From Railroad Tracks to Racetracks, 1870s
From Railroad Tracks to Racetracks, 1870s
How a robber baron and an eccentric inventor solved a millennia-old question about horses.
From Railroad Tracks to Racetracks, 1870s
From Railroad Tracks to Racetracks, 1870s

How a robber baron and an eccentric inventor solved a millennia-old question about horses.

How a robber baron and an eccentric inventor solved a millennia-old question about horses.

Foundations
Maiden Voyage, 1872–1876
Maiden Voyage, 1872–1876
Ashley Yeager | Jul 1, 2018
The Challenger expedition's data on ocean temperatures and currents, seawater chemistry, life in the deep sea, and the geology of the seafloor spurred the rise of modern oceanography.
China’s Flowers, 1922-1949
China’s Flowers, 1922-1949
Ashley Yeager | Jun 1, 2018
Austrian-American botanist Joseph Rock collected thousands of plant samples in his 27 years in the Middle Kingdom, leaving after the Communist Party’s takeover.
Among the Amish, c. 1960s
Among the Amish, c. 1960s
Diana Kwon | May 1, 2018
Victor McKusick’s pioneering investigations provided insight into hereditary disorders.
Bathtub Bloodbath, 1793
Bathtub Bloodbath, 1793
Shawna Williams | Oct 1, 2017
French revolutionary Jean-Paul Marat took on many roles over the course of his life, including physician and scientist.
Self-Experimentation Led to the Discovery of IgE
Self-Experimentation Led to the Discovery of IgE
Andrea Anderson | Jun 1, 2017
In the 1960s, immunologists took matters into their own hands—and under their own skin—to characterize an immunoglobulin involved in allergies.
Embryonic Evolution Through Ernst Haeckel’s Eyes
Embryonic Evolution Through Ernst Haeckel’s Eyes
Diana Kwon | May 1, 2017
The 19th century biologist’s drawings, tainted by scandal, helped bolster, then later dismiss, his biogenetic law.
A History of Screening for Natural Products to Fight Cancer
A History of Screening for Natural Products to Fight Cancer
Jef Akst | Apr 1, 2017
In the middle of the 20th century, the National Cancer Institute began testing plant extracts for chemotherapeutic potential—helping to discover some drugs still in use today.
Newton’s Color Theory, ca. 1665
Newton’s Color Theory, ca. 1665
Ashley P. Taylor | Mar 1, 2017
Newton’s rainbow forms the familiar ROYGBIV because he thought the range of visible colors should be analogous to the seven-note musical scale.
19th Century Experiments Explained How Trees Lift Water
19th Century Experiments Explained How Trees Lift Water
Ben Andrew Henry | Feb 1, 2017
A maple branch and shattered equipment led to the cohesion-tension theory, the counterintuitive claim that water’s movement against gravity involves no action by trees.