In the laboratory, Empa researchers simulate sunlight and airflow using infra-red light and a fan.
Any cyclist who wears a helmet knows the feeling: heat builds up under your helmet and the sweat starts to flow, especially in summer. As a result, many cyclists will take a risk and not even wear a helmet. A research team at Empa has now studied the flow of heat under cycling helmets in detail - the first step towards "sweat-free" protective headgear. The days are getting longer, temperatures are rising and the cycling season is upon us. Families, tour riders, amateur and professional cyclists, as well as people who cycle to work, want to do something good for their health. And without a doubt, cycling is one of the healthiest sports - as long as cyclists wear a helmet to protect their head. A survey by the Swiss Council for Accident Prevention (bfu) showed that the proportion of cyclists wearing helmets tripled between 1998 and 2015.
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