Benjamin Franklin sold an asbestos purse to a London collector, Hans Sloane, later President of the Royal Society who gave it to the British Museum.
Historical
Todays communiocations tools like Twitter and Google Maps bring an immediacy to world events that tends to keep ahead of most news feeds. The fall of Tripoli is a historic event that has been bought alive with Twitter.
Tripoli
[Translate] By synchronising a real-time record of a toxic exposure with a video of the event, the subtleties of the effects of work practices and effectiveness of controls can be better appreciated. A series of Pimex Videos is availble to viewing/download from NEPSI (a European Network for silica formed by […]
PIMEX Videos
It appears possible to control bedbugs without chemicals using plant leaves that snare the bedbug's legs. Repeated use of the approach may control an infestation.
Bedbug control without chemicals
[Translate] I developed an interest in ultraviolet when I was given the role of University Radiation Officer at the University of Queensland. A previous URO, Dr Don Robertson (1914-2006) was part of the Department of Physics and looked after the (unmarked) sandstone Radon Lab on the Great Court at the university. […]
Robertson Berger Ultraviolet meter
Carbon dioxide concentrations are a good indicator of room ventilation. Measurements and observations done in 1893 tally well with current IAQ recommendations.
CO2 and IAQ – a historical perspective from 1893
[Translate] Stiglers Law states “No scientific discovery is named after its original discoverer“. Naturally, Stigler’s law was discovered by sociologist Robert K. Merton. I have certainly found that when you have a good idea, then someone else has probably thought of it first, but occasionally weeks or months later. That’s […]
Stigler’s law
Safety and Health coerns opften collide. In the end the focus is on safety despite overwhelming evidence that health is a bigger issue.
When Safety is not Health
[Translate] I have been monitoring how reliable my websites are with a free subscription to Pingdom. They send me an email each time the site is not available and another when it is up again. Presently, its averaging a little over 99% – somewhat less than the “official” figure of […]
Website Uptime with Pingdom
[Translate] I was surprised at the extent of the destruction of world chemical weapons stockpiles, though I suspect the auditing processes in some counties would be less than transparent. The National Academies Press (NAP) send me emails on new releases of its publications. One I received today is
English