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Comment Re:How do you measure the entropy of life? (Score 1) 211

"essence of life" is an interesting choice of words. Here, read this.

Here's a few choice quotes:

Although now rejected by mainstream science, vitalism has a long history...

Vitalism is no longer philosophically and scientifically viable...

By 1931, "Biologists have almost unanimously abandoned vitalism as an acknowledged belief."

Comment Re:When can we stop selling party balloons (Score 2) 296

I suppose it's going to be a while before we run out of alpha emitters. So the Wikipedia page is wrong then, when it says Helium is a finite resource. Last time I trust Wikipedia (yeah right:).

You said it slowly dissipates into space. That means the rate it leaves the atmosphere is low, so the rate it is replenished is low, and that's the limiting extraction rate.

According to this (that didn't take long), the rate Helium leaves the atmosphere is 50g/s, or 3e5 cm^3/s. The National Helium Reserve is 1e9 m^3. So, extracting all of the Helium from the atmosphere before it escapes, it would take 1e9 m^3 / (3e5 cm^3/s), or over 100 years to replace the reserves.

But extracting all of it is hopelessly unrealistic. I don't know, but it seems even 1% would be ambitious. So now we're looking at tens of thousands of years.

So either the national reserve is ridiculously large, or removing it from the atmosphere is not going to be a solution to the shortage. Right? Or am I missing something (else)?

Comment Re:autoplay sucks anyway (Score 1) 108

Companies can be and are sued for giving to charity. It's not illegal because it can be in the (financial!) best interest of shareholders in a variety of ways (encouraging further investment, improving the corporation's image to customers, ... many more) Of course shareholders have other interests, but those interests are not why they are investing. They might choose to invest in one company over another for those reasons, but they are investing in the first place to make a profit. Otherwise it's not investment, it's giving to charity.

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