[url=http://www.iol.co.za/index.php?set_id=1&click_id=31&art_id=qw111596760144B215]New Fuel cell![/url]. This is an awesome invention because it finally allows for truly inclosed artificial hearts (although it will be necessary to have one that runs from a backup power source as well). There are many aspects to artificial limbs that the layperson fails to recognize. A major one is durability. We use our cars a few times a day and need to service them every few months. An artificial heart on the other hand has to go without servicing for decades; it must be flawless. Machines must be treated with care simply because they can't heal themselves. You can't drive a car roughly and then expect it to heal itself. The same line of thinking goes for artificial hearts.