Wood engraving of Sir John Herschel from 1971

Plants as Photographic Media

Printing with plants is growing in popularity since it is sustainable and easy to learn. Mike Ware gives us an overview of the difference between anthotypes, photosynthesis and chlorophyll printing. Writer and photography / Dr Mike Ware In January of 1839, the invention of photography was publicly announced, independently by Louis Daguerre using silver-plated metal sheets, and by William Henry Fox Talbot, using writing paper coated with silver salts. Within … Read more

Pipettes and syringes for measuring drop sizes

Is your drop the same size as mine?

Have you ever wondered if the size of a drop is always the same? The short answer to the question of the size of a drop is that the volume of a drop usually does vary, in fact depending on 10 different factors. This is of course relevant to alt. proc. because recipes often specify “20 drops”, “20 gtt” or “20 gt” which also means drops. Writer and photography / … Read more