The Great Pyramid of Giza—the largest of Egypt’s pyramids—consists of about 2.3 million limestone blocks. The smallest of these weigh two tons, while the largest weigh over 60. History says laborers ...

Finding the right combination of brackets, bolts, pulleys and front-drive accessories is challenging for older cars. We've done the swap meet scrounging, the junkyard crawl, and we've even prowled ...

The accessory drives—meaning the pulleys and belts used to drive stuff like water pumps, generators/alternators, power steering pumps, air conditioning compressors, and the like—used on all vehicles ...

This experiment shows how a basic pulley system can be designed to brake itself, demonstrating clever mechanics with minimal components. Signal No. 3 in 5 areas as Super Typhoon Nando intensifies ...