Why ,How ,When Facts
Why do we dance when we are controlling pee?
It happens to each one of us. Sometimes our bladder gets full & there is urgent need to pee ,we sometimes are not able to go to washroom due to some reasons .Then we find ourselves either humming or hoping from one foot to other .It happens because when message of taking urgent action and the reality that situation does not allow us to do that - goes to the brain ,it gets translated into several rhyming displacement behaviours. That results into humming or some other amusing action. But do you know that remaining calm & still can help you to control longer.
Why do mosquitoes bite some people not others ?
Mosquitoes (females) find their pray with help of sight & smell. A female mosquito antennae has about 72 types of odour receptors, out of which 27 can recognise chemicals found in human sweat. These chemicals are octenol, nonanal & carbon-dioxide. The people having higher level of these chemicals in their sweat are bitten more by mosquitoes as they can find the smell of these chemicals easily to which their receptors are tuned.
Why do we have leap years ?
The no. of days in a year are based on no. of days taken by the Earth to complete one orbit around the Sun. It takes slightly more than 365 days, it is actually 365.256 .So it is about 1/4th day more every year.To keep it simple , these quarter days are added & after every 4 years ,we have one extra day in the year. These years re known as leap years.
Submitted by Prof. T.Cowe,Bond University ,Queensland