In Rome, the world's first paved streets were laid out in 170 B.C. The new streets were popular as they were functional in all types of weather and were easier to keep clean, but they amplified the city's noise level.

Compressive structures (i.e. a structure that stands on its own) would be similar to those used for aerial masts. While these structures might reach the agreed altitude for space (100 km), they are unlikely to reach ...Read More

Medical grade adhesives are in the same chemical family of cyanacrylate but use a more expensive version of the glue that has butyl or octyl esters making them safer for surgical work. Medical grade super glues have been ...Read More

Andrew Carnegie, one of the richest Americans ever, never carried any cash. He was once put off a London train because he did not have the fare.

Because microwave ovens cook so fast, microbes can survive on the surface of the food. To counteract this problem, cover the cooking dish with another dish of glass or ceramic, not plastic. The steam that accumulates will ...Read More

Oak trees are struck by lightning more often than any other tree. It has been theorized, this is one reason that the ancient Greeks considered oak trees sacred to Zeus, god of thunder and lightning.