3/89Amount of time it takes to ride the entire length of the New York City subway system, in hours: 30

Rich Temple (N.Y.C.)

4/90Estimated amount of time that Michael Jordan has spent aloft while playing in NBA games, in hours: 3

Chicago Bulls/Lt. Col. Douglas Kirkpatrick, U.S. Air Force Academy (Colorado Springs)/Harper’s research

2/89Amount of time it would take for all the Coca-Cola ever sold to flow over Niagara Falls, in hours: 23

Coca-Cola Company (Atlanta)

5/96Change in the annual number of hours worked by Congress since 1994: +1,217

Congressional Record

    Change in the number of measures passed: -198

Congressional Record

7/87Total amount of time Maj. Gen. Richard Secord has spent in Central America (in hours): 6

House Select Committee to Investigate Covert Arms Transactions with Iran