Debora and I wanted to find out how long you need to ride a bike to produce enough energy to dry your hair with a hair dryer.
We found out that a women (1.70m/63kg) is able to produce 120 Watt per hour, if she rides the bike for one hour.
Every time after showering we both blow dry our hair, but how much watt does a hair dryer need?
We found out that a hair dryer needs 2000 Watt to dry a womans midle long hair in 8 minutes.
So we calculated the number of hours needed to produce 2000 watt while riding the bike.
What is the result?
[please upload the image again in the correct way]