Originally Posted by
AngryMiller
Ron, the only time that you have a 1 to 1 correlation between mass (how heavy an object is) and volume is with the metric system (1cc of water equals 1 gram). MASS does not normally equal VOLUME due to differences in density.
The density of toothpaste is considerably higher than that of water. So it is conceivable that 7oz (remember MASS not VOLUME) might have less VOLUME than 3.4 oz (VOLUME not MASS) of water.
Density is derived from MASS/VOLUME link.
Bad science on the part of TSA is bad science.
TSA does not do science, it does security. We go by what it says on the container, since we don’t have the time to have a full out science class for the employees prior to them being put on the checkpoint.