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Comment Re:The travel ban is usurpation. (Score 3, Interesting) 41

There is no constitutional authority for the federal government to prohibit us from visiting Cuba and spending money there.

-jcr

Technically there is no travel ban. You are just prohibited from spending money or receiving gifts in Cuba without a government license.

From United States embargo against Cuba

The current regulation does not prohibit travel by U.S. citizens to Cuba per se, but it makes it illegal for U.S. citizens to have transactions (spend money or receive gifts) in Cuba under most circumstances without a US government Office of Foreign Assets Control issued license.[21] Since even paying unavoidable airfare ticket taxes into a Cuban airport would violate this transaction law, it is effectively impossible for ordinary tourists to visit Cuba without breaking the monetary transaction rule.

Comment Re:Some like it, some don't (Score 1) 85

The "OMG Ponies!" day was the best, but I'm liking the posts so far and found this amusing.

Yes they are amusing, but that is not what April fools day is about. It is supposed to be about (in western parlance - I'm not sure about other cultures) things from fooling you into believing something that isn't so all the way to outright pie in the face (ponies)

What we have here is someone not quite getting what the day is meant to about and as a result most of us are cringing rather than laughing.

Comment Re:No they don't (Score 1) 226

This stupid idea gets floated every few years. It doesn't work, even in theory. Do the math yourself.

https://matter2energy.wordpress.com/2012/03/17/the-maury-equation-redux/

I just took a look at that site, and while in general I agree with his conclusions, I am perplexed by some of the math that he uses.

For example I do not see why Tg is different for ground based versus space based systems, and why it so not eliminated as per the E term (and why is Tg higher for a space based system?). And the links he supplied for the lifetime of space based cells are frankly puzzling to me as I cannot see anything in them that backs up his assertions (which is different from saying his assertions are false).

In addition while a space based system has issues with transmission and degradation, he leaves out the fact that a space based PV system operates 24/7 with continuous output compared to an earth based system that has to deal with the vagaries of weather and that pesky thing called "night". Thus an Earth based PV system will always have to have additional non-PV infrastructure in order to deliver comparable energy delivery. So that will also change the overall economics.

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