However, the period of the pendulum was found to be temperature dependent below the transition temperature, tending toward the period " in vacuo " at the lowest temperatures ( those approaching absolute zero ).
22.
This was a restatement of the theory of " horror vacui " ( " nature abhors a vacuum " ), which dates to Aristotle, and which Galileo restated as " resistenza del vacuo ".
23.
With an air dielectric cable, which is approximated to with low-loss cable, the velocity of propagation is very close to " c ", the speed of light " in vacuo ".
24.
Paragraph 13 states that the weight " in vacuo " of this standard shall be called the Imperial Standard Pound, and that all other weights mentioned in the act and permissible for commerce shall be ascertained from it alone.
25.
The " ex-vacuo " cysts arising before birth are known as " porencephalic cysts ", occurring in a condition called porencephaly for which a number of causes are responsible, notably prenatal infarction, hemorrhage or developmental defects.
26.
If it is heated in an atmosphere of inert gas, for example nitrogen or carbon dioxide, it dimerize to give P 4 molecules ( i . e . white phosphorus ) but, in vacuo, they link up again to form the polymeric violet allotrope.
27.
Although the mathematical structure of the Lorentz ether theory, which leaves the speed of light " in vacuo ", " c ", a universal constant, is equivalent to that of Einstein's, there is nevertheless a drastic difference in the way to conceive it.
28.
Further manipulation and finally substitution of SG _ V, the true specific gravity, ( the subscript V is used because this is often referred to as the specific gravity " in vacuo " ) for \ rho _ s \ over \ rho _ w gives the relationship between apparent and true specific gravity.
29.
Of other papers in which he dealt with this and kindred branches of physics may be mentioned " Observations with a Rigid Spectroscope, " " Heating of a Disc by Rapid Motion in Vacuo, " " Thermal Equilibrium in an Enclosure Containing Matter in Visible Motion, " and " Internal Radiation in Uniaxal Crystals ."
30.
Since no such speed difference has ever been observed in vacuo ( or at least I assume I'd have heard about it if it had been observed ), the experimental error of these observations provides one way of putting an upper bound on their rest mass .-- Trovatore 20 : 12, 6 December 2005 ( UTC)
