The ball on top of a flagpole is called a 'truck'.
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Any modern jet is capable of breaking the sound barrier.
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Energy is being wasted if a toaster is left plugged in after use.
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The first hard drive available for the Apple II had a capacity of only 5 megabytes.
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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.
25
The life boat was patented in 1845!
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Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
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