It's just a way for you to mark a specific location.
No, placing a pin on the map will only appear on your screen, not in the actual environment.
The sound that a pin makes when it drops is dependent on the size of the pin, the height from which it is dropped, and the distance that the listener is from the pin. Typically a pin dropped from a height of 1 cm and where the listener is 1 m away equates to a 15 dB sound level.
you can use paper maps or mobile maps, to pin point a location you might need to find.
A push pin is a fastener. As a minimum, it fastens a very visible head to a surface. Even used symbolically on e.g. Google maps. Alternately it may fasten one surface (paper) to another.
Pin dropped from a height of 1 centimetre heard at a distance of 1 meter would be ~15dB
The purpose of Beretta's firing pin catch is to prevent the firing pin from going forward from in the event that the pistol is dropped. It's just simply redundancy, every precaution to not put little holes into your body is taken.
The chance of a pin landing with the sharp point facing up would depend on multiple factors such as how the pin was dropped, the surface it was dropped on, and its shape/weight distribution. It is generally difficult to calculate an exact probability due to these variables.
mobile pin
pin - pinch
because he seen it on google
you can use google translator
When train cars are linked together{coupled} it was much like a trailer hitch, but instead of a ball hitch, there was a pin hitch. The man who aligned the hitch and dropped in the pin was sometimes referred to as the "Pinhead" . I'm not sure if this may be a mechanized operation these days.