Interest
Proportion of Hacker News items mentioning "telescope" over time.
Mentions
Total number of Hacker News items mentioning "telescope" over time.
A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. Originally, it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an optical telescope. Nowadays, the word "telescope" is defined as a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors. Read more on Wikipedia