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The Algoma Compass arrived in port early yesterday morning. She brought with her a load of cement to be used for construction. Sometimes she will deliver road salt. It is always amazing to walk beside such a large vessel and wonder at how it stays afloat. When you look at her hull, there are stories to tell in the scratches, scrapes and rust patches.
Glow-in-the dark items store and radiate visible light. They radiate even more light if hit by ultraviolet. I hung this compass by a thread and "charged" it up using a UV flashlight.
Side note, most fluorescent bulbs and even some LED lights emit visible white light by starting with an ultraviolet source such as the ionized gas in the fluorescent bulb which then strikes a phosphor surface causing it to glow white.
The history of a magnetic compass to find direction dates back to the Han Dynasty in China (206 BC - AD 220). Initially the use of magnetic lodestones allowed the practice of Feng Shui to determine the most propitious orientation for buildings and gardens.
The first compass of the type we see above, with the magnetised needle, appeared in China during the 11th century. This allowed for portability and it became an enormous boon to Chinese sailors.
The story of this replica (from the 18th century I believe) is that it was carried by the first group of Chinese miners who arrived at the Victorian goldfields in Ararat around 1850. Their story is truly remarkable and the use of this type of compass proved invaluable. They sailed into Robe, South Australia (since they were unable to dock in Victoria - Port Phillip), and then set off on a long march, with compasses in hand, to the newly discovered goldfields. The nearest destination was Ararat over 300 kilometres away.
en.wikipedia.org/wiki/History_of_the_compass
www.ararat.vic.gov.au/facilities/gum-san-chinese-heritage...
Engineer/lensatic compass : alternate view of Macro Mondays Measurement subject for 24 September 2018,
This shows a sunrise at Compass Pond next to the Golden Road near Mount Katahdin and Baxter State Park in Maine USA. Please also visit: www.acadiamagic.com/.
NOTE: All images are Copyrighted by Greg A. Hartford. No rights to use are given or implied to the viewer. All rights of ownership and use remain with the copyright owner.
Macro Mondays - Rule
A compass is a technical drawing instrument that can be used for inscribing circles or arcs. As dividers, they can also be used as tools to measure distances, in particular on maps. Compasses can be used for mathematics, drafting, navigation, and other purposes. (Wikipedia)
The symbol of the architect, this one being 9 meter tall.
Artist: Maurice Mentjens (2015).
Cuypershuis, Roermond, The Netherlands.
The first light of dawn stretches across Compass Pond and sets the trees aglow with golden light. This was in Northern Maine during October. (image 34A8681) Please also visit: acadiamagic.com. #autumn #maine #landscape
NOTE: All images are Copyrighted by Greg A. Hartford. No rights to use are given or implied to the viewer. All rights of ownership and use remain with the copyright owner.
Not usually an engineer's item, but I saw it, saw the price ($21) and had to have it. I might take off the top and repaint the face of the compass... we shall see.
Photographed in the Thompson Prairie area of Upper Hixon Forest on the La Crosse Ridge, La Crosse County, Wisconsin.
This shows a sunrise over Compass Pond next to the Golden Road in Northern Maine. (image 34A2391) Please also visit: acadiamagic.com.
NOTE: All images are Copyrighted by Greg A. Hartford. No rights to use are given or implied to the viewer. All rights of ownership and use remain with the copyright owner.
Going retro with this shot. This is my first compass. It's an official BSA Silva Pathfinder compass I got when I was a Cub Scout about 1958. The Mineral King quad topographic map shown here is not quite as old. It was printed in 1973, but it is based on 1955 aerial surveys and 1956 field checking of the region.
Macro Monday – theme: Perfect Match
Canon FD lens adapted via Metabones
South Pond, Lincoln Park - Chicago, IL
July 2021
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Massive looking ornament of weathered stone of 25 cm or almost 10 inches on the monument of Columbus in Barcelona. There are a lot of them placed vertically around the column. By my Point of View it appears more to be laying down.
Walking the black hiking trail in Marstrand, on the west coast in Sweden, you will find this painted compass by Carl-Michael Ström.
I've always enjoyed finding Compass Plants and marveling at their height. Reaching up to 10 feet, they tower over other prairie plants. It's even better when you find one standing tall and straight as they tend to arch over from their own weight. Silphium laciniatum is native to MN. Olmsted County, MN 08/29/20
Those with a drone in their photography arsenal know about the 'compass calibration' that's often times required before flying. Some extra time to set up for a shot is required with a drone vs a standard DSLR camera. The compass calibration nearly hung me on this one with the first attempt failing. Being down to the wire when the second compass calibration was successful, there were only seconds remaining to fly over and position the drone for this single shot.
Slicing thru the recently harvested fields within the Minnesota River valley, a westbound ballast train is nearing New Ulm MN on CP's Tracy Sub. Some Herzog personnel were on hand to assist in dumping, which would be around the Sleepy Eye area after sunset.
Pusula
Naval Museum, Beşiktaş District, Istanbul, TR
SUGRAPHIC ~ Always Under The Light of Your Love ...
Sanatın Ustaları ~ Masters of Art ~ One 1stanbul Photo Album - Candidate Photos
ISTANBUL 2024 Summer Olympics and Paralympics for Peace on Earth..
DÜNYADA BARIŞ için ISTANBUL 2024 Yaz Olimpiyatları ve Paralimpiksleri..!
This shows a very foggy Compass Pond shortly after sunrise next to the Golden Road in Northern Maine. (image 34A2700) Please also visit: acadiamagic.com.
NOTE: All images are Copyrighted by Greg A. Hartford. No rights to use are given or implied to the viewer. All rights of ownership and use remain with the copyright owner.
At L'Arche Museum; St. Pierre; St. Pierre and Miquelon; Overseas Collectivity of the Republic of France.
This is an August sunrise at Compass Pond in Northern Maine next to what is called the Golden Road in Piscataquis County. (image 34A2371) Please also visit: acadiamagic.com.
NOTE: All images are Copyrighted by Greg A. Hartford. No rights to use are given or implied to the viewer. All rights of ownership and use remain with the copyright owner.
One of three Enviro200 that Compass Travel have to work the local route 7 in Worthing on behalf of Stagecoach