Tools of the Trade: The Pendulum That Detects Extra Dimensions

Huh ? Are we comparing magnetic and gravitaional force here ?

Implausibly feeble ??? That's just tosh, like saying the conductivity of water is implausibly low. If they don't know wtf gravity is how can it be implausibly anything ... they have no plausible explanation of it at all.

Or maybe it's just weak?
Maybe the reason I'm not really really attractive to women is that my charm is all operating in an alternative dimension?
Ah yes that must be it!... I feel much better about myself now... (sheesh)
Del

Guess these guys never been to a neutron star....

You really should look at the buried Scientific American link in the article. _{(Yeah, SA is not what it use to be, but it is still better than Discover magazine.)}

This experiment is a clever test of part of string theory. Unfortunately for string theorists the experiment did not show string theory to be true. For the rest of us it did not show string theory to be completely false either. This experiment did show though that some aspiration (prediction) of string theory to be false. Finding a testable, low cost, prediction of any aspect of string theory in and of itself should certainly be applauded.

The article really says nothing about what Adelberger is trying to prove...

String Theory is one of my favorites- a theory that can not be validated (or invalidated) by any physical experiment! It doesn't fit observations? OK, let's just add another dimension!

"An analysis of results from the Large Hadron Collider in December 2010 severely constrains theories with large extra dimensions" This is from this link. Here "Large" means bigger than the Planck scale!