century – Page 2

Groundbreaking discoveries in science often come with two iconic images, one representing the breakthrough and the other, the discoverer. Known as Mary Beale’s ‘Portrait of a Mathematician,’ could the circa 1680 painting depict Hooke? Mary Beale, CC BY For example, the page from Darwin’s notebook sketching the branching pattern of evolution often accompanies a portrait of Darwin in his early years when the notebook was written. Likewise the drawing of the orbits of the moons of Jupiter often accompanies a portrait of Galileo. Hooke’s famous etching of the tiny magnified cells he saw in a piece of cork. Robert Hooke, Micrographia, 1665/Wikimedia Commons, CC BY Another groundbreaking discovery in science was the discovery of the cell by Robert Hooke (1635-1703). The iconic image of the brea...

Delays and long lines at polling places during recent presidential primary elections – such as voters in Texas experienced – represent the latest version of decades-long policies that have sought to reduce the political power of African Americans in the U.S. Following the Civil War and the extension of the vote to African Americans, state governments worked to block black people, as well as poor whites, from voting. One way they tried to accomplish this goal was through poll taxes – an amount of money each voter had to pay before being allowed to vote. This practice was abolished by the passage of the 24th Amendment in 1964. Further protections for nonwhite voters came with the Voting Rights Act, which closely followed the Selma to Montgomery civil rights protest marches 55 years ago, in...

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The mystery of the missing portrait of Robert Hooke, 17th-century scientist extraordinaire

Closing polling places is the 21st century’s version of a poll tax