Whakakiia te rerenga e whai ake nei: I whakarerea te rangahau a Doppler e nga kaupapa hurihuri o te 1848. I roto i te
Hungarian Revolution, ka rere ia ki Vienna. I reira i tohua ia hei upoko o te Institute for Experimental Physics i te Whare Wananga o Vienna i te 1850. I reira, ko Doppler, me Franz Unger, i whakaawe i te whanaketanga o te taiohi a Gregor Mendel, te papa o te ira tangata, he akonga ia i te Whare Wananga o Vienna mai i te 1851 ki te 1853.