Tag Archives: Michael Faraday

Kathleen (Yardley) Lonsdale DSc., FR

JMS Pearce Hull, England   Fig 1. Dame Kathleen Lonsdale (née Yardley) by Elliott & Fry. 1996. National Portrait gallery. CC BY-NC-ND 3.0 Kathleen Lonsdale (1903-1971) (Fig 1) like her contemporary Dorothy Hodgkin was one of the women pioneers in a man’s world of professional scientists.1 She developed original techniques in X-ray diffraction of crystals […]

William Marsden, surgeon and founder of the Royal Free and Royal Marsden Hospitals, London

Arpan K. Banerjee Solihull, United Kingdom   Portrait of William Marsden by Thomas Illidge 1850. Picture in public domain. Source To found one hospital is a fairly unusual achievement; to found two is a rare feat indeed. William Marsden, a nineteenth-century British doctor, founded both the Royal Free Hospital and the Royal Cancer Hospital (now known […]

The Philosophers’ Stone: history and myth

S.E.S. Medina Benbrook, Texas, United States   The ouroboros and the squared circle. The ouroboros is an ancient symbol where the metaphysical property of infinity is represented by a serpent or dragon swallowing its own tail. Its image is often used in alchemical texts from the Middle-Ages. Contained within the ouroboros is the squared circle, an […]