nuclear envelope

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The Battle of New Orleans, by E. Percy Moran, c. 1910. Andrew Jackson, War of 1812.

26 Decade-Defining Events in U.S. History

Gilles de Rais (1404-1440). Breton baron, marshal of France. Fought in guards of Joan of Arc. Accused of being serial killer of children.

Gilles de Rais: History’s First Serial Killer?

Christopher Columbus arriving in the New World, 1492. Columbus presents gifts to the first natives to greet him on his landing in America. Columbus set out to discover a westward route to Asia. (Native Americans, colonization of the Americas)

Columbus Day and Its Discontents

Election - Button that says Vote. Badge pin stars and stripes politics campaign

Why Are U.S. Elections Held on Tuesdays?

Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)

Cruel and Unusual Punishments: 15 Types of Torture

Andrew Jackson delivering a speech while on his way to Washington, D.C., for his inauguration in 1829. From Harper's Weekly, 1881.

5 Remarkably Close U.S. Presidential Elections

Northern lights or Southern lights, also called Aurora Borealis. Luminous phenomenon of Earth's atmosphere. (magnetism; luminous atmospheric display)

What Causes the Northern and Southern Lights?

nuclear envelope: Media

biochemistry

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endoplasmic reticulum

endoplasmic reticulum

Endoplasmic reticulum, a continuous membrane system in eukaryotic cells that plays...

Encyclopædia Britannica, Inc.

mitosis

mitosis

The process of cell division by mitosis.

Encyclopædia Britannica, Inc.