science news

1.Trick to test remote

Remote is now an inevitable part of our life to operate may electronic devices. Remote is an Infrared transmitter giving coded signals to the IR Sensor of the device. The circuit inside the device decodes the signals from remote and do the jobs accordingly. Remote fails due to 3 reasons. 1. Dead battery 2. Loose contact or Rust in the battery terminals. 3. Failure of Infrared LED. So before repairing or purchasing a new remote, just try this simple trouble shooting.

1. Check the battery and replace new one. If problem persist …..

2. Clean the terminals in the battery compartment using a knife or sandpaper. Clean with cloth and replace the battery. If there is loose contact, just pull the spring type negative terminal and replace the battery. If the battery is not fixed properly, use a bit of thermocol or hard board between the batteries to hold them in place. Replace the cover and check. If problem persist…

3. Just check the Infrared LED on the front side. Since Infrared is invisible to eye we cannot see its light. So do this trick. Focus Mobile phone camera or Digital camera to the IR LED and press any key. If IR LED is OK, you can see the flashing Violet light which is infrared. If the IR LED is working properly, the Remote is good and the problem will be in the IR sensor of the device.

Reference : http://dmohankumar.wordpress.com/2014/06/06/trick-to-test-remote/

2. Why do Birds prefer Red Car for Pooping?

Really an interesting behaviour but annoying to the Car owners. Frequency of Bird Pooping on Red Cars is very high than on any other Cars. Birds Poop frequently as a Flight adaptation to reduce the body weight. They Poop before the take off and when feared. Birds have no Urinary bladder so the urine comes along with the faecal matter. This is another physiological reason for frequent Pooping. Then why they select Red cars mostly.

A study conducted over a period of two days using 1100 cars of different colors revealed some findings. During the study, drivers were asked to wipe of the bird droppings immediately after it appears. The study revealed that18 % birds Pooped on Red cars, 14% on Blue cars, 11% on Black cars, 7% on White Cars, 3% on Grey and Silver cars and only 1% on Green cars. So the study confirmed that, Bird prefers Red cars than any other cars to drop its Bomb.

Then why this colour selection for Pooping? Birds have very keen vision than human beings and can detect colours also. Most birds will be attracted towards Red colour because it is the colour of Ripened Fruits. The Reflecting Red colour of Car attracts birds and they sit on the tree above it. So the frequency of Pooping on Red cars will be higher than any other cars. The Green colour of the car has no effect on birds because it is the abundant colour in the nature. White, Grey, Silver colours make Fear on birds because they consider it as danger. That is why birds avoid White painted buildings.  But this varies depending on the species.