A Temprary Microphone !

Do you know ?

There is an interesting fact about Headphones i.e. they can also be used as a microphone !
Technically :
There is not much difference between the circuits of a Microphone and a Headphone , just the headphone is designed to spread voice and an microphone to capture the voice !

Working :
So if you connect the headphone in the microphone slot of your computer, you could use it as a microphone.
Just speak in the ear buds of the microphone, but please speak a bit loudly to be audible at the other end !

** Remember it is just a temporary solution !

Car Keys Inside The Car !!!

Have you ever locked your car keys inside the car ?

This is a very frustating event in which you can't blame anyone !

Well the solution come here :

If you have remote control car lock system in your keychain (Very Common These Days), you are saved !

** Just call some one at home at his/her cell phone and ask for the duplicate keys to someone at home.

** Now, as usual the key chain of duplicate key would also be having the remote control, so ask the person at home to press the unlock key on the remote.

** While the person press the unlock key hold your mobile phone about a 10-12 inches from the car door.

** The unlock signal will travel on the cell phone network and your car will be unlocked !

## Please note that on some networks the trick may not work !

Passenger Elevator Trick !

This is usefull for those who often use elevators !

When we press the floor no. button on the panel lift start moving. But if someone on the next floor calls the lift the lift stop for them, this could be very irritating in rush hours !

Now, if you Press the Floor No. Button and the Close Door Button both at same time then the elevator would not stop for any one in the way and will stop directly on the destination floor !

** Note in some elevator systems this trick might not work !