Two doctors in the US say they have developed an artificial heart that will let people live longer. Instead of pumping blood around the body like a human heart, the device spins the patient's blood around the body, using centrifugal force. It also means a patient using with the new machine will not have a heartbeat or a pulse. The doctors say their continuous-flow pump will last longer because it has fewer moving parts than artificial hearts. Al Jazeera speaks to William Cohn, one of the doctors who developed the device at the Texas Heart Institute. At Al Jazeera English, we focus on people and events that affect people's lives. We bring topics to light that often go under-reported, listening to all sides of the story and giving a 'voice to the voiceless.' Reaching more than 270 million households in over 140 countries across the globe, our viewers trust Al Jazeera English to keep them informed, inspired, and entertained. Our impartial, fact-based reporting wins worldwide praise and respect. It is our unique brand of journalism that the world has come to rely on. We are reshaping global media and constantly working to strengthen our reputation as one of the world's most respected news and current affairs channels. Social Media links: Facebook: https://www.facebook.com/aljazeera Instagram: https://instagram.com/aljazeera/?ref=... Twitter: https://twitter.com/ajenglish Website: http://www.aljazeera.com/ google+: https://plus.google.com/+aljazeera/posts