heliograph in a sentence
n.
📚 Grade Level: Grade 9, Grade 10, Grade 11, Grade 12
Definition
A heliograph is a device that uses sunlight to transmit messages by reflecting light signals.
Sample Sentences
- The early explorers used a heliograph to communicate across vast distances using sunlight.
- During the demonstration, the students learned how to operate a heliograph effectively to send messages.
- In ancient times, the heliograph was an essential tool for military signaling in remote locations.
- The inventor of the heliograph showcased the device's ability to transmit coded messages over long ranges.
- With advancements in technology, the traditional heliograph has largely been replaced by more modern communication methods.