Man has be fascinated by flight and over hundreds of years worked to achieve it. Balloons Airships Hindenberg – May…
healthcare
Health – a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.…
hearing aid
Hearing Aid – In 1898, American engineer Miller Reese Hutchinson patented the world’s first battery-powered hearing aid. Today’s models are…
heart valve
Diseases of the heart and circulatory system are a leading cause of death in the U.S. and a leading area…
head protection
When you bike, board, or play ball, you wear a helmet. But do you know how helmets work? ‘Smart’ football…
hand crank generator
Crank up some electricity How much electrical power can You generate Turn the crank and push and hold the switches…
hands-on circuits
There are so many great ideas for hands-on electrical circuits projects, we needs a separate place to put them all……
healthy babies
What’s the problem? 2017.12.30 Engineers Without Borders USA There are many unknowns when bringing a new baby into the world.…
greenhouse
garden variety Greenhouses convert solar light to heat, enabling year-round production and the growth (in enclosed environments) of specialty crops…
gunpowder, guns, firearms
Gunpowder, 10th century – Outsourced killing to a machine |firearm – a portable gun, being a barreled weapon that launches…
hand tools
Engineering is about problem solving. Many of life’s little problems can be solved by an engineer with the right tools.…
gyroscope
Gyroscope – The device is a spinning wheel on an axle. The device, once spinning, tends to resist changes to…
hand battery
The hand battery To do and notice Put your left hand on the aluminum plate and your right hand on…
gumball machine
Gumball machines History of gummbals – around 215 BC. the first vending machines were located in Egyptian temples and dispensed…
Great Wall of China
Great Wall of China – a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally…