Just one image among many on the Internet, of a tide machine, together with Arthur Doodson, who used such tide engines to profile the tides at Normandy for D-Day.
This article, from the shipyard blog, about the tide predictions for D-Day, presents high quality images of several versions of tide machine, and an excellent story.
The Battle of Tarawa, however, in The Gilbert Islands, is an example of tide predictions gone wrong.
The Australian term Dodge Tide refers to a time when at least one tide is skipped, during a neap tide.
A popular description of Dodge Tides at Gulf St. Vincent, Adelaide Region, South Australia:
https://www.abc.net.au/news/2017-02-17/the-story-behind-adelaides-dodge-tides/8279870
Another view showing a Dodge Tide at Adelaide:
Another site, like Adelaide in Gulf St. Vincent, is Edithburgh, which has a more striking Dodge Tide is exhibited.
Tide tables are not useful, at such locations.
A link to a National Geographic webpage: Milestones in Space Photography.
Can we agree that our home is a very, very fine home, and that we must do everything we can to preserve and conserve it?
Several images of the Earth from space are nicely presented here.
Earth Rise
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| This image is of Earth Rise from the Moon is widely touted as a spark that started the Environmental Movement. True or Not, such photographs as these have inspired many of us to reconsider the fate of our trash. |
Astronauts have commented that our atmosphere appears from space as a thin layer, approximately at the same scale as a layer of paint on a basketball.
