A proponent of the wind turbine shown at left writes:
I commented this 6 year’s ago . It is so simple even if you put in small stream 1 000 000 small turbines like this one, you will have more power. It’s the same for the wind , we don’t need this big huge wind Parks we need small efficient and most important easy for fixing and easy for installation. Not forgetting we can make smaller things with eco friendly materials.
Me:
There are a few reasons that claims like this are bullshit. The main one is that the power extracted from the wind is proportional to the square of the radius of the blades. We recall from our childhoods the formula: Area (of a circle) = pi r-squared. This is why real (not fictional) wind turbines are so large (and getting larger all the time).
Also, as I mention frequently, today’s wind turbines capture about 90% of the theoretically available kinetic energy from moving wind; given the laws of physics, there is no room for any significant increase in efficiency/output.
Even if neither of these were true, which would you rather cover the cost of maintaining: one large turbine or a million little ones?
At left is a good example of what I mean by: “The last 150 years hasn’t been good for philosophers.”
In the late 19th Century, a question like this was the purview of philosophy. Now it’s the domain for neuroscientists.
Similarly, the question: “what are the ultimate building blocks of the universe” was fodder for everyone from the ancient Greek philosophers up to the far more recent metaphysicians. Now we ask particle physicists.
This is funny, but in actuality, sane people don’t physically attack the MAGA crowd; in fact, we don’t even make snide comments.
We keep our thoughts to ourselves. We may feel sorry for these people’s moral depravity and/or stupidity. We may be angry that the country that was once the envy of the world is now viewed with ridicule and disdain in its path to become irrelevant in global affairs.
But messing with hateful morons in red hats isn’t helping anyone.
Here’s the latest on Trump’s efforts to be awarded the Nobel Peace Prize, while waging an aggressive war in Iran, executing people he suspects of carrying drug off the coast of Venezuela, pledging to take over Cuba, and annexing Greenland from a (former) ally.
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