Coal

"Everything that can be invented has been invented." Charles H. Duell, Commissioner, U.S. Office of Patents, 1899.

Scientists at NASA developed a gun specifically to launch dead chickens at the windshields of airliners, military jets and the space shuttle. The idea was to simulate the frequent incidents of collisions with airborne fowl and to test the strength of the windshields in collisions at maximum velocity.
Emissions

And the Lord spoke to Noah and said: "In six months I`m going to make it rain until the whole earth is covered with water and all the evil people are destroyed. But I want to save a few good people, and two of every kind of animal on the planet. I am ordering you to build an Ark." And in a flash of lightning He delivered the specifications for the Ark.

Engineers and scientists will never make as much money as business executives. Now a rigorous mathematical proof explains why this is true.

HAMMER: Originally employed as a weapon of war, the hammer now is used as a divining rod to locate expensive car parts not far from the object you are trying to hit.

As we all know, it takes one calorie to heat one gram of water one degree Celsius (C). Translated into meaningful terms, this means that if you eat a very cold dessert (generally consisting of water in large part), the natural processes which raise the consumed dessert to body temperature during the digestive cycle literally suck the calories out of the only available source, your body fat.