Bubbles freeze in cold US air

A TV weatherman has found some unusual ways to show how cold it is in America at the moment!

He blew bubbles which froze in mid air and didn't burst when they hit the ground.

In another experiment, the presenter took a frozen banana and managed to use it as a hammer to bang a nail into a wooden beam!

Temperatures in the state of Minnesota have dipped to -20C as the US midwest and northeast experience a big freeze.

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