The "Cobra Effect" is where a solution for a problem actually makes the problem worse.
21
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
Cash machines are as dirty as public toilets.
174
The mile is Latin for 1,000. The number of paces it took the average Roman!
36
Ice isn't slippery. What makes people and things slip on ice is water. A thin layer of ice melts when pressure is applied to it and it is this wet layer on top of the ice that is slippery.
153
