Hi, you're about to get smarter in just a few minutes with Curiosity Daily from

Curiosity.com. I'm Cody Gough. And I'm Ashley Hamer. Today you learn about how we

could use 5G as its own wireless power grid, how human screams communicate at least six different

emotions, and how friendships fall into three categories.

Let's satisfy some curiosity.

Nicola Tesla had a dream, and a new invention puts humanity one step closer to making it come true.

A team of researchers have figured out a way to harvest energy from electromagnetic waves in the air.

The breakthrough could, in theory, lead to Tesla's dream finally being realized, a power grid without any wires, thanks to 5G.

Researchers have known for a long time that a beam of radio waves can and transport energy through thin air.

That's not super surprising, given that pretty much every form of wireless communication uses electromagnetic energy to encode data.

But there's a huge difference between the amount of energy it takes to power a phone and what it takes to encode the data on that phone.

Data just doesn't need much energy at all.

Electromagnetic waves used for communications are so weak that harvesting useful energy from them was a non-starter,

until 5G came along.

Here's what's new. Researchers at Georgia Tech have used 3D printing to create a special

antenna that can capture energy from 5G transmissions. They managed to transmit 6 1 millionths of a watt from a 5G transmitter in their

lab to the newly designed antenna. Now for comparison an LED light bulb uses about 1 million times more electricity and the signal traveled about the length of a pool table.

But it was possible because 5G transmits information

using electromagnetic waves that are much shorter

than the waves traditionally used to send data.

Those shorter waves contain more energy and offer a lot more

bandwidth, but it comes at a cost. They can't travel that far. That's why

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