The chord in any circle being less than the arc which it subtends
{ Why is the polyp Hydra immortal? Researchers from Kiel University decided to study it — and unexpectedly discovered a link to aging in humans. | Kurzweil | full story }
{ Why is the polyp Hydra immortal? Researchers from Kiel University decided to study it — and unexpectedly discovered a link to aging in humans. | Kurzweil | full story }