Warm evening light in Denali National Park

Yukon

Camping on Haynes Point on Osoyoos Lake

British Columbia

Canyon hiking

Utah

botanical illustrations (aloe, dill, black henbane, rose, apium, mandrake, water lily, meadow sage)

from a manuscript of johann hartlieb’s kräuterbuch (book of herbs), a treatise dealing with the medicinal uses of various plants. this copy was created in northern bavaria, c. 1462

Camillo Golgi and Santiago Ramón y Cajal

tanks Taken from a moving train, the Amtrak Coast Starlight

Illustration From The HISTORY OF INFORMATION GRAPHICS

Statistical Atlas of the population of Paris

Thermosolar power plants are seen outside the city of Dunhuang, in northwest China. Also called “solar concentrators,” these plants use heliostat mirrors to focus the sun’s thermal energy on molten salt flowing through a central tower, which circulates into storage tanks and is used to produce steam and generate electricity. The larger circular array seen here is 1.7 miles wide (2.7 km), contains 12,000 mirrors and can displace 350,000 tonnes of carbon dioxide emissions every year. Also seen in the bottom-right are parabolic trough collectors, another method of solar thermal collection.

40.073657°, 94.432896°