Noun:

ஞாயிற்று விட்ட அளவி,

heliometers's Usage Examples:

To Dollond in 1754 we owe the combination of Savary's idea of the divided object-glass with Bouguer's method of measurement, and the construction of the first really practical heliometers.

Struve's second suggestion has been adopted in nearly all succeeding heliometers.

Modern heliometers made with cylindrical slides measure angles over 2°, the images remaining as sharp and perfect as when the smallest angles are measured.

2 The diameter of Venus was measured with one of these heliometers at the observatory of Breslau by Brandes in 1820 (Berlin Jahrbuch, 1824, p.

An arrangement, afterwards described, has been fitted in modern heliometers for placing the screen in front of either segment by a handle at the eye-end.

Nor did the measures made by the Germans with heliometers come out any better.

The instruments used were heliometers, the construction and use of which had been greatly improved, largely through the efforts of Gill himself.

The four long-neglected small heliometers made by Fraunhofer were brought into requisition.

The fact remains that before 1820 2 Fraunhofer had completed one or more of the five heliometers (3 in.