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Ten interesting facts about solar power — 20 Comments

  1. Green energy has come a long way in the last decade, it will only continue to grow in the future. It’s an exciting time for invention.

  2. This website really helped me on my science project it’s so helpful I hope my group gets an A or A+.

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  4. “9. …at least 200% cheaper than they were 30 years ago.” This a very interesting “fact”. I’m not familiar with all this “new math” I hear people talk about, but if something is reduced by 50%, doesn’t that make it half of what it was? Would’t 100% be all of it? How in the heck is something 200% less than it was?!?

  5. Math isn’t my strong point, either. After some investigation, however, I found this formula: Percent decrease = (Older โ€“ Newer) รท Older. To find “Older %” it is necessary to move the decimal point two places to the right. So let’s see. If something used to cost $10 and now costs $5, it costs 50% of what it did before, but that is not the percentage of the decrease. (10-5)/10 = 5. That’s not a 5% decrease, of course, it is a 500% decrease.

    Thanks for making me look it up. I learned something.

  6. My contact information is at the bottom of the About page. Apparently that’s not good enough. I will add a contact page immediately. Thanks for pointing out how I can improve my page.

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