SignalPath

SignalPath explores how humans send information across distance, from ancient visual signals to modern global communication networks.

Begin with smoke signals, drums, flags, and coded messages. Continue through the invention of the telegraph, Morse code, radio, telephone systems, fiber-optic cables, mobile networks, and satellite communication.

The app explains how information becomes a signal, how signals travel, why interference happens, and how communication systems protect information from errors or unauthorized access.

SignalPath includes lessons about:

• Early signaling and coded communication
• Telegraph systems and Morse code
• Radio waves and wireless transmission
• Telephone and mobile communication
• Fiber-optic cables and light-based signals
• Satellites and global positioning systems
• Digital data, compression, and transmission
• Signal interference and error correction
• Basic principles of secure communication
• Future communication technologies

Detailed lessons and short quizzes make technical concepts accessible to curious learners without requiring advanced knowledge.

SignalPath works offline and requires no account.

SignalPath — Follow every message from source to destination