I remember being yelled at by elders, all the time for going to near a fan blowing air. It was not because they did not like the fan or they enjoyed yelling at me. Rather it was because the fan had blades, sharp blades because of which it was able to blow fast air. All those older people who always yelled, now have nothing to yell. Thanks to Dyson, who have come up with a new technology of fan. A fan that works efficiently and has no blades to worry about. Dyson fans has airfoil shaped ramp, l...