There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Sony researchers have developed a refrigerator that only opens when you smile.
9
The cigarette lighter was invented before the match.
210
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
A small airplane can fly backwards.
75
Kleenex tissues were originally used as filters in gas masks.
46
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
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