Brian Tanner's Outputs (2)

‘Travelling Optics: Robert Grosseteste and the Optics behind the Rainbow’ (2021)
Book Chapter
Gasper, G. E., Tanner, B. K., Sønnesyn, S. O., & El-Bizri, N. (2021). ‘Travelling Optics: Robert Grosseteste and the Optics behind the Rainbow’. In C. Etheridge, & M. Campopiano (Eds.), Medieval Science in the North: Travelling Wisdom, 1000-1500 (45-75). Brepols Publishers

Magnifying Grains of Sand, Seeds, and Blades of Grass: Optical Effects in Robert Grosseteste’s De iride (On the Rainbow) (circa 1228–1230) (2021)
Journal Article
White, R. C., Gasper, G. E., McLeish, T. C., Tanner, B. K., Harvey, J. S., Sønnesyn, S. O., …Smithson, H. E. (2021). Magnifying Grains of Sand, Seeds, and Blades of Grass: Optical Effects in Robert Grosseteste’s De iride (On the Rainbow) (circa 1228–1230). Isis: A Journal of the History of Science Society, 112(1), 93-107. https://doi.org/10.1086/713724

In his treatise On the Rainbow (De iride), composed nearly four hundred years before the first known telescope, the English polymath Robert Grosseteste identified three striking optical effects: distant objects can be rendered close by; close-by larg... Read More about Magnifying Grains of Sand, Seeds, and Blades of Grass: Optical Effects in Robert Grosseteste’s De iride (On the Rainbow) (circa 1228–1230).