A centenarian is a person who has attained the age of 100 years or more.
Much rarer, a supercentenarian is a person who has lived to the age of 110 or more.
Many notable and famous individuals have become centenarians. They include the following:
... is surprisingly simple. It can easily be understood with a little knowledge of gyroscopes. Their striking property is that the axis of a spinning gyroscope will resist a ...