Fetal circulation
In string theory, strings that make up the subatomic world are considered to vibrate and how many dimensions?
In 1847, obstetrician James Young Simpson, head of midwifery at Edinburgh Hospital/University, first used what anaesthetic, for general anaesthesia during childbirth?
Which fermented liquid condiment used for flavouring, especially of grilled meats (and also used as an ingredient in cocktails and drinks) was first made by two dispensing chemists, John Wheeley Lea and William Henry Perrins?
