I like a good joke as much as anyone, but making jokes at the expense of the uneducated is not much fun
So you did a search and couldn't find it
are you sure you're using google correctly?
Here's another clue:
http://books.google.com/books?id=AecOAAAAYAAJ&lpg=PA627&ots=yb3i6_uoRn&dq=molecule%20center%20of%20gravity%20pendulum&pg=PA627#v=onepage&q=molecule%20center%20of%20gravity%20pendulum&f=falsehttp://en.wikipedia.org/wiki/Cubic_centimetre"A cubic centimetre (or cubic centimeter in US English) (SI unit symbol: cm3; non-SI abbreviations: cc and ccm) is a commonly used unit of volume that extends the derived SI-unit cubic metre, and corresponds to the volume of a cube that measures 1 cm × 1 cm × 1 cm. One cubic centimetre corresponds to a volume of 1?1,000,000 of a cubic metre, or 1?1,000 of a litre, or one millilitre; thus, 1 cm3 ? 1 ml. The mass of one cubic centimetre of water at 3.98 °C (the temperature at which it attains its maximum density) is roughly equal to one gram. Note that SI supports only the use of symbols and deprecates the use of any abbreviations for units.[1] Hence cm3 is preferred to cc or ccm."
I would have to say there is a direct connection.
Here it is again:
"The physicists were very quick in getting the highest purity samples of MgB2 with the highest transition temperature — the temperature at which a material becomes superconducting. Their experiments showed that MgB2 sample pellets containing boron isotopes with an atomic mass of 11 became superconducting at 39.2 K (minus 389 F), while pellets containing boron isotopes with an atomic mass of 10 became superconducting at 40.2 K (minus 387 F). By changing the mass of the boron, the physicists saw a 1.0 K upward shift in transition temperature. "We wanted to understand the mechanism of superconductivity in the material," says Canfield. "And we found that the shift in transition temperature caused by the change in boron mass is consistent with standard models of intermetallic superconductivity."
http://www.eurekalert.org/features/doe/2001-12/dl-omm060502.phpAnd again:
http://books.google.com/books?id=MncVAQAAIAAJ&dq=emerald%20maximum%20density&pg=PA215#v=onepage&q=emerald%20maximum%20density&f=false