All this geographic mania amuses the de facto father of the mapping field: Jack Dangermond, founder and president of Environmental Systems Research Institute, the 37-year-old firm that is the Microsoft of mapping.

FORBES: Magazine Article

Current estimates put the combined bitumen in these deposits at 1.7 trillion barrels, and some geologists believe more field work will jack that number up a fair bit further.

FORBES: The Promise And Pitfalls Of Canada's Oil Sands

Wigan, unbeaten in five games at the DW Stadium, looked well in control but the catalyst for Arsenal's improvement finally came when Diaby left the field with a calf injury and Jack Wilshere came into the fray, bringing some much needed determination and urgency to lacklustre Arsenal.

BBC: Wigan 2-2 Arsenal

Poor shooting was a problem for the entire Rutgers team in the first half except Kadeem Jack, who was 4 of 5 from the field.

WSJ: No. 24 Notre Dame tops Rutgers at Big East tourney

Before long he was the official mascot of the San Diego Padres, cracking up crowds with on-field antics like hexing opposing players and swiping vendors' Cracker Jack boxes.

FORBES

Harriet Harman is sacked, Jack Cunningham promoted to Cabinet 'enforcer' and Frank Field resigns of his own free will.

BBC: Special Report

Jack Morris lived by the mantra of being on the field at the end of a ball game to shake hands with his teammates after a victory.

FORBES: Third Time's The Charm For Barry Larkin

Even the original flag of the United States, first raised in 1775 was "a jack with the union flag, and striped red and white in the field".

BBC: The union jack: A very complex flag

Blackburn, Carol W. Greider and Jack W. Szostak are credited with discovering how chromosomes are protected against degradation -- a field that could shed light on human aging and diseases, including cancer.

CNN: 3 Americans win medicine Nobel for chromosome research