The 28-inch Photo-visual Refractor (Popularity: )

Exhibition from the Royal Observatory, Greenwich, that explains the history of this telescope via words ...

The Astrolabe (Popularity: )

Ancient astronomical computer.

Antique Telescopes (Popularity: )

An overview with photographs of many lesser known telescopes typical of their time.

Important Astronomers, their Instruments and Discoveries (Popularity: )

From the merket to the reflecting telescope in three pages.

Caltech Astronomy - History (Popularity: )

The telescopes at Mt. Wilson and Palomar.

Sir Martin Ryle - Nobel Lecture (Popularity: )

Radio telescopes of large resolving power.

Smithsonian Magazine - "Stars in Their Eyes" (Popularity: )

The exquisite telescopes crafted by Alvan Clark and his sons helped make the last half ...

Churches as Scientific Instruments (Popularity: )

Solar observatories built into 17th and 18th century cathedrals.

Adler Planetarium - Historical Collections (Popularity: )

Collection of instruments, past exhibitions, history department information.

Virtual Museum of Measuring Engines (Popularity: )

The history of modern astronomical measurement, emphasis on instruments.