What Happens if You Don’t Put Your Phone in Airplane Mode?

At this moment, there are signals that you can’t see moving through the air near you.

These signals are big waves of energy that carry information between computers, GPS devices, cell phones and other devices.

The air is full of signals from routers, satellites and people on airplanes who haven’t turned on airplane mode on their phones.

So, what does airplane mode mean?

In this TED Talk, Lindsay DeMarchi talks about why this setting is important.