Wednesday 27 July 2011

Cell phones do not affect Communication systems on Airplanes.



Airplanes are specially insulated against foreign radio signals, and their communication and navigation instruments operate on different frequencies from cell phones. The Federal Communications Commission (USA) is actually the agency responsible for the ban, since the signals could potentially block telecommunication systems on the ground.


If someone makes a phone call from a plane, the signal would bounce across multiple cell towers at once, which could prevent other calls from going through. Yet some airlines in Europe, the Middle East and Asia have started allowing cell phone usage on flights.

Monday 25 July 2011

Chocolate kills dogs!!


You may have heard people say that chocolate will kill dogs? Does that make sense? If I can eat chocolate, why can't my dog?
Dogs and people are different in lots of ways. For example, dogs can run around in the snow all day in their bare feet and it doesn't cause them any problems. People can run around barefooted in the snow for 30 seconds or so before it hurts. There are lots of differences like that between dogs and people.

It turns out that, for dogs, a chemical in chocolate called theobromine is the source of the problem. Theobromine is similar to caffeine. Theobromine is toxic to a dog when it ingests between 100 and 150 milligrams per kilogram of body weight.


Different types of chocolate contain different amounts of theobromine: It would take 20 ounces of milk chocolate to kill a 20-pound dog, but only 2 ounces of baker's chocolate or 6 ounces of semisweet chocolate.




Saturday 23 July 2011

Did you know?

You can recover data from a failing hard drive by putting it in the freezer for a few hours and then reinstalling it in the computer. 


While this method won't magically fix whatever is wrong with your computer, it can get your hard drive working long enough for you to recover important data before it gives up the ghost for good. This generally works best when the drive is making a tell-tale clicking sound caused by overheated metal parts that have expanded. Freezing the hard drive cools and shrinks the metal so the drive will mount properly and run long enough (hopefully) for you to copy your files to another source. :D



Thursday 21 July 2011

You Cannot Tickle Yourself...

You cannot tickle yourself. The cerebellum, warns the rest of the brain that you are about to tickle yourself. Since your brain already knows this, it ignores the resulting sensation, hence you can’t tickle yourself.