Recent comments in /f/science

NessyComeHome t1_jbwh7uy wrote

Reply to comment by Various_Oil_5674 in Massive wildfires that raged across southeast Australia in 2019–20 unleashed chemicals that chewed through the ozone layer, expanding and prolonging the ozone hole. A study describes how smoke combined with chlorine-containing molecules in the stratosphere to cause the destruction. by MistWeaver80

I took an EPA test to handle refrigerants.. Cfc's were horrible. 1 molecule of cfc would destroy 100,000 molecules of ozone.

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Reaches_out t1_jbwarav wrote

Reply to comment by snoo135337842 in UC researchers develop innovative breathing aid. The new device not only improves symptoms of breathlessness and quality of life for people with COPD, it also offers benefits for people dealing with stress and anxiety by Wagamaga

I taped the end of a straw almost completely shut, but you can get the same effect from just holding your lips real close as if you're trying to blow out a candle. The tighter the better, as long as air is still getting through, and you're pushing against it with your lungs.

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horseren0ir t1_jbwa06n wrote

Reply to comment by Various_Oil_5674 in Massive wildfires that raged across southeast Australia in 2019–20 unleashed chemicals that chewed through the ozone layer, expanding and prolonging the ozone hole. A study describes how smoke combined with chlorine-containing molecules in the stratosphere to cause the destruction. by MistWeaver80

It started too after we got rid of CFC’s, I think it’s still on track to restoration by 2050, takes a while though

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