Insight Things

A scientific blog revealing the hidden links which shape our world

Tag: drag

High fuel consumption in winter

My dad told me that a car’s fuel economy is bad in winter, because the engine has to heat a lot more. Well, I read about cold engines, low tire pressure, higher rolling resistance and so on. They didn’t convince me. All together have a substantial impact,  I admit, but the most important factor of fuel consumption is not discussed sufficiently! more →

Wind strength and fuel consumption

Imagine you drive in your car against head wind and later you return with tail wind. When asked, most people tend to say that the force of the wind on average equals the situation when there is no wind at all. This is surprising since the same people will tell you that the air resistance (the aerodynamic drag) increases as the squared velocity increases. I will show you why wind is substantial when discussing causes of high fuel consumption! more →

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