Factors Affecting the Natural Frequency. The actual frequency at which an object will vibrate at is determined by a variety of factors. Each of these factors will either affect the wavelength or the speed of the object. an alteration in either speed or wavelength will result in an alteration of the natural frequency.
Eight vital organs can be donated: heart, kidneys (2), pancreas, lungs (2), liver, and intestines. Hands and faces have also recently been added to the list. Tissue: cornea, skin, heart valves, bone, blood vessels, and connective tissue.
1 One organ donor can save up to eight lives. The same donor can also save or improve the lives of up to 50 people by donating tissues and eyes.  More than 120,000 people in the United States are waiting for organ transplants. [Solid Organs: Hearts, kidneys, pancreases, lungs, livers and intestines].