My doctor, who knows that I understand physics and renewable energy in particular, asked me today what I thought about wind turbines on boats.
I explained that, since boats need their own ways to generate electricity, what is called “small wind” may make sense. Most ships have diesel-powered generators, and that’s an option for smaller craft as well, and solar is not an attractive option because of the small area.
Doctors generally don’t have time to kill, but he asked me further about small wind, to which I explained:
Because the area of a circle is proportional to the square of the radius, big is better. If you can build a turbine with a radius 100 times larger than a small one, you’re going to generate 10,000 time more power.
Because the power generated by a turbine is proportional to the cube of the wind’s velocity, if you can site a turbine in wind conditions that are 10 times those on your rooftop, with trees and other buildings slowing the wind down, you’re going to generate 1000 times more power.
So, as usual, the answer resides in physics and math. 1000 times 10,000 is 10 million, which is why we see huge turbines on structures that lift huge turbines high above the ground, and it’s why the small wind industry has essentially disappeared.
If you don’t understand elementary school math and high school science, and you have money to burn, the investment offered at left may be right for you.
I join those who say that the human race has evolved to be tribal and selfish. We are largely indifferent to the needs of others, and the capitalist society we’ve built has only served to reenforce this.
As Tom Waits observed, “We’re monkeys with money and guns.”
Now, are there some extremely decent and kind people spread around the globe? Of course. But they tend not to be the billionaires who make all the important decisions as to the how our culture will conduct itself.
Well, never is a long time, as they say.
Yet imagine this scenario, which is quite possible:
Trump is impeached and removed. Almost immediately, there is an incredible outpouring of information on an additional set of crimes committed by Trump and his administration. Simultaneously, the U.S. morphs into a social democracy, and its people enjoy quality education, access to healthcare, and prosperity, not unlike those in Northern Europe and elsewhere around the globe.
Yes, there will always be Republicans promising mass deportations and whatever else appeals to a dwindling MAGA base, but I would think they will have one hell of a hard time winning a national election.
The GOP can say the American economy is skyrocketing. But then there’s that nasty little piece of reality that people can’t afford groceries and are suffering financially more generally.
Or they can day that people are suffering financially, but it’s Biden’s fault. Oops. Biden left office 588 days ago.
Or they can say that the war in Iran has driven up gas prices, but that will turn immediately because we’ve won the war. Yikes. What can we say about all these bombs?
Or they can say that all the racial hatred and divisiveness is Obama’s fault. No, that’s problematic, since he’s been gone for almost 10 years.
Trump supporters may not be too sharp, but even they are having trouble accepting all this crap.
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