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User: Bela_Phi

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  1. Re:Curious about timing on The Man Who Knew Too Much · · Score: 1
    According to a June interview with Jennings (sorry, paid subscription required) in the LDS Church News, the episodes he appeared in were taped in February.

    Here's an excerpt from the article:

    "The Jeopardy! contests featuring Jennings were taped (five episodes a day) at [Sony Pictures'] California studio in February, but were not broadcast until June. Jennings [and his wife] were contractually obligated to stay quiet about his Jeopardy! success."
  2. Re:Prevention is better than cure on Dipstick Test For Cancer Under Development · · Score: 3, Informative

    My understanding is that - although smoking is a risk factor for the condition - Barrett's esophagus is most frequently associated with Gastroesophageal Reflux Disease (GERD).

    So really, Barrett's is not among the "effects of being [a] longtime smoker," but rather a condition that many people with GERD develop that is associated with a greatly increased risk of developing throat cancer later. So lowering the number of people who smoke really wouldn't decrease the need for this test.

  3. Re:Ice cream plants are already enviromentally saf on Thermoacoustic Cooler Means Green-Friendly Icecream · · Score: 1
    1. "[Anhydrous ammonia] is lighter than air (unlike HFCs and CFCs) so releases typically float away"
    I'd heard this before about HFC's and CFC's.

    IANAP[hysicist], so can someone help me understand how a subtance that is heavier than air (and therefore can't "float away"), when released at or near ground level, can be responsible for damage to the ozone layer 10 to 50 km above the earth's surface?

    I'm really interested in understanding the science, since we were taught for years that our old aerosol hair spray was damaging the ozone layer. How is it getting up there?

  4. Re:Odd thing about trains... on MagLev Trains Annoyingly Loud · · Score: 2, Informative
    Here's one mad scientist's explanation.

    To summarize, during the day the presence of "masking" sounds makes it more difficult to hear distant sounds. At night, fewer masking sounds are present.