Karl Ferdinand Braun ( 1850-ngien 6-ngie?t 6-ngit – 1918-ngien 4-ngie?t 20-ngit ) he Tet-koet ke yit-chak vu?t-li-ho?k-ka . Ki chhai 1909-ngien tet-to Nobel Vu?t-li-ho?k Chiong .