1 The Otologic EvaluationThe otologic evaluation should alwaysinclude a complete otologic as well asrelated medical history.Throughout the evaluation, the clinicianshould keep the patientâs chief complaint inmind. 2  3.
The History of Pretzels. Today I found out the origin of pretzels. A common origin story of pretzels is that they were created by a monk around 610 in Italy. According to The History of Science and Technology, the monk baked strips of dough that he folded into a shape resembling a child crossing its arms in prayer.
German pretzels are made with food-grade NaOH, sodium hydroxide, a very strong and dangerous alkali (caustic soda). A strong solution goes up around pH14 (the MAX!) Soap-makers use it, as well as KOH (which is potassium hydroxide) and the latter seems to be the more common for soap-makers, these days.aking soda is an 8 on the pH scale, which is only slightly alkaline, while Lye is a 13-14 which is about like the strongest alkaline you can find. Iâd hate to spend a month and $50 tracking down some food grade lye, only to find out that it is a huge hassle that produces the same or worse results than baking soda.