John harrison horologist biography of barack obama

          Harrison, the son of a carpenter, was born at the estate in and went on to invent the marine chronometer.

        1. Harrison, the son of a carpenter, was born at the estate in and went on to invent the marine chronometer.
        2. John Harrison, considered to be one of the greatest clockmakers from England, was the inventor of the marine chronometer, a device that.
        3. The inventor John Harrison, who built clocks accurate enough to solve the problems of navigation at sea, has been celebrated where he once lived.
        4. The modern-day Martin Burgess Clock B is based on John Harrison's 18th century clock, which he thought up to solve the problem of determining longitude at sea.
        5. Harrison's clocks were machines of great beauty, but mind-bending complexity.

          6. The inventor John Harrison, who built clocks accurate enough to solve the problems of navigation at sea, has been celebrated where he once lived....

          My Journey Through the Best Presidential Biographies

          Barack Obama undoubtedly possesses one of the most complicated – and fascinating – backgrounds of any former president of the United States.

          Born to a father he hardly knew and to a mother he almost never saw, Obama’s path to the White House is one of the most remarkable and unlikely of any I’ve seen.

          And yet, in hindsight, his political ascent makes almost perfect sense.

          Because his presidency ended so recently, and due to his young age, it could be three decades or more before the definitive biography of Obama is written.

          To wrap up this six-year journey through the best biographies of the presidents I read three books on Barack H. Obama:

          * * *

          * “The Bridge: The Life and Rise of Barack Obama” (2010) by David Remnick

          Remnick’s “The Bridge” was the perfect place for me to start: it covers Obama’s life up through his presidential inauguration and although the narrative ca