future. In order to escape Earth's gravity well, a spacecraft must be accelerating at more than 9.8 m/
82.
by sacred_numbers 6y ago
It's extremely easy to beat the efficiency of photosynthesis since plants are so inefficient. The highest estimate I have seen for carbon sequestration by trees is 7 tons of CO2 per acre, which doesn't include losses from converti
83.
by sacred_numbers 6y ago
According to that link the medical cost of obesity is $147 billion. Healthcare spending in the US is around 3.3 trillion. Obesity is a problem, but it is not the main driver of medical costs. Also, we are already paying for the healthcare
84.
by sacred_numbers 6y ago
This is not artificial food any more than bread or cheese are artificial. Also, the scientists developing this technology are not advocating that people only eat Solein; in fact it seems like they're marketing it more as an extra ingre
85.
by sacred_numbers 6y ago
The electricity in the process is primarily used to generate hydrogen, which is what actually feeds the yeast cells. Even a fairly small buffer tank would allow for continuous production with unreliable power. My guess is that food producti
86.
by sacred_numbers 6y ago
The data here may not be totally accurate, but the sentiment is right. For my local school it's showing the marginal cost of the first credit hour, but the average cost per credit hour is substantially lower once you get to the minimum
87.
by sacred_numbers 6y ago
Not typically in money, but in gifts, lunches, and attention paid by young, attractive pharmaceutical sales people. For opioids, specifically, there is also the factor that doctors prescribing opioids will have higher customer satisfaction
88.
by sacred_numbers 6y ago
This blog post is focused on the Raspberry Pi portion of the build, since it is the Raspberry Pi blog, but it links to the original creator's blog, which is more detailed and has several videos of the robot actually working. Here&#x27
89.
by sacred_numbers 6y ago
The herd immunity threshold depends on behavior. It may be at 30% infected when the population is wearing masks and social distancing, but could be 70% if restrictions are removed. I agree that parts of New York City have probably reached h
90.
by sacred_numbers 6y ago
Transportation costs are really not that high. Let's say that the farm is 2000km away from the city. Average freight cost per ton-km via truck is about 12 cents, so an additional $240/ton. Via rail it's about 3 cents, so an a

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