chemistry

De Volkskrant: Pis, beproefd lotion in de 18de eeuw

Pis, beproefd lotion in de 18e eeuw

Urine was in de 18de eeuw goed voor vele toepassingen, ontdekte Verwaal. Bijvoorbeeld om te ontvetten en te reinigen, wisten leerlooiers, de lakennijverheid en de textielindustrie. 

Van onze verslaggever Cor Speksnijder 

Schoonmaakmiddel, bodylotion of oogwater. Tegenwoordig trekken we snel de wc door, vroeger kende urine tal van toepassingen. Ruben Verwaal, medisch historicus en promovendus aan de Rijksuniversiteit Groningen, doet onderzoek naar het gebruik van urine en andere lichaamsvloeistoffen in het dagelijks leven en in de wetenschap van de 18de eeuw. 

Urine as Ultimate Moisteriser: Obsessed with Bodily Fluids

UKrant 2016

How much does sweat weigh? And why is urine such a good moisturiser? Ruben Verwaal discovered that 18th century scientists used primitive chemistry to study bodily fluids.

By Christien Boomsma

So there he was: Santorio Santorio. The early 17th century Italian doctor had constructed a giant ‘weighing chair’, in which he spent most of his day. The construction was intended to help him study his own metabolism. How much did he weigh at the beginning of the day? How much did his food weigh? How much did he poop or pee? And most importantly: was there a difference?