It's summer and although you try to park somewhere shady the sun always takes its toll. At this time it is usual to get to the car, sweating and loaded with barges and also tired and sweaty children, wanting everything except spending even more heat.
That is why we usually enter the car, from which almost literally fire comes out, to turn it on quickly, lower the windows and put the air conditioning at full power.
Well, to avoid getting into the car at such high temperatures and to help the (blessed) air conditioning a bit, we are going to explain today a very simple method to lower the interior temperature of the car near 8ºC in less than a minute.
The idea is to get the inside air out of the car and be replaced by outside air, which although it will remain hot, will always be cooler.
To do this we must lower one of the front windows of the car (usually the one facing the road) and go to the other side to use the opposite door as a fan.
First We will open and close the door five times very quickly. It is not necessary to slam the door, but to do it quickly to quickly move the air from the inside out (through the window) and so that quickly, when opening, there is a suction of air from the outside in, also through the open window .
After this, with more angle, the same maneuver is done again, but more slowly. In this way, the same effect of changing the interior air by outside air is still achieved and, in less than a minute, we will have achieved lower the car temperature by about 8ºC.
Then we can enter, we and the children, the car being less hot and having to wait less for the interior temperature to be more comfortable.
In this video that I leave below you can see the invention in action:
