A quantitative phase contrast microscopy image of cells in culture. The height and color of an image point correspond to the optical thickness, which only depends on the object’s thickness and the relative refractive index. The volume of an object can thus be determined when the difference in refractive index between the object and the surrounding media is known.
PoetryandScience.com is a literary ezine set precariously at the intersection of poetry and science. You may wish to read the mission statement. It is managed and edited by Mark Underwood (@knowlengr). PoetryandScience.com was launched in 1999, with very intermittent curation.
