I occasionally check in on the world's slowest experiment, the Pitch Drop experiment now called The Ninth Watch at the University of Queensland in Australia.
"Ninth" refers to the ninth drop, which is due. What's interesting is that there is actually visible monthly motion in the drop now.
In a three-month comparison, November 2013 - January 2014, the movement is even more obvious.
My prediction is that the drop will fall by the end of July 2014. The question in my mind is how long it will be obvious that it will only be a matter of days before it actually falls. The "other" pitch drop experiment, at Trinity College in Dublin, finally yielded a pitch drop in July 2013. If you watch the video, it's clear that there was a final several day "stretch" of the upper part of the drop before it fell. That ought to happen with the Queensland experiment's ninth drop, which should get into the news. The thing is, as the pictures show, it is definitely getting heavier and descending. If you watch a slow-motion video of a water drop, you can see that the descent gets much faster just before it drops, and the top of the drop narrowing accelerates pretty drastically.
So if the pitch drop is starting to move faster, it really is due to fall soon.
Keep up the Watch.
Tuesday, April 1, 2014
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