When there is an archaeological find, earth has to be carefully removed to expose buried artefacts or building structures. Excluding nearby volcanic disasters, what. Archives and past articles from the Philadelphia Inquirer, Philadelphia Daily News, and Philly.com.Last Word Archive | New Scientist. September 2. 01. 7. When the wind howls, what exactly is making the noise? Negotiations over the wording of the final communiqué from the G20 meeting of the world’s wealthiest nations carried on late into Saturday morning. Can I Lose 30 Pounds In One Month - Weight Loss Surgical Center In Leawood Can I Lose 30 Pounds In One Month Diet For Cholesterol Reduction Step 1 Low Cholesterol Diet. ![]() September 2. 01. 7. The sky is blue because the atmosphere scatters the shorter wavelength (blue) end of the visible light spectrum more than the red end. As a result, more of this reaches the ground when the sun is high in the sky. Why then aren't we aware of being bathed in a bluish light? Or do we in fact see a bluer world, but, because we always see it this way, our senses accept it as neutral? And is that why a tinge of blue is often added, for instance to washing detergent, to make things look whiter? September 2. 01. 7. How close would one have to be to the coalescing black holes recently detected by LIGO to actually feel the gravitational waves without the aid of instruments? September 2. 01. 7. When there is an archaeological find, earth has to be carefully removed to expose buried artefacts or building structures. Excluding nearby volcanic disasters, what causes a site to fill up with rubble and debris over time? Where does it come from? September 2. 01. 7. Certain animal carcasses can become so quickly infected with dangerous bacteria that they pose a significant threat to human health – for example, pork and chicken. Yet soon they will become alive with fly maggots competing for protein. Why are the maggots immune to the bacteria and their toxins, and why can't this be harnessed for human protection? September 2. 01. 7. Both Friesian cows and zebras are black and white. Does that mean both animals have identical code in their DNA that specifies "black and white"? September 2. 01. 7. How do metal blades in wet shavers lose their sharpness so easily on human hair and how can I avoid this? September 2. 01. 7. I live in a hard- water area and find that vinegar is a cheap and effective way to descale my kettle. But no matter how much I rinse afterwards, I won't get a decent cuppa for a week. Given that the kettle is stainless steel and plastic, why does the taint stay so long? A proprietary citric acid descaler presents no such problem, but is less effective and more expensive. September 2. 01. 7. Why can I only see round craters on the moon and on other bodies in the solar system? Surely, not all the impacts can be at right angles to the surface. What am I missing? September 2. 01. 7. I do cryptic crosswords. On my first attempt, I usually finish about half the clues and get stuck. When I return to the crossword the following day, even if I haven't been consciously thinking about it, I usually get a few more clues very quickly. But after half an hour at most, I become stuck again. Archives - Philly.
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