“Green” means environmentally friendly and sustainable. Green chemistry creates products and processes that are safer and cleaner — from the … More

The Fibonacci sequence (also known as the Golden Ratio) has interested mathematicians, artists, designers, and scientists for centuries. The Fibonacci … More

Grace Hopper – (December 9, 1906 – January 1, 1992) – an American computer scientist and United States Navy Rear … More

U.S. EPA Mercury Capture System (video 4:59) – a solution to the severe health risks caused by mercury emissions from … More

from Middle : : Aerospace Technology To investigate glide angle, experiment with a straw rocket. Design a rocket and experiment with angle-of-attack … More

Isothermal chart Weather forecasting Global Climate Models General Circulation Model (GCM) – a mathematical model of the general circulation of … More

GPS – The Global Positioning System was first developed by the Defense Department in 1957 and became fully operational in … More

Gateway Arch reflects St. Louis’ role in the Westward Expansion of the United States during the nineteenth century. It was … More

Pictured: Close-up of the underside of a gecko’s foot as it walks on a glass wall. Van der Waals force … More

Gasoline engine – internal combustion engine which is often used for automobiles, aircraft, small mobile vehicles such as lawnmowers or … More

Giant Magellan Telescope – artist’s concept Giant Magellan Telescope (GMT), under construction in Chile, could help scientists answer big questions … More

Hazardous materials (HazMat) – any substance or material could adversely affect the safety of the public, handlers or carriers during … More

gaming – The act of playing a video, Internet or computer game. video game – an electronic game that involves … More