We told them to not leave their garage doors open, and not to make copies of the outside pedestrian gate key for the legions of maids and gardeners who descended on the complex every morning.

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Every hybrid motor needs an inverter, and the key component inside inverters is the integrated gate bipolar transistor, or IGBT.

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Following excavations in the early 20th century, European archaeologists claimed key features such as the remains of the famous Ishtar Gate -- the glazed brick gate decorated with images of dragons and aurochs, built in about 575 BC by order of King Nebuchadnezzar II as the eighth gate to the inner city.

CNN: Bringing Babylon back from the dead