Problem M. 261. (May 2005)
M. 261. Create a hair hygrometer to measure the relative humidity of air. Take measurements in various rooms of your flat and also in the open air at different times of the day.
Deadline expired on June 13, 2005.
14 students sent a solution. 6 points: Elter Zsolt, Gyenis András, Kocsis Vilmos, Lantos Judit, Pálinkás András. 5 points: Jankó Zsuzsanna. 4 points: 4 students. 3 points: 3 students. 1 point: 1 student.