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Reddit's Ask Science Forum

Al Dente

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38 minutes ago, Al Dente said:

I can spend hours reading this stuff: https://www.reddit.com/r/askscience/

I look forward to reading it later, but these three questions are pretty easy.

PS - you could shine a flashlight at *Earth* and a small amount of light would reach Mars, unless something, e.g., a satellite in synchronous orbit, or even the Moon (see Syzygy), gets in the way of the two. Yes, there are things, such as refraction, that could possibly curve the light away. Also, you might be interested in reading about wave-particle duality.

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8 hours ago, Al Dente said:

Are these harder questions? :rolleyes:

I wish I could say yes with a clear conscience.

There's a reason that, in Europe, once you walk into a restroom, the toilet is often in a separate room from the sink, with its own door - why does it even matter if the water about to fill the toilet picks up some bacteria? (Refer to "Zach and Miri Make a Porno.") The sink? That's an entirely different story.

And as a side issue, God only knows where that sink water has traveled from its source to the faucet, and what it has encountered along the way.

I honestly didn't (and still don't) understand the answer (or even the question) about bovine flatulence, but I suspect solar energy, wind, and water (via gravity) is a better way to go. :)

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