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Just like the old explorers, even the tech-loving travelers of today hear a lot of rumors about their favorite tools. But how many of these rumors are true? Here at MarcoGizmo.com, we’re taking a closer look at the facts…

Myth: Your cellular phone emits radiation that can cause tumors.

Fact: It’s true that cell phones emit radiation when operating between frequencies of 850MHz - 1900MHz. While this radiation is harmful at high doses, the amount emitted by your cellular phone isn’t very significant - even if you had a hundred cell phones pointed at your brain.

Myth: You need to fully discharge your cell phone or laptop batteries before you can recharge them - or else your battery’s capacity will be affected.

Fact: The first thing you should do is to refer to your user’s manual and find out what type of rechargeable batteries you have. Nickel Cadmium (NiCd) batteries are notorious for having “memory effect”. This means that if you use 50% of your battery’s capacity and recharge it immediately, the battery will think that its full capacity is only the amount that you used up. This is why NiCd batteries should be fully discharged at least once every three months. This shouldn’t worry you if you’re using a Lithium-ion battery, since they are not subject to “memory effect”.

Myth: You shouldn’t use electronic devices in airplanes - you might cause a plane crash.

Fact: While not all electronic gadgets interfere with the plane’s navigational system, it’s still a good idea to keep the use of electrical devices to a minimum. Although most gadgets don’t affect the plane’s instruments, several small gadgets or one particular gadget can have a small effect. Carnegie Mellon University conducted a study and found that a portable DVD player caused a plane’s navigational system to be off by 30 degrees. While this is a small mistake than can easily be corrected, several of these low-probability mistakes multiplied over hundreds of daily flights can lead to accidents. Click here for a more comprehensive discussion on the subject.