This is Scientific Americans 60 Second Science. I'm Steve Mursky.

Got a minute?

Thanksgiving Day means.

And, and you know what? There might be more total action at the dinner table than in the football game.

Back in 2010 the Wall Street Journal announced that their study of four game broadcasts combined

with analysis by other researchers found that quote the average amount of time

the ball is in play on the field during an NFL game is about 11 minutes."

It turns out the journal's study merely confirmed a scientific American investigation that we did

80 years earlier. While scrounging through our digital archives recently, I happened

on the article from our November 1930 issue titled, How Many Minutes of Play in the Average Football Game?

Author Ugo L Rush was the supervisor of the Technical Data Section of the Johns Manville Corporation.

He studied eight college games between 1927 and 29 that included

teams from a few Ivy League schools as well as Notre Dame Army, Stanford, and Ohio State.

And he found that the time the ball was actually in play during those games

was 12 minutes, 22 seconds. I'd guess that the tendency to use more time-consuming running plays back in the day accounts for the extra minute

or so of college game action back then compared to today's NFL style.

Russia's article pointed out that watching football in person was really expensive if you figured you only paid to watch the actual plays.

Why he wrote you could be paying $24.25 an hour to watch football because that's what your $5 ticket, yes, $5 for a major college

game was really buying you. Rush concluded that the stress of watching a game in person meant that, quote, even though you may be paying

at the rate of $24.25 per hour to see actual football, perhaps it is best for you that

there is only 12 minutes of it.

If you kept this tension steadily for an hour, you might have to be carried out of the stadium.

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