I figure since most people on here understand the physics involved in ports and such, maybe sombody can answer this for me: You know that loud hum/whistle when you run your finger around a wine glass.. What causes that? I know this is a stupid qiestion, but it's one of those things I just need to figure out, lol.
You are close but they do not use water. There is a little trick, you must clean the oils off of you finger tips with vinegar in order for it to work. The acid in the vinegar removed the oil from your skin allowing your finger to lightly squeek along the rim. This squeeking at a certain level will resonate the glass which is filled partially to give a note. Polo..
It's just weird how you can move your finger so slow and it still gets really loud. I've been doing this for hours! Who needs TV and music when you have wine glasses!
