header

Directory

References

Images

Discover

Car with a pickle design in the Zagreb Red Bull Soapbox Race, Zagreb, Croatia, September 14, 2019. (games, races, sports)

10 Unusual Sports

Statue of Nostradamus

Nostradamus and His Prophecies

Normandy Invasion: Omaha Beach. World War II. D-Day. Infographic. SPOTLIGHT VERSION

Facts and Figures About the Landings on Omaha Beach During the Normandy Invasion on June 6, 1944

The impeachment trial of Pres. Andrew Johnson, illustration from Frank Leslie's Illustrated Newspaper, March 28, 1868.

What If the President Is Impeached?

Lake Mead (the impounded Colorado River) at the Hoover Dam. The light-coloured band of rock above the shoreline shows the decrease in water level in the first few years of the 21st century.

6 Lakes That Are Drying Up

illustration of the walking titanosaurus, Patagotitan mayorum

Titanosaurs: 8 of the World's Biggest Dinosaurs

airplane in flight (plane, aircraft, flying)

7 Puzzling Plane Disappearances

header

brickwork

Also known as: perpend, throughstone

Learn about this topic in these articles:

use in masonry

In bond
A bond course of headers (units laid with their ends toward the face of the wall) can be used to bond exterior masonry to backing masonry. Headers used in this manner may also be called throughstones, or perpends. Units laid with their lengths parallel to the face of a…
Read More