asdfadsfgfdda

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61.
by asdfadsfgfdda 6y ago
Imagine two different companies, both make the same gross profit. Company A returns profit to shareholders by issuing a dividend and buying back shares. Company B doesn't have many shareholders, so instead of using raised capital, they
62.
by asdfadsfgfdda 6y ago
By that logic, car dealerships in America are a positive because they keep profits locally. In reality, they just increase prices to consumers and limit competition through lobbying. The cost advantage from Walmart is not just in logistics,
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by asdfadsfgfdda 7y ago
There's just no comparing 3d printing with the correct manufacturing equipment. This machine can probably produce hundreds of face shields per minute (wait until the end of the video for full speed): https://www.youtube.com&
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by asdfadsfgfdda 7y ago
It doesn't seem significantly different from issuing a dividend, both return money to investors. But a buyback allows investors to defer taxes.
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by asdfadsfgfdda 7y ago
Considering how much influence their government has on businesses, it should be even easier. I wouldn't be surprised if most wet markets were actually owned by state-owned enterprises.
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by asdfadsfgfdda 7y ago
https://www.cnn.com/2020/03/13/asia/china-coronavirus-us-lij...
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by asdfadsfgfdda 7y ago
In America, wind power is given a subsidy of up to 1.9 cents per kWh generated. Because wind has almost zero variable costs, negative electricity prices can still make money for wind producers. Even though wind energy is fast to turn off.
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by asdfadsfgfdda 7y ago
I seriously doubt any critical medical part can be made for $1. If that part fails, there are likely serious consequences for the patient. Sure the plastic is cheap, but the manufacturer will likely do several expensive steps to reduce the
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by asdfadsfgfdda 7y ago
Measuring inflation is not straight forward. How do you calculate inflation of completely new products, like smartphones? How do you measure inflation on a car that is superior in every attribute (fuel economy, safety, reliability) to a car
70.
by asdfadsfgfdda 7y ago
Just some rough estimates here, a Jetranger helicopter costs ~$1000/hr to charter. Assuming the helicopter's 300 kW engine was magically replaced with electric batteries, that's only ~$30/hr for energy. And an eVTOL will
71.
by asdfadsfgfdda 7y ago
On #4, the FAA actually has multiple levels of safety. Small airplanes, including even some small jets, are certified to part 23 standards. Airliners are certified to part 25 standards, which are more stringent. Even operationally, a part 1
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by asdfadsfgfdda 7y ago
I think it's better explained by interest rates dropping over 2019. There are now more savers with fewer opportunities to make a return on their capital. So even with constant corporate earnings, there are more savers trying to buy a s
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by asdfadsfgfdda 7y ago
There are several things businesses can do: 1. Automate, invest in capital equipment to reduce labor. Instead of manually boxing a product, they can buy an automated packing machine. Or a restaurant can buy tablets to automate ordering. 2.
74.
by asdfadsfgfdda 7y ago
It's not just a structural limitation, there's also a limitation to how much energy the brakes and tires can absorb. Landing at a higher weight requires a higher landing speed, so more energy to dissipate. At very high weights, th
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by asdfadsfgfdda 7y ago
They are still paying plenty in property tax. From the city's perspective, you couldn't ask for a better resident. Somebody who pays full property tax and consumes almost no services (schools, police, etc).
76.
by asdfadsfgfdda 7y ago
The carbon calculations seems questionable. The author should include all energy used on board the ship, which is entirely from fossil fuels. The energy required to desalinate seawater for drinking/washing was probably greater than a f
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by asdfadsfgfdda 7y ago
The energy content of corn is about ~100 kWh per bushel. If you can magically convert all of the sun's solar radiation into corn with perfect efficiency (~2,500 kWh/m2 per year), you get 100,000 bushels of corn per acre. Compared
78.
by asdfadsfgfdda 7y ago
In most of America, the minimum liability insurance is far too low. For example, California only requires $15k per person in liability insurance. If someone is killed or seriously injured, there's easily millions in damages. This effec
79.
by asdfadsfgfdda 7y ago
The economics are bad. Imagine the unit cost is $10 million. This seems realistic, the prototype cost ~$30 million and this airship is made of 40,000 pounds of light weight materials with very manual assembly processes. The cost of capital
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by asdfadsfgfdda 7y ago
The key limitation is weather. Airships are definitely not "all weather" capable, they must avoid wind shear. So reliability will be lower than ships or trucks.
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by asdfadsfgfdda 7y ago
It's possible, but even liquid hydrogen is not very dense and requires a lot of insulation. https://en.wikipedia.org/wiki/Tupolev_Tu-155
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by asdfadsfgfdda 7y ago
There's actually a huge range in private planes. This M600 plane does about 7 mpg, 250 knots at 45 gph. A typical light jet might do 400 knots at 125 gph (3 mpg). But a light jet cannot not fly nonstop to a different continent. For the
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by asdfadsfgfdda 7y ago
I suspect they are marketing this for incapacitated pilots (an extremely rare situation), but it also seems like an alternative for overwhelmed pilots. They don't want to call their potential customers idiots, but this is another featu
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by asdfadsfgfdda 7y ago
80% is propulsive efficiency from the shaft to useful thrust, there's a lot more energy lost between the fuel input and shaft output (thermodynamic efficiency). The thermodynamic efficiency is where most energy is wasted. For small tu
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by asdfadsfgfdda 7y ago
And imagine all of the benefits we get from only 2.5%. More migration - the smartest researchers in photovoltaics can move to a city where they can make a bigger impact, and still visit their families. Even without migrating, researchers ca
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by asdfadsfgfdda 7y ago
The value of an asset is determined by the expected return to investors (i.e. rent). If you reduce expected returns by limiting rent, your asset (the apartment building) is suddenly worth less. But the typical rent control regulation only c
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by asdfadsfgfdda 7y ago
Google is an investor in the Ivanpah project
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by asdfadsfgfdda 7y ago
I wouldn't consider Apple, Facebook, or Google to have a "consolidated work campus". All three are spread across many suburban office buildings, even spread across multiple cities. Maybe some financial firms in New York are c
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by asdfadsfgfdda 7y ago
At that altitude, the turbocharger is doing most of the work.
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by asdfadsfgfdda 7y ago
A CitationJet can reach ~420 knots cruise with straight wings. For propulsion, seems that they become a "hybrid" with propeller thrust and some jet thrust from their exhaust nozzle. This is similar to a P51, which generated some t

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