On this day 155 years ago Georg Simon Ohm, he of the resistance omega, departed this life. Almost every day I walk past the little house in Erlangen in which he and his brother Martin, an algebraic logician, were born. Today its the Café Con Leche, which does a good cup of coffee and a good line in tasty Spanish cuisine and the shop Gummibärchen Land (Little Gum Bear Country!). This shop is exclusively dedicated to the sale of a much loved German childrens sweet the Gummibärchen (little gum bear), which is a fruit or wine gum in the form of a small teddy bear. They even do Gummibächen birthday cakes. With time I shall blog both of the Ohm brothers as Local Heroes.