Energy is being wasted if a toaster is left plugged in after use.
21
The first alarm clock could only ring at 4 a.m.
120
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.
-4
A small airplane can fly backwards.
75
Whale oil was used in automobile transmissions as late as 1973.
56
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
