Category: Environment

What is anchored wall?

Anchored walls ('tieback' walls) These are vertical retaining walls supported by an “anchor,” or dead weight, fixed in the ground on the uphill...

What did Kenneth B Clark do?

Clark, pioneering educator and psychologist. This date marks the birthday of Kenneth Bancroft Clark in 1914. He was an African American psychologist, edu...

How big is a paper napkin?

Ordinary dinner napkins are 16″ to 18″ square, or similarly sized rectangles. Cocktail napkins are much smaller: perhaps 10″ to 12″ square. Paper cocktai...