current mark

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Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya

The Fastest Animals on Earth

Thanksgiving Turkey with all the sides

Why Do We Eat Turkey on Thanksgiving?

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

7 of the World’s Deadliest Shipwrecks

NBA Lakers Celtics Finals Kevin Garnett shooting.

10 Great Sports Rivalries

The tomb of Saint Nicholas in the crypt of the Basilica di San Nicola, Bari, Apulia, Italy

Do the Relics of Saint Nicholas Really Emit a Holy Substance?

Dr. Martin Luther King Jr. addresses marchers during his "I Have a Dream" speech at the Lincoln Memorial in Washington. August 28th 1963

Was Martin Luther King, Jr., a Republican or a Democrat?

current mark

geology

Learn about this topic in these articles:

sedimentary rock deformations

In sedimentary rock: Deformation structures
Current marks can form by the action of water currents on upper surfaces of the beds or by “tools” (such as wood and fossils) that are transported by currents over soft sediment.
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