This innovation was created by mistake when Alexander Fleming left a pile of dirty petri dishes stacked up at his workstation, and later discovered that mold had killed the bacteria that grew on them.
What is penicillin.
100
This social network took 2 years to achieve a mass audience of 50 million, and today users exceed 2 billion.
What is Facebook.
100
Invented in 1948 by Bell Labs, this electronic device carried and amplified electrical current.
What is the transistor.
100
Hewlett Packard, Google, Apple and Microsoft were all invented in one of these, where you normally park your car.
What is a garage.
200
This popular product was discovered when Spencer Silver failed to make a super strong adhesive for 3M Laboratories but came up with a weak glue instead.
What is Sticky Notes (or Post-Its)
200
This technology, which people listen to, took 38 years to reach a market audience of 50 million.
What is the radio.
200
This is the first known calculator, invented in Babylonia in 2400 BC.
What is the Abacus.
200
This keyboard was created after the current QWERTY, is actually 20 times more efficient, but never took off because of diffusion barriers.
What is the DVORAK.
300
This technology, which allows devices to connect to the Internet or communicate with each other wirelessly, was developed from a failed experiment to detect mini black holes.
What is WiFi.
300
This technology which people watch, took 13 years to reach a market audience of 50 million.
What is television.
300
This is the name of the first sophisticated browser that was developed in 1992.
What is Mosaic.
300
This is what Facebook will do to you if you hack into their company.
What is pay you $500.
400
This color was invented when an 18 year old chemist was trying to create an artificial version of the malaria drug quinine, producing a dark oily sludge that turned silk a striking shade of purple.
What is mauve.
400
This tiny music machine created by Apple took 3 years to reach a market audience of 50 million.
What is the iPod.
400
Invented in 1958, this invention incorporated all of the computer's electrical parts -- transistors, capacitors, resistors, and diodes into a silicon chip.
What is the integrated circuit.
400
This is the only state whose name can be typed in a straight row of a keyboard letters.
What is Alaska.
500
According to legend, this material was invented via two accidents, one of which occurred when Charles Goodyear combined rubber and sulfur and accidentally put it on the stove.
What is plastic.
500
Over 220 million of these are trashed each year in the US, filling up landfills.
What are computers.
500
This innovation allows users to select icons on the computer screen instead of writing commands.
What is the Graphical User Interface, or GUI.
500
This is the phone number that Steve Wozniak had to give up from his collection because babies playing with phones kept calling it.