HISTORY > APPARATUS
- Electroscopes
- Telescopes
- Antennas
- Interferometers
- Michelson
- Fizeau Interferometer
- Fabry-Pérot Interferometer
- Sagnac Interferometer
- White-Light Interferometer:
- LIGO
- Spectrometers
- The Optical Spectrometer / Spectrograph
- The RF Spectrum Analyzer
- The Gas Chromatograph
- The Mass Spectrometer
- Voltmeters and Electrometers
- Atomic Clocks
- Oscilloscopes
- Gravimeters (Absolute & Relative)
- Torsion Balances
- SQUID & Fluxgate Magnetometers
- Microwave Cavity Resonators & Fabry-Pérot Etalons
- Bolometers & Cryogenic Radiometers
- Smith Chart
- Satellites & Space Probes