Ferdinand Vandeveer Hayden

Une rencontre mathématique By Hayden

Suppose that you are given some number of objects that have a set order but have been randomly shuffled. Without any prior information, you are given the task of putting the objects back into their correct order. How many ways could you arrange the objects? How well do you expect to do? Would this change if there were more objects? Recently I was faced with these very questions and, in the proc...

Ferdinand Sauerbruch: Pioneer Thoracic Surgeon.

Ferdinand Von Hebra--Founder of Classical Dermatology.

T e r e w e r e m a n y i n f l u e n c e s responsible for the glories of NeoViennese medicine . Ferdinand Von Hebra (1816-1880) is considered as the founder of classical dermatology. Hebra was born in Moravia, and received his medical degree from University of Vienna. He was appointed in Josef Skoda’s chest clinic at the Allgemeines Krankenhause. Skoda, seeing his interest in diseases of skin...

Ferdinand Hasbrouck's Nitrous Oxide Caper--Which One?

Hermann Ludwig Ferdinand von Helmholtz (1821-1894)

Driven by both empirical knowledge and mathematical reasoning, Helmholtz made extraordinary contributions to natural philosophy, including both imaging and vision science. Fundamentally important examples include the Helmholtz theorem and the Helmholtz equation, which describe vector and scalar properties of light fields. The first informs us that fields are derived from point and current sourc...