May 16, 2011 #1 amorrison Mechanical Dec 21, 2000 605 CA When a narrow beam of sunlight come through the window of a dark room, dust particles can be seen "floating" in the air. Is there any way of doing this artifically?
When a narrow beam of sunlight come through the window of a dark room, dust particles can be seen "floating" in the air. Is there any way of doing this artifically?
May 19, 2011 #2 KiwiMace Mechanical Feb 2, 2006 1,012 What is your goal here? If this is some obscure aesthetic pleasure, put a big light outside and shut all your other curtains. If you want to count or measure particulates, trap and filter a sample. Upvote 0 Downvote
What is your goal here? If this is some obscure aesthetic pleasure, put a big light outside and shut all your other curtains. If you want to count or measure particulates, trap and filter a sample.
May 22, 2011 #3 hacksaw Mechanical Dec 7, 2002 2,558 US optical methods are commonly used for particulates and there is a lot of literature on the internet Upvote 0 Downvote