Archives for September 7, 2012

There has been concern over the safety of Gardasil (and other?) HPV vaccines. This concern emanates from the usual Anti-Vax sources. The Anti-Vax people are wrong, often to the point where we have to regard them as delusional, about everything they say. If you find yourself leaning towards thinking that they have a point, you…

The object known as the Galileo Thermometer is a vertical glass tube filled with a liquid in which are suspended a number of weighted glass balls. As the temperature of the liquid changes, so does the density. Since each glass ball is set to float at equilibrium in a sightly different density of the liquid,…