Projection Alarm Clocks

The definition of a "second" was set so that there are 86,400 seconds in a day — back around the year 1840! That is the average date for the observations that were used to define the second (i.e., about 1790 to 1880's). Since then, then Earth has slowed down a tiny bit for a while, and sped up for a while. Since 1972, there have been 23 leap seconds, over a period of 13,149 days. That means that ON AVERAGE, over the last 36 years, the days have been longer than 86,400 seconds by 0.00175 seconds. That extra part is called the "excess length of day", and adds up to about 0.6 or 0.7 seconds per year.

Now, we might suppose that the Earth could continue at that rate forever, with each day being 86,400.00175 seconds (average over several decades). The would be zero deceleration. But in fact, the Earth is decelerating. In about 100 years, we can expect that the day will be 86,400.00375 seconds long. Then leap seconds will have to put in about every 267 days (average). And in 1000 years from now, the day will be 86,400.02175 seconds long, and leap seconds will be needed every 46 days (as always, on average). (The detailed situation is a bit more complicated.) Some people are worried about this — see the second link below.

There is a graph of the "excess" length of day at the first link. Look for the graph labeled "BullA LODS".

For a more technical paper, try the third link.

what utter Crap !

so-called atomic clocks actually run from an internal crystal timer. they incorporate a 60 KHz receiver that tunes a radio data signal broadcast from Ft Collins Colorado. The clock uses the data signal to correct its internal time keeping, so that it will stay in step with the reference. Because the data is digital, it can send info on leap seconds, savings time changes, UTC hour, day and year.

the only jamming you might be able to accomplish is to cause enough interference to block reception, but that usually is done only once a day, late at night when school is closed. When the clock misses an automatic update, it displays an error flag.

the old fashioned "IBM" school clocks were made to synchronize to the central controller, usually in the principals office. if you could trick the controller, all the school clocks would change in step.

If you can only find 1200 scientists on this planet to go along with it, then I'm not buying it.

It would be more interesting to post how many of those 1200 and the other believers are personally doing squat about it.

And since when are corporate CEOs authoritative on anything but how to make a buck? Especially when they pass the buck on to The Government to "do something".

Finally, the Doomday Clock? Hahahaha, why don't you see what old episodes of Star Trek say about Global Warming while you're at it.

EDIT: Scot D's response (see below) is actually one of the most insightful comments I've ever seen on the subject. He deserves the 10 points.

cramster has an answer but i don't really understand it…. sign up for free and you can see it since it is an odd problem.
p.s. are you in ph 141 at csu? lol