alchemist

Inside the Alchemist’s Workshop

What tools would an alchemist use in the quest to transmute other elements into gold?

There May Be a Ninth Planet (And It’s Not Pluto)

Caltech astronomer Michael Brown has proposed the existence of a ninth planet, the existence of which would explain the strange orbits of six KBOs. 
Sperm whale

What Is Ambergris and Where Does It Come From?

Ambergris, a waxy-like substance found in perfumes, has a unique origin.
Workers are dwarfed by the 10-foot Cardiff Giant as they dig him out of his "grave" in Cardiff, N.Y., in this 1869 file photo. AP Photo/Farmers Museum, HO)

The Cardiff Giant: The Biggest Hoax of the 19th Century

The Cardiff Giant was the greatest hoax in an era of hoaxes.
"Albert Einstein 1947" by Photograph by Oren Jack Turner, Princeton, N.J. - The Library of Congress. Licensed under Public Domain via <a href="https://commons.wikimedia.org/wiki/File:Albert_Einstein_1947.jpg#/media/File:Albert_Einstein_1947.jpg" target="_blank">Wikimedia Commons</a>

Albert Einstein: Genius and Anti-racist

A look at Albert Einstein's passionate fight against racism.

The Soda Jerk and the Periodical

The history of scientific periodicals starts with Benjamin Silliman's upstart publication.
Bruce Holsinger

The Medieval Historical Figures Behind Bruce Holsinger’s Novels

Discover the real men Bruce Holsinger based his characters on.

The Solar Origins of Dendrochronology

Historian George E. Webb recounts the intertwined relationship between solar physics and dendrochronology

A New Engine Sends NASA’s Dawn Spacecraft on Its Way

Dawn spacecraft's mission to Ceres is made possible by a brand new ion engine that runs off individual atoms.

Ole Rømer and the Speed of Light

September marks two significant dates in the early history of astronomy and physics—the birthday of Danish astronomer Ole Rømer ...