Use This Method from a NASA Engineer to Defog Your Windshield

Use This Method from a NASA Engineer to Defog Your Windshield

N Melo
by N Melo
December 7, 2020 0

Use This Method from a NASA Engineer to Defog Your Windshield

How to quickly defog your windshield
This tip comes to us from Mark Rober, a former NASA engineer and self-described “friend of science.” In a five-minute YouTube video, he walks us through his four-step method for defogging your windshield in half the time. (Note that the title on the still below says he’ll be talking about defrosting windows, but in the actual video, he only addresses defogging.)

In the video, Rober uses the scientific method to test out a variety of techniques, before landing on the one that he found works the best for defogging your windshield and car windows. Here are the steps involved:

Turn your car’s heater on full-blast. Hot air can hold more moisture.
Turn your car’s air conditioning on. According to Rober, this pulls moisture out of the air as the air passes over the AC’s cold coils.
Make sure inside air circulation is off. “Winter air is cold, and we know it doesn’t hold much moisture,” Rober explains. “So if you bring it into your car and heat it up, it has a lot of absorption capacity.”
Crack as many windows as possible—even for a few seconds—to allow for the exchange of the humid car air with the dry cold air outside.

N Melo
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