Former NASA engineer reveals quickest way to defrost windscreens

As people across Scotland wake up to the first blanket of snow this winter, a former NASA engineer has some advice for early-morning commuters.

Ex-NASA engineer Mark Rober has uploaded a video explaining how to defrost car windows using the power of science - and four straightforward steps.

Forget newspaper, or de-icing spray or snapping your credit card in an attempt to scrape ice off your windscreen - there is an easier way:

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Step 1: Turn ON the heater at full blast - hot air can hold more moisture.

Step 2: Turn ON the air conditioning - this will help soak up the remaining moisture from the air.

Step 3: Turn OFF inside air circulation - winter air doesn’t have much absorption so keep it outside the car.

Step 4: Open the windows ever so slightly - for a few seconds, this will help exchange humidity in the car for the dry air outside.

If that’s too ordinary, and you’re a fan of MacGyver, Rober also has methods involving cat litter and shaving foam.

Ex-NASA engineer Mark Rober has uploaded a video explaining how to defrost car windows using the power of science - and four straightforward steps.

The full six-and-a-half minute video explains the science behind the four steps.

Rober was at NASA for nine years, seven of which were spent working on the Curiosity Rover.

Happy windscreen-clearing!

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