If you have no idea what you are doing find someone else who does.
First, point the gun in a safe direction. Make sure it is not pointed at any body part of yours or anyone else. Ground is best.
If there is enough room between hammer and the frame place a finger of your off hand on the hammer (NOT on the frame, a falling hammer might hurt and an older one with a firing pin on it will draw blood).
Hold the hammer with your thumb and pull the trigger, then let the hammer down slowly.
Be careful, on some older revolvers there is no safety mechanism that prevents a shot when the trigger is not all the way back and a falling hammer will make it fire. Don't decock a revolver when your fingers are wet or greasy.
Release safety, pull trigger. There is no external hammer to uncock.
To safely uncock a crossbow, point the loaded crossbow at the ground (soil is safer that concrete). Remove the bolt. Firing the unloaded crossbow is probably the easiest method to uncock as the pressure could be quite powerful.
No way to do it.
Get an owner's manual. Take it to a qualified gunsmith.
Go to Remington's web site and request an owner's manual.
38 special is only a revolver caliber. that's like saying a 44 magnum revolver or a 500 special revolver. a revolver is a revolver
No its is a revolver.
The action is the heart of the revolver
Depends on the revolver.
revolver
Revolver - comics - ended in 1991.
Ganahl Revolver was created in 1849.