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We have this going in on the back patio out in the open so we can see the sky. This means when you all visit, please bring you suit. No one gets in the hot tub without a suit... ewwww!
From the article...
Chinese weather specialists used chemicals to engineer Beijing's heaviest rainfall of the year, helping to relieve drought and rinse dust from China's capital, the official Xinhua News Agency reported Friday.
Technicians with the Beijing Weather Modification Office fired seven rocket shells containing 163 cigarette-size sticks of silver iodide over the city's skies on Thursday, Xinhua said.
Not everyone says "um", "er" or "ah" when they hesitate while speaking. It depends upon the language.
For example, speakers of Mandarin Chinese often say"zhege" which roughly translates as “this”. In English we say "um", "er", "ah", or other vocalisations for reasons that linguists are not entirely sure about. "Um", "er", and “ah” contain what linguists call "neutral vowel sounds" making them among the easiest sounds to make.
It may be that they can be said without a great deal of thought too. So that may be part of the answer. "Um", "er", and "ah" are what linguists call "fillers". "Fillers" help conversations continue smoothly.