Balance (biomechanics) – an ability to maintain the line of gravity (vertical line from center of mass) of a body…

Balancing a mass on your finger Mass: Demonstrating how the distribution of the mass of an object determines the position…

Hot air and helium have lower density than cold air, so balloons filled with these are “lighter than air”. density…

Balloon catheter – a tool to remove clots without major surgery. Since its first use in 1961, the balloon catheter…

What’s the problem? How can we make a bandage to cover a cut on someone’s finger so that it is…

Barometer Mercury – density of mercury, 13.5462 g/cm3 at 20°C, That’s engineering mercury – the only elemental liquid metal Engineering…

Single Leaf Bascule Bridge – engineering demonstration (video 6:04) This is a simple demonstration of a model that was constructed…

Aviation – the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. Aviation is derived from avis, the…

Aviation safety – the theory, investigation, and categorization of flight failures, and the prevention of such failures through regulation, education,…

The name “backhoe” refers to the action of the shovel. A backhoe digs by drawing earth backwards, rather than lifting…

The earliest tools were made of stone. Some predate early man as Neanderthal and other early ancestors used rocks and…

Automotive Engineering The automobile, late 19th century – Transformed daily life, our culture, and our landscape Between 1920 and 1970,…