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مشاهدة النسخة كاملة : Rhodri Marsden?s Interesting Objects: The liquid soap dispenser


ahlam1399
08-22-2015, 05:53 PM
Rhodri Marsden?s Interesting Objects: The liquid soap dispenser
http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBlYWne.img?h=100&w=100&m=6&q=60&o=f&l=fIt was 150 years ago today that Mr William Sheppard received the US patent for liquid soap. By mixing one part common soap to 100 parts ammonia, he created a glute**us substance which, he predicted, would be "valuable for...