বন্ধ এবং এর সূর্যের দন্ড ঘুরে মিরর ব্যবহার করে টেলিগ্রাফিক বার্তা পাঠানোর জন্য একটি যন্ত্রপাতি

heliograph's Usage Examples:

A heliograph (helios (Greek: ἥλιος), meaning "sun", and graphein (γράφειν), meaning "write") is a semaphore system that signals by flashes of sunlight.

The most extensive heliograph network established was in Arizona and New Mexico during the Apache Wars.

The heliograph was standard military equipment.

The heliograph uses a mirror to reflect sunlight to a distant observer.

" Heliograph Peak was home to a 19th-century heliograph station.

Long established are also the radio heliograph, a T-shaped array, and the decametric array operating at wavelengths between.

A heliograph is a semaphore that signals by flashes of sunlight using a mirror, often.

Obsolete names for Sun telescopes include heliograph and photoheliograph.

It has also been called a heliograph.

Approximate date – Henry Christopher Mance develops a practical military heliograph in the British Raj.

The Gauribidanur Observatory has a 6-meter radio telescope, a radio heliograph, a high resolution radio spectrograph and a gravitational laboratory.

He was knighted for developing the heliograph.

Army in the 1880s as a heliograph station.

It has several uses: the heliograph, a device.

California has low prominence but is also known as Signal Peak due to the heliograph station that was located on this peak around 1900.

telegraphy, or in some places where the telegraph was not available, by heliograph.

heliograph's Meaning':

an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on

Synonyms:

setup; apparatus;

Antonyms:

fire; negativeness; negativity;