Showing 1780 results

This item contains certificate and its citation of the "Shanti Swarup Bhatnagar Prize" for the year 1970 for his outstanding contributions in Physical Sciences.

This item was about the total solar eclipse that occurred on 16 February 1980. In this photograph, we can see that only the Sun's corona is visible to us and captured.

This letter was related to speech delivered by Dr.M. K. Vainu Bappu, Director, IIA on the celebration of Silver Jubilee of Uttar Pradesh Observatory, Nainital, on 4th Novermber 1979

The book Stellar Motions by William Wallace Campbell in 1913 has about 176 pages. It delves into the movement of stars.

This item was a optical instrument named as Stereoscope. Stereoscopes are apparently those optical devices that help to view the two images separately and with relaxed eyes. There are two types of stereoscopes as: lens or pocket stereoscopes and mirror stereoscopes. Lens or pocket stereoscopes are great for viewing the whole overlap area of prints up to 9 cm × 13 cm or parts of larger patterns. On the other hand, mirror stereoscopes were designed to accept standard 23 cm × 23 cm metric air photos and work well with A4/US letter-sized prints. Most models come with magnifying options up to eight times, which is pretty impressive. One cool thing about mirror stereoscopes is that they are large enough to allow the analyst to draw beneath them, so it is possible to trace objects identified in the stereoview with a pen onto one of the images or a transparent overlay. However, it's important to remember that this sketch wouldn't have the geometric properties of a map as it contains all distortions present in the base image.

This fonds consists of newspaper clippings on the study of supernova phenomena.

The item contains six telegraphs from the Telegraph Director in Bombay, with four directed towards Kodaikanal and two towards Chetput(Chennai). One is a request for a copy of the magnetogram taken during the magnetic storm.

The item has two telegraph, one was John Evershed asked to send his date of visit and journey from Kodaikanal and the second one was mentioning the New Zealand govt acceptance of terms proposed for his visit as shown at Simla.

The item is a telegraph about telegraph lines affected by magnetic storm

This fond encompasses materials centred around the achromatic telescope and its diverse mountings. It features detailed figures of the telescope and incorporates a comprehensive catalogue of instruments crafted by Troughton and Simms.