Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
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The ball on top of a flagpole is called a 'truck'.
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An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
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If a car is travelling at 55 miles per hour it will travel 56 feet before the driver can shift his foot from the accelerator to the brake.
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Energy is being wasted if a toaster is left plugged in after use.
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There are only 14 blimps in the world.
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The first alarm clock could only ring at 4 a.m.
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