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Block the sun. There are many ways that you can do this, such as hanging a damp sheet in an open window or closing the curtains, which has a sun-deflecting effect. Blocking out the sun can reduce the amount of hot air coming into your dwelling by approximately 50%. It can also help to keep the air moving – the faster it goes, the cooler you feel.

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Interesting fact:

Heat can easily reduce your mobile phone’s battery percentage. The hotter your phone becomes, the faster the battery goes down. So, keeping your phone out of the sun will help the battery last longer. According to Apple, the ideal temperature for an iPhone, for example, is somewhere between 0 – 35 ͦ. A similar situation can happen with your car. When the windows are open, it can increase the drag and make the car burn more petrol. Some good advice is to use the air conditioning.