When sexual assaults started rising in Orlando, Fla., in 1986, police officers noticed women were arming themselves, so they launched a firearms safety course for them. Over the next 12 months, sexual assaults plummeted by 88 percent, burglaries fell by 25 percent and not one of the 2,500 women who took the course fired a gun in a confrontation.

What may happen in the next 100 years - from the year 1900

Beyflo - A concept auto navigation garden watering system for 2015, the concept was introduced by a designer named Yopi Djauhar - currently studying in Product Design degree course in Limkokwing university, Malaysia.