English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In the year 1846 an attempt was made to obtain the consent of the Lords of the Admiralty to run a railway through Greenwich Park, distant only 860 feet from the Royal Observatory, which would in the opinion of many competent judges have been most injurious to that Establishment. Such consent their Lordships refused; but as I was assured on high authority that this attempt was to be repeated, and that too with the fullest confidence of success on the part of its projectors and supporters, I determined to make experiments which might bear more decisively on the question of railway tremors, as affecting that Observatory, than those previously made by myself and others. For this purpose it seemed indispensable that the station selected for making them should geologically resemble that of Greenwich, and that the astronomical means employed to detect the existence and determine the intensity of the tremors should be, optically, at least equal to the telescope of the Greenwich Mural Circle.

Experiments, made at Watford, on the vibrations occasioned by railway trains passing through a tunnel