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When he grew the mould by itself, he learned that it contained a powerful
antibiotic, pencillin.

(ii) Potato Chips- George Crum, a chef at the Carey Moon Lake House in Saratoga
Springs.

 What he was trying to make. A plate of fried potato.
 How was created. One day, a customer sent back his plate of potatoes many times and
kept asking for them to be more fried and thinner. Crum lost his temper, sliced the
potatoes insanely thin and fried them, until they were hard as a rock. To the chef's
surprise, the customer loved them and wanted more and this is how potato chips came

into existence.

(ii) The Peacemaker-John Hopps, an electrical engineer.

 What he was trying to make. Hopps was conducting research on hypothermia and was

trying to use radio frequency heating to restore body temperature.
 How was created. During his experiment, he realized that if a heart stopped beating due
to cooling, it could be started again by artificial stimulation. This realization led to the
invention of peacemaker.

(iii) Microwave Ovens- Percy Spencer, an engineer (with Raytheon Corporation).

 What he was trying to make. The engineer was conducting a radar-related research
project with a new vacuum tube.
 How was created. Spencer realized that the candy bar in his pocket began to melt during
his experiment. He then put popcorn into the machine and when it started to pop, he knew
he had a revolutionary device on his hands.

(iv) Inkjet Printers- A Canon engineer.

 How was created. After resting his hot iron on his pen by accident, ink was ejected from
the pens point a few moments later. This principle led to the creation of the inkjet
printers.

SOCIAL ENTREPRENEURSHIP

 Social entrepreneurs are ambitious and persistent individuals tackling major
social issues and offering new ideas for wide scale change. Social entrepreneur