DULUTH — Did you receive a telescope as a holiday gift? Even if it was years ago and that instrument is now hidden away in an attic, consider taking it out again. There are all sorts of wonderful ...

I usually write about telescope dos and don'ts around the holiday season, but I thought I'd write about it now for a change. Here are the most important rules to remember. 1. Never, a million times ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Reflecting telescope made in the ...

THE Imperial Russian Government in 1912 ordered from Messrs. Sir Howard Grubb and Sons, Ltd., a forty-inch reflecting telescope, and the preliminary designs for the instrument were made in ...

THE issues of Engineering for March 9 and 30 and April 20 contain a fully illustrated description of the 74-in. reflecting telescope now being completed by Messrs. Sir Howard Grubb, Parsons and Co., ...