This technology sounds like a real boon to keeping cities clean: Self-Cleaning Building Materials a Possible Weapon in Fight Against Smog, but I have to take issue with the writer’s exploitation of the term nanotechnology. He claims that “Research in…

Herb Hedgecock posted the latest population figures on the CHEMED-L discussion groups. Apparently, at 21:34 GMT (EST+5) Jul 26, 2005 the US population was 296,722,355 and the world population was 6,456,339,822.

Dr Hedgecock rightly remarks on the amazing degree of precision…

A symbolic stone penis has been unearthed by German researchers according to the SciScoop Science News Forum. The phallus is 28000 years old. But, of more interest to Significant Figures is that it is described as being 19.2 cm long.…

The Sciencebase site got a lot of hits earlier today from someone asking about the benefits of metrification in science. Such an odd question to be asking at this juncture in scientific history…after all science went metric decades ago. The advantages…

This intriguing news item about how we are heading towards the hydrogen economy contains a fascinating claim: “More than 9 percent of a kilogram of the powder gets converted to hydrogen and little energy is lost through heat.”

What they presumably mean…