These days, fans who cannot visit their favorite ball yard need not fret. They can relax at home in a comfortable chair, watching countless games on television with an assortment of snack food at hand. Announcers describe the play-by-play, filling them in on the ins and outs of the contest. A nonstop array of graphics informs them of everything from scores and pitch counts to batting statistics and runners' positions on the bases.Similarly, a visit to a 21st century big-league ballpark is akin to attending a hightech three-ring circus, or setting forth on a family vacation to Disneyworld. Booming heavy metal or salsa cascade through the air as players saunter up to home plate, more music blasts between innings, costumed mascots prance through the stands, and fireworks light up the center-field sky after home runs. Full-color, high-definition scoreboards display oversized player head shots, in-game and season statistics, pitch counts and speeds, and endless streams of factoids of varying relevance (In his last five games at [insert corporation name here] Field, Joe Jones has 11 hits, including eight singles, in 19 at-bats.)This contemporary way of watching baseball is the result of a physical phenomenon that impacts all our lives, but which often is underappreciated: electricity. Starting at the tail end of the 19th century and segueing into the first decade of the 20th, electricity became a major component in how the game was experienced-both in ballparks and outside them.Originally, scoreboards in ballparks were rudimentary, hand-operated contraptions which served a lone purpose: to allow fans attending a game to follow the score inningby- inning. But they were not incorporated into the first ball yards that featured professional games. During the 19th century, fans were encouraged to plunk down a few pennies for scorecards and to record statistics on their own. Back then, club owners were reluctant to offer fans access to game information, preferring that they pay for scorecards. Only in the early 1900's did manual scoreboards become a familiar part of ballpark landscapes.One notable early scoreboard was in Shibe Park, home of the Philadelphia Athletics, which opened in 1909. It first was located down the third-base line, on the left edge of the left-field wall; it only offered data on the game being played, including the names of the players and their positions on the field and in the batting order. In 1913, when bleachers were added to this location, a larger scoreboard was constructed in right-center field. This one offered statistics for both A's and Phillies games. According to Philadelphia Athletics historian Bob Warrington, the scorekeeperstood at the base of the scoreboard during the game and used a ladder and poles to update developments. [A] photo, taken during a game in progress between the A's and White Sox, clearly shows a person at the base of the scoreboard with a ladder and poles leaning against a corner of the scoreboard.... Standing on the field of play, the scoreboard operator had to pay particular attention to the game in order to stay clear of any balls hit to deep centerfield and to avoid interfering with the play of outfielders, especially the centerfielder.Other scoreboards were wooden and rectangular in shape, consisting of a series of portholes, with scorekeepers sitting behind the board and updating a game's run, hit, and error totals by placing numbered panels in the appropriate portholes. Depending upon their design, each ballpark required the scorekeeper to perform a different function. For example, in Fenway Park, the scoreboard, located at field level in left field, was set into the wall that is fondly known as the Green Monster. In order to update the game's numbers, the scorekeeper had to climb up a wooden stepladder. This scoreboard is arguably the most celebrated of its type. It stayed in operation even after the team added its first electric scoreboard in 1975, and remains a cherished throwback to an earlier era. …