Johannes "Hanns" Evangelist Hörbiger was an Austrian engineer from Vienna with roots in Tyrol. He took part in the construction of the Budapest Metro and in 1894 invented a new type of valve essential for compressors still in widespread use today.
- Occupation
- engineer, writer, astronomer
- Citizenship
- Austria
- Born
- November 29, 1860
- Died
- October 11, 1931