Have you ever given it a thought that the human body and your smartphone may have a lot in common? See for yourself! Both your eye and your phone's camera have lenses and surfaces sensitive to light. The cerebral cortex is the most developed part of your brain. But no worries - your smartphone has a processor to do the same things. Without energy, you won't be able to function - and neither will your gadget! You get energy from everything you eat. When your smartphone is plugged in, it gets its own "food" - electricity. 

And hey, did you know people have an inbuilt navigation system? You can thank a part of your brain called the entorhinal cortex for your sense of direction. "Grid cells" are your brain's GPS system - they tell you where you are relative to the place where you started. Your smartphone's GPS uses radio waves between satellites and a receiver inside your gadget to get the data necessary to find out where you are and what time it is!

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