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UKW Drehfunkfeuer, im Hintergrund TACAN (militärisches Navigationssystem)
Tempelhofer Feld, Berlin
53937
You might want to see the difference between "old and modern" navigation. Then check out this image:
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What's better..?? I leave this open for present and future seaman to answer. (Believe i know the answer......)
Dall-E3 - PS Beta
These old Riverside Buildings are seen at the Towns Riverhead ..The Driffield Navigation is an 11-mile waterway, through the heart of the Holderness Plain to the market town of Driffield, East Riding of Yorkshire, England. .It was first opened in 1770..
On the Calder and Hebble Navigation. No idea why the bridge is called this, it's nowhere near Beeston.
Walking Birmingham Canals in July 2021. This is about a mile out of Gas Street Basin on the Wolverhampton main line of Birmimgham Canal Navigations. Going under the bridge on the left is the Icknield Port Loop, whilst on the right hand edge of the photo is the start of the Soho Loop.
The Birmingham to Wolverhampton main line canal, constructed between 1768 and 1772 to the design of James Brindley. Merger with the Birmingham & Fazeley Canal in 1784 created a combined company that ten years later renamed itself as the Birmingham Canal Navigations, eventually having some 160 miles of waterway, 100 miles or so of which remains in use.
Although none are in view here, on this hot day there were numerous craft on these 'narrow' canals, the majority being fairly traditional narrow boats of 60 or 70 foot length.
This is the point where The River Hull flows into the River Humber..Taken from the top floor of Hulls award winning Aquarium "The Deep"..This Area is known as "Sammys Point"
I'm going to crawl out of my hole of darkness and despair and maybe try to see through a different light today despite the 4" of snow we received last night after a forecast of less than an inch.
We are fortunate as photographers and/or artists to have developed a way of seeing things differently and many of us have extrapolated that seeing into other aspects of our lives.
We may experience some very difficult times ahead, but right now we have the ability to share our ways of seeing - the world around us however restricted with those whose worlds have been totally upended and could use a view of a wide open landscape or spring flowers blooming, or whatever brightens your day.
I want to thank all of my photographer/artist friends who have helped me to develop my eye and keep incredible imagery in front of my face on Facebook, Instagram and Flikr on a daily basis.
And here is a shout out to those who are keeping us connected. Thanks to my grandson who despite yesterday's earthquake in SLC goes to work to climb cell phone towers to keep us all connected.
Manakara (Madagascar) - Le canal des Pagalanes, a été creusé au début du siècle dernier par les populations locales. Sans engins de travaux publics, uniquement avec de pelles, des pioches et des charrettes tirées par des zébus. Un projet titanesque sur 700 km du gouverneur français de l’époque, le général Galliéni.
Le canal a été progressivement abandonné au profit de la route pour le transport des marchandises. Aujourd’hui, cet axe n’est véritablement navigable que sur 150 km. Faute d’entretien, le reste du canal s’ensable. Seules les pirogues des populations locales qui résident sur les rives des Pagalanes, peuvent l'emprunter. Le faible tirant d’eau de leurs embarcations leur permet de naviguer avec une profondeur n’excédant pas 30 centimètres d’eau. Mais les nombreux bancs de sable qui obstruent l’axe de communication obligent les piroguiers à pousser régulièrement leur embarcations
Navigation on foot
Manakara (Madagascar) - The Pagalanes canal, was dug at the beginning of the last century by the local populations. Without public works machinery, only with shovels, pickaxes and carts pulled by zebus. A titanic 700 km project by the then French governor, General Galliéni.
The canal was gradually abandoned in favor of the road for the transport of goods. So today, this axis is only truly navigable for 150 km. lack of maintenance, the rest of the channel is silted. Only the people who live on the banks of the Pagalanes use it daily.
The shallow draft allows them to their canoes to sail with a depth not exceeding 30 centimeters of water. But the many sand banks which obstruct the communication axis force the boatmen to regularly push their boats
Focal Length (35mm format) - 360 mm
Willst du mich größer sehen klicke in das Bild
If you want to see me bigger click into the picture
A spotless Spotted Sandpiper carefully picks its way through the sharp shells stacked on the pylons.
Cape Cornwall is near St Just in the far south-west of Cornwall, and much of the land here belongs to the National Trust. A tin mine operated intermittently in between 1838 and 1883, and the old ventilation shaft chimney, dating from 1864, remains on the top of the cape as an aid to navigation.
In 1907 De Beers chairman Francis Oats built Porthledden House here. This is a 11,660 square feet country house based on one in South Africa. It remains in private hands.
For more details visit en.wikipedia.org/wiki/Cape_Cornwall_Mine.
Chronomètre de marine
Il fut un temps où les navigateurs devaient transporter l'heure avec eux. Le chronomètre de marine était un instrument de haute précision. Réglé au départ, on connaissait sa marche, avance ou retard. Il était remonté une fois par jour.
Toute erreur dans l'heure devenait une erreur de longitude. A raison de environ 1,5 km pour 4 secondes d'erreur du chronomètre. Dans certains ports, des observatoires astronomiques permettaient de connaître l'erreur.
A l'époque de Cook ou Lapérouse, ils finissaient par avoir des erreurs de plusieurs minutes de temps (>100km en longitude)
Quand ils pouvaient, ils pratiquaient des observations de distances lunaires. Après de savants calculs, ils connaissaient l'heure avec la précision de la minute soit 15 à 30km d'erreur sur la longitude.
Jusque dans les années soixante, on trouvait encore sur les cartes des îles mal placées en longitude. Il m'est arrivé d'en signaler au Service hydrographique de la Marine...
The navigation light is about 8 feet tall and used to tell boats where not to travel. It's not a lighthouse because there is no building attached to it. I textured the background (mountains) but left the foreground (rocks and walkway) as is.