41.   His work on such things as the Olympic torch, jet engine parts and even an artificial heart is part of the unsung world of manufacturing.

42.   His goal with the artificial heart?

43.   Humans are already becoming partly inorganic when they receive organ-mimicking machines like the AbioCor artificial heart.

44.   If tissue engineering can eventually supply those scarce organs, it could also reduce the need for devices like dialysis machines or artificial hearts, say advocates.

45.   In one room at Abiomed, researchers set up banks of saltwater tanks holding artificial hearts that beat month after month.

46.   Investors had a bumpy ride even before the trials of the artificial heart began.

47.   It is the first artificial heart to be totally contained within the body, greatly reducing the chance of infection.

48.   It was a synthetic cork made, Mr. Montalieu said, from the same material used in artificial heart valves.

49.   McCarthy is director of the heart transplant and artificial heart pump programs at the renowned heart research center.

50.   Of the five other recipients, one died on the operating table, two died after several months with the artificial heart, and two survive.