Physics & Space

What was Project Ozma?

What was Project Ozma?

Toto, I've a feeling we're not in Kansas any more. Perhaps Tau Ceti or Epsilon Eridani?

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Who is the world’s largest exporter of electricity?

Who is the world’s largest exporter of electricity?

Paraguay. Since, the Itaipu dam, the largest hydroelectric power complex in the world lies between Paraguay and Brazil on the Paraná River.

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How wide is Mercury's largest crater?

How wide is Mercury's largest crater?

Caloris Planitia is 1,400 kilometers across.   A better name for it might have been Deep Impact.

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Who invented the first solar cell?

Who invented the first solar cell?

Charles Fritts' invention was used initially to “sense” light instead of making power from it. Mr. Fritts actually had help from a 19 year old Frenchman.

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How fast is the speed of light?

How fast is the speed of light?

It’s 299,792,458 meters/second (or 186,000 miles/second). It’s sometimes called the "universal speed limit".

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Who made the first magnet?

Who made the first magnet?

No one actually, but the Greeks get the credit for naming magnets.

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