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Directory

References

Discover

World Data Locator Map: Australia

Is Australia an Island?

Gills of three old specimens of webcap fungus (Cortinarius) in Gloucestershire, South West England. toxic, fungi, poisonous mushroom

7 of the World’s Most Poisonous Mushrooms

Vietnam War. Operation Georgia. U.S. Marines bombing bunkers and tunnels used by the Viet Cong. May 6, 1966

9 Questions About the Vietnam War Answered

Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.

Why Is the Mona Lisa So Famous?

Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)

All 119 References in “We Didn’t Start the Fire,” Explained

green digital binary symbols

What Comes After Terabyte?

Russian grand duchess Anastasia; undated photograph. (Anastasiya Nikolayevna, Tsar Nicholas II)

Did Duchess Anastasia Survive Her Family’s Execution?

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construction

Learn about this topic in these articles:

use in carpentry

In carpentry
Frequently stiffening braces are built between studs at midpoint and are known as noggings. Window and door openings are boxed in with horizontal 2 × 4 lumber called headers at the top and sills at the bottom.
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