A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The cigarette lighter was invented before the match.
210
The IRS processes more than 2 billion pieces of paper each year.
28
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
A small airplane can fly backwards.
75
