- Jun 15, 2010
- Reaction score
Hi,The urine was to fix the dye and also used to wash garments in , Although my memory is be a bit confused.
The Glasgow engine is considered a national treasure although I have had to alter it a wee bit due to the scale Im working at and to make the water jacket was becoming a lifes to short exercise and it may not have had one originally .Lord Kelvin may have had a finger in its addition
Flesh pots in BWH now now lets keep it clean
Urine was used for many things apart from acting as a Mordant to fix and brighten colours, another use was as a source for saltpetre (potassium nitrate) an essential ingredient of gunpowder aka black powder. However niether usine or saltpetre is definitely not explosive by itself it needs the addition of sulphur and powdered charcoal in critical measure to become 'explosive'. Actually gunpowder does not explode it just burns rapidly hence the burning lines of gunpowder seen in many 'Westerns', in order to cause an explosion it needs to be in a strong container. for the latter purpose it was moistly animal urine that was used but bat guano also contains quite a lot as well and this was mined from their caves.
Urine was also used as a cleaning agent as it contains ammonia and this will remove grease and dirt, apparently the ancient Greeks encouraged it's use as a tooth whitener.