My friend Bryan Norcross knows just about
everything. He’s been doing a 20-part
series for CBS in Miami called “Ask Bryan” and today wrapped his last one. It hasn’t aired yet, but it’s “Why Are There
24 Hours In a Day?’
Think about it.
The “day” itself is a fairly natural notion – it’s the period of time
from one sunrise to another – the time it takes the sun to circle the
Earth. What ancient couldn’t figure
that out? And a “month” is the time
from full moon to full again. Well,
something like that. And a year? That’s the time it takes for the longest day
of the year to get real short and then reach its longest again.
Fine. I may
not have described this with atomic clock accuracy, but the point is that
there’s a sort of observable celestial phenomenon at work here. A caveman or a Hobbit, given enough time –
and they had millennia – could have figured it out.
But is there some little asteroid that circles some
other little asteroid 24 times a day?
Why 24 hours in a day and not 14?
Or 38? And why 60 minutes in an
hour and 60 seconds in a minute?
The answer, as best we can guess, Bryan says, is
that the Sumerians (or did he say Babylonians?
Azerbaijanis? I think he said
Sumerians) used their fingers.
Fingers, after all, are digits and underlie
the digital economy. Our having ten of
them, most of us, underlies the decimal system.
(Do you seriously think that if humans had 8 fingers
instead of 10 a “dime” would have 10 pennies?
No, it would have 8, and there’d be 8 dimes to the dollar. That this is approximately the value of the
Canadian dollar – 64 cents – misses the point entirely. Canadians have just as many fingers as we do
– and there are indeed 100 cents to the Canadian dollar. Coincidence? I think not.)
But why 24 hours in the day? Why not, say, 20?
At which point Bryan crooked his right thumb to
touch the base of his right index finger (please follow along and do it, too),
and said, in much the same way as a Sumerian might have, 4,000 years ago . . .
“One.”
He then moved up a notch – see that? Each of your fingers has three distinct
segments. I never really noticed that!
– and, touching now the middle segment of his right index finger with his right
thumb, he said . . . “Two.”
I think you may sense where this is leading. By the time your right thumb has counted
each of the three segments of his neighboring four fingers, you’re up to
12.
Long before people were reading with their lips, one
imagines, they were counting with their fingers.
So a day was divided into 12 segments, called hours;
and, too, the night.
The foot, meanwhile, was the length of a human foot
but an inch wasn’t the length of a toe – the foot (I’m guessing) was divided
into 12 inches. At least in some
cultures. Others, I guess, used the
“unfolding fingers” method of counting (beginning with two closed fists) and so
decided to break stuff into tenths instead of twelfths.
(I know some of you wrote PhD theses in this subject,
and actually speak Sumerian – probably one of you from Azerbaijan – so I
am fully prepared to print errata and oblongata as necessary.)
Now, still looking at your right palm, having
successfully counted to 12, make a thumbs-up sign with your left hand. As in . . . “that’s one set of
12.” Count another set of twelve with
your right hand and you earn an unfolded left index finger (never mind that now
your left hand is prepared to say, “bang-bang” – the Sumerians, gentle souls,
had no guns). “That’s two sets
of 12.”
Keep doing this until you have unfolded all five
fingers of your left hand, and you’ve got 60.
My feeling is that if Sumerians had had six fingers
on their left hands, there would be 72 seconds in a minute and 72 minutes in an
hour. Had they had six fingers on both
hands – though no one believes that they did – days and nights would have had
15 hours each (full days, 30), and each hour would have been divided into 90
minutes.
If I’m confusing you, imagine what a centipede must
feel. They move so slowly because
they’re trying to do the math.
Bryan goes on to explain that the days of the week
were named after the seven known celestial bodies – SATURN day, SUN day, MOON
day, MARS day (the Teutons called it Tuesday, but the French called it Mardi),
MERCURY day (Mercredi), JUPITER (Jeudi) and VENUS day (Vendredi) . . . again, I
am certain I’m misspelling some of this or torturing it in some other way, so
click here if you want the
original Sumerian.
So what I’m telling you here is that a few dozen
long lifetimes ago – but still nothing in the context of the thousands
of millions of years of evolution that underlay it all – people were looking at
their hands and fingers and the moon and the sun, trying to make sense of the
world.
And that very slowly the pieces of the puzzle began
to come together. (But very
slowly.) And then they began coming
together a bit faster – the printing press just six long lifetimes ago being an
important aid – and then faster still – and faster. And now they are falling together at an incredible
rate, which one guesses will only accelerate further, until . . . BLAST OFF!
Just how you define “blast off” will depend on the
particular philosophical and religious perspective you have formed, as well as
your general level of cheeriness. (Being
an optimist, I see great things. But
one needn’t be Ted Kaczynski to harbor qualms.)
But there they were, counting with their right
thumbs touching the first segment of their index fingers – one. And now I have a laptop computer with all
but instant access to almost all the information on the planet. I have a cell phone the size of a small
stone I can put to my ear and reach Charles, 4,000 miles away buying
fabric (and just tapped to design the Anne Klein line!). And I have TiVo.
(Full disclosure:
After touting TiVo and audible.com in this space, I became so
enthusiastic – how did I live before TiVo? – that I bought a little of
each stock. I did no research, have no
expectation that either can make any money, understand that Microsoft is about
to enter the TiVo market with a terrific competitive device of its own, and do
not recommend that you buy the shares.
But having bought them myself, I must warn you to take this and any
further recommendation of the products – which I love – with appropriate
skepticism. I am no longer unbiased.)
And that, my friends, is why there are 24 hours in a
day.
If only
there were more.