Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific instrument
|
| gptkbp:component |
lighthouse
lens fixed mirror observer's eyepiece rotating mirror |
| gptkbp:historicalSignificance |
first accurate terrestrial measurement of speed of light
|
| https://www.w3.org/2000/01/rdf-schema#label |
Fizeau–Foucault apparatus
|
| gptkbp:introducedIn |
gptkb:France
mid-19th century |
| gptkbp:inventedBy |
gptkb:Hippolyte_Fizeau
gptkb:Léon_Foucault |
| gptkbp:method |
measuring time delay of light reflection
|
| gptkbp:notableMission |
gptkb:Fizeau's_1849_speed_of_light_measurement
gptkb:Foucault's_1862_speed_of_light_measurement |
| gptkbp:principle |
rotating mirror
|
| gptkbp:relatedTo |
gptkb:optics
physics speed of light |
| gptkbp:usedFor |
measuring the speed of light
|
| gptkbp:bfsParent |
gptkb:Hippolyte_Fizeau
|
| gptkbp:bfsLayer |
7
|