Technology
- Pathé Frères colorise black-and-white films by machine.
- Alfred Buchi files a patent for the turbocharger.
- Paul de Vivie invents a two-speed rear-wheel derailleur gear for bicycles.
- Pipe manufactures the first automobile with a hemi engine.
- Walter Griffiths invents a manually powered domestic vacuum cleaner.
- Reginald Fessenden invents the superheterodyne receiver.
- First bascule bridge to the design of Joseph Strauss built.
Read more about this topic: 1905 In Science