The Science of CleaningCountless cleaning hacks for every kind of household dirt may vie for our attention, but how do we know which ones really work and which ones will only leave you with a sticky mess that doesn't actually do the job? Scientific evidence comes to the rescue, as chemistry professor Dario Bressanini teaches you everything worth knowing about cleaning agents and processes (and dispels plenty of myths, too). He answers all of our most pressing housekeeping