A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12
The first alarm clock could only ring at 4 a.m.
120
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The United States produces enough plastic film annually to cover the entire state of Texas.
13
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7
Any modern jet is capable of breaking the sound barrier.
34