Radar (Radio Detection and Ranging)
Using radio waves to determine the range, angle, or velocity of objects.
Core metadata
- ID: radar_radio_detection_and_ranging
- Era: Modern
- First known date: 1935 (exact)
- Region: United Kingdom, Germany, United States, and global defense/aviation
- Review status: source_checked
- Maturity: N/A
Prerequisites
- Cathode Ray Tube (CRT) Displays (cathode_ray_tube_crt_displays)
- Electromagnetism (Maxwell's Equations) (electromagnetism_maxwell)
- Electronics (electronics)
- Radio (radio)
Dependents
- Earth Observation Satellites (earth_observation_satellites)
- Orbital Launch Vehicles (orbital_launch_vehicles)
Fields
- None.
Node sources
- Radar: History of Radar (Encyclopaedia Britannica, 2026, textbook) • Supports: node
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 4
- Average edge confidence: 68%
- Prerequisite sources: 4
- expert_inference: 4
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Radio (radio) | enabling | 68% | expert_inference | Radio provides a capability that enables this technology without being the only possible path. |
|
| Electronics (electronics) | enabling | 68% | expert_inference | Electronics provides a capability that enables this technology without being the only possible path. |
|
| Cathode Ray Tube (CRT) Displays (cathode_ray_tube_crt_displays) | enabling | 68% | expert_inference | Cathode Ray Tube (CRT) Displays provides a capability that enables this technology without being the only possible path. |
|
| Electromagnetism (Maxwell's Equations) (electromagnetism_maxwell) | enabling | 68% | expert_inference | Electromagnetism (Maxwell's Equations) provides a capability that enables this technology without being the only possible path. |
|
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