The Pacific Ocean is very, very big. Aeroplanes are big too -- but, compared to the Pacific Ocean, they are almost comically small. So, as rescuers finish up a week of searching unsuccessfully for Malaysia Air Flight 370, it's worth taking a second to marvel at what an impossible a task it is to find one little plane in that very big ocean.
The Washington Post is here to help. The paper just published a simple interactive feature that shows the intimidating scale rescuers have to deal with. It's one big grid with 160,000 squares, each of which represent one square mile of ocean and land where the rescuers are searching. The plane is in the center -- but you can't see it until you zoom in about ten times. It's insane.