Radio
Wireless transmission of audio signals using electromagnetic waves.
Core metadata
- ID: radio
- Era: Modern
- First known date: 1906 (decade)
- Region: Global communications industry
- Review status: source_checked
- Maturity: established
Prerequisites
- Electromagnetism (Maxwell's Equations) (electromagnetism_maxwell)
- Electronics (electronics)
- Vacuum Tubes (Electron Control) (vacuum_tubes_electron_control)
Dependents
- Air Traffic Control (air_traffic_control)
- Bluetooth (bluetooth_short_range)
- Cellular Networks (cellular_networks)
- Communications Satellites (communications_satellites)
- Frequency-Division Multiplexing (frequency_division_multiplexing)
- Global Positioning System (GPS) (gps)
- Interplanetary Probes (interplanetary_probes)
- Advanced Meteorology (meteorology_advanced)
- Microwave Relay Networks (microwave_relay_networks)
- Mobile Broadband Networks (mobile_broadband_networks)
- Mobile Phones (mobile_phones)
- Nuclear Magnetic Resonance (nuclear_magnetic_resonance)
- Radar (Radio Detection and Ranging) (radar_radio_detection_and_ranging)
- Radio Broadcasting (radio_broadcasting)
- RFID Tracking (rfid_tracking)
- Satellite Technology (satellite_technology)
- Space Flight (space_flight)
- Television (television)
- Wi-Fi Wireless Networking (wifi_wireless_networking)
Fields
Field lanes
- Telecommunications & Networking: Foundations & Switching
Node sources
- Radio (Encyclopaedia Britannica, 2026, textbook) • Supports: node, maturity
- Guglielmo Marconi - Biographical (Nobel Prize, 2026, museum) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 3
- Average edge confidence: 68%
- Prerequisite sources: 6
- expert_inference: 3
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Electronics (electronics) | enabling | 68% | expert_inference | Electronics 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. |
|
| Vacuum Tubes (Electron Control) (vacuum_tubes_electron_control) | enabling | 68% | expert_inference | Vacuum Tubes (Electron Control) provides a capability that enables this technology without being the only possible path. |
|
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