Stunt photography. While going 18 kph, I captured the temperature on my bike with my iphone. Photobloggers, please, do not try this at home! I'm quite pleased it was in focus :-)
Imagine putting your face directly in front of a hair dryer - that is what it feels like to ride a bike downhill when the temperature is 42 degrees Celsius / 107.6 degrees Fahrenheit.
Today the high is expected for 35 degrees Celsius or 95 degrees Fahrenheit. It's been a long, hot summer. At the end of July when that photo was taken, we had an incredible and unusual heat wave in Europe.
Now if you live in Africa, Australia, India or any other desert-type of environment like in the southern / southwestern United States, you get these very hot temperatures regularly and you have the infrastructure (air conditioning, building codes etc) to deal with it. "No big deal" you might say. That's because your environment is equipped to handle it. In Germany we don't have air conditioning in the houses, stores or office buildings and we have energy efficiency building codes which are actually counterproductive, as I will explain next.
In another well-meaning but incredibly stupid attempt to save the planet by mandating high energy efficiency in building codes, our German government made the situation even worse. Not only for the people, but also for the planet. The ultra insulation for high "energy efficiency" which new buildings were required to install, ensures that the warmth stays inside the office or apartment building or single-family house.
After weeks and months of 30-40 degree temperatures, everything takes on that temperature: the walls, the furniture, your clothing, everything and anything inside the building warms up. All of those objects radiate their heat into the living / working space so that even if the outside temperature cools off at night, the inside stays warm because the energy efficient building "traps" this heat and makes sure it does not escape. You are a prisoner of energy efficiency.
As a result, we consume even more energy because now we need to install air conditioners to cool the living space. Installing them after the house is built is quite expensive, so in my house we only have air conditioning in the bedroom.
It's been scientifically proven* that when's it hot, people have "reduced cognitive function" i.e. they become more stupid. The bureaucrats who mandated energy efficiency must have been sitting in a hot office when they took that decision.