NASA Engineer Revealed How to Defog Your Windshields Quickly

Defog Your Windshields

NASA engineer has a science-based method for defogging the windshield quickly, and he’s happy to share it with the world.

Self-described “friend of science” Mark Rober explains his four-step system in this five-minute YouTube video.

Rober breaks down in the video how he comes to this method, and why it works.

Before we start, it’s essential to understand the reason our windshield fogs up. This happens because the air inside the car is warmer than the air outside the car.

Warm air holds moisture, but when it gives max capacity, we get condensation. The fog on your windshield is the same as the condensation on your ice-cold can of soda on warm days.

The first thing you’ll want to do, once you start the engine, turns your car’s heater on.

Warm air contains more moisture than cold air.

After that, turn on your car’s air conditioning. This attracts moisture out of the air as it moves through the AC’s cold coils.

Then turn off inside air circulation. This will leave your car to pull in air from outside. Once that cool air is heated up, it will be able to absorb the moisture from your car.

Lastly, open as many windows as possible, even for a few seconds, to let the warm, humid air exit the car, and the dry cool air comes inside the car.

There are more tips in the video, so do check out the video.

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