The History of Soapmaking
Nothing comes from nothing
Defined as the 'capacity to do work' and by Einstein's famous equation E=mc², discover energy.
Weblinks
History of Soap
Ivory Soap: A Brand History
Bubble history
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Reading
Book 3 of ST240, Our Chemical Environment, The Open University
Gibbs F.W., ‘The history of the manufacture of soap’, Annals of Science, vol. 4, pp. 169–90, 1939
Lucock Wilson R., Soap through the Ages, a Progress Book published by Unilever Limited