Hendrik Casimir

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Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

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

Marriage. A couple getting married during a church wedding ceremony. (religion, ceremony, bride, groom)

The Seven Sacraments of the Roman Catholic church

New Zealand. Political/Physical map. Includes locator.

Where Is “Old Zealand”?

Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

Hendrik Casimir

Dutch physicist

Learn about this topic in these articles:

Casimir effect

In Casimir effect
…in 1948 by Dutch physicist Hendrik Casimir.
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