Google Images Jennifer Lopez green Grammy dress origin

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Jennifer Lopez’s dress exposed a gap in text search

In 2000, a highly popular search for a picture of Jennifer Lopez’s green Grammy Awards dress could not be answered well by text-only results. Google Images was developed after its developers recognized that gap.

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Evaporation can chill below room temperature

7°F in a 65°F room

In Benjamin Franklin’s experiments with wet ether, a thermometer cooled to 7°F while the room remained at 65°F. The result showed that evaporation can cool an object far below the temperature of the surrounding air.

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Morocco has America's oldest unbroken friendship treaty

Morocco recognized the fledgling United States as independent in 1777. The two countries signed their Treaty of Friendship in 1786, and it remains the United States’ oldest unbroken friendship treaty.

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