It was believed that trees had spirits and to invoke those spirits you would tap on the tree, "knock on wood". The practice tended to be a way to ask the spirits to intervene and save you from a bad out come (bad luck). This is why when you say something you do not want to come about you "knock on wood."
Mineral spirits aren't that good a choice for window cleaning. The so-called "dollar stores" have cheap window cleaner, or you can make your own. Mineral spirits are a petroleum distilate. Sure, they're low odor, but they are flammable, volatile and more toxic than any "regular" window cleaner. This industrial solvent will not remove all the stuff on a dirty window. Some of the things on the glass are not going to be solvent in mineral spirits. On the other hand, window cleaner will remove water-soluble gunk (cause it's mostly water) and has a surfactant that will pick up any grease.
Touch or knock on wood is an old superstition based on the belief that spirits resided in trees and plants. You touch wood (some people say knock on wood) to ask for good luck or the spirit's blessings.
underneath the window
No....there are no such things as spirits. More than likely, the picture was unbalanced and fell on it's own.
the tapping is called "MORSE CODE"
Yes. Mine do all the time.
You have to knock out the small round retaining pin and then it comes off.
It's located outside the drivers door. First, you must determine who is knocking on your door. Then after that you can open the door to reveal the knock sensor or if it is a manual knock sensor roll down the window and simply say "Hello" to the knocker. Hope this helps.
knocking on a door means your asking for someone. if you knock on wood, it means your asking the spirits to spare you from bad luck.
Yes- they can also knock over rickety old sheds if they are flying low enough.
Because he likes u but just doesn't want to tell u