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The Washington & Old Dominion Railroad Regional Park is a linear regional park in Northern Virginia. The park's primary feature is the 45 mile Washington & Old Dominion Railroad Trail, an asphalt-surfaced paved rail trail that runs through densely populated urban and suburban communities as well as through rural areas. Most of the trail travels on top of the rail bed of the former Washington and Old Dominion Railroad, which closed in 1968.
History of the Trail
The 100-foot wide Washington and Old Dominion Railroad Regional Park (W&OD) is one of the skinniest parks in the commonwealth of Virginia, but also one of the longest — 45 miles in length. The W&OD takes its name from the railroad whose trains ran along the right-of-way from 1859 until 1968. The entrepreneurs who founded the rail line dreamed of bringing coal and other riches from the Appalachians to the Port of Alexandria, but those dreams were never fully realized. Less than a decade after it was built, the railroad was almost destroyed during the Civil War.
After the war, the railroad was slowly rebuilt and then saw a series of changes of ownership and objectives. The heyday of the W&OD came early in the 20th Century, when it provided service three times daily from Alexandria to Falls Church, Leesburg and Purcellville, with stops at such hamlets as Dunn Loring, Hunter Station and Paeonian Springs.
When the W&OD ceased operations in 1968, the Virginia Electric and Power Company (VEPCO — later Virginia Power, and now Dominion Power) bought the right-of-way for its electric power transmission lines. The Northern Virginia Regional Park Authority tried for years to acquire the use of the railroad right-of-way. Agreement was finally reached in 1977 for NVRPA to purchase the right-of-way in stages. The purchase was completed in 1982.
The first segment of the W&OD Trail was opened in 1974 within the City of Falls Church. This portion was built as the result of a special agreement with VEPCO under which the Regional Park Authority was allowed to judge whether a trail of this sort would prove to be popular. It did, and so, after the property was purchased, the trail was built in sections until its completion to Purcellville in 1988. Trail users today may enjoy 45 miles of asphalt trail and 32.5 miles of crushed stone and dirt bridle paths. In 1987, the W&OD was designated a National Recreation Trail by the U.S. Department of the Interior.
Part of my exhibition at the convention
on the left: compound of two cubes.
The diagram of it is in this year's convention book.
on the right: I'm not sure if "twisted tetrahedron" is the right name for one of the three polyhedra. I take a tetrahedron, cut in half, twist one of them and again put them together.
It is possible to weave three of the solids like the umulius rectangulum.
3*12=36 units, 4 different modules, copy paper
Part of my exhibition at the convention
12 pointed star.
In parts it looks similar to the 6 pointed "Schee Star" by Carmen Sprung. It is made differently by stacking two hexatriangle twist and then pulling out some paper.
Grid: 1:10
wrapping kraft paper
OD 7487. DR210. Devon General 1934 AEC Regent/Short at Timberscombe and Minehead station during 2019 Minehead vintage bus day. The first diesel engine buses in the fleet and were bought for Torquay tram replacement. 6 were rebuilt as open-top in 1955 by Longwell Green, Bristol. Her age is belied by good performance. Ran until 1961 when replaced by 'Seadog' convertible Atlanteans.
At the convention we had a special table with all the models which are in the convention book.
Here is my small contribution. (The 5 Octahedra was the biggest model on that table. I didn't had the time to make a smaller one. If you follow my given paper sizes then you get this size.)
Folder: Dirk Eisner
5 Octahedra:
Designer of the modules: Dirk Eisner, Francis Ow, Tomoko Fuse
120 modules
copy paper
Designer of the modules: Dirk Eisner
72 units
Uit de privé collectie van de heer Frans Siemerink - From the private collection of Mr. Frans Siemerink.
Deze foto is onderdeel van een serie. Klik hieronder voor de hele serie:
This picture is part of a series. Click here for the entire series:
www.flickr.com/photos/10989519@N06/sets/72157624820988111/
Helaas weet ik zelf ook niet wat de functie van dit apparaat is. Misschien kom ik er nog eens achter. Wie het weet mag het zeggen!
I'm not sure what it is. Who knows it?
Part of my exhibition at the convention
I have given a workshop of this very nice compound of five tetrahedra by Thomas Hull and the units by Francis Ow.
I have shown the assembling via the compound of four triangles.
The compound of five tetrehedra is chiral. Here you see both forms.
30 units
Kami
Another kind of Polypolyhedron.
Compound of 4 Stella Octangula or 4x 2 Tetrahedra.
4x 24 units
copy paper
Saw this OD green bus and jeep with carved wolf as we were leaving Snoqualmie.
Olympus Pen-F
Panasonic 7-14mm
Minehead on Saturday 17-07-21 sees Devon General OD 7497 working a West Somerset Railway link service.
OD 7487. DR210. Devon General 1934 AEC Regent/Short at Timberscombe and Minehead station during 2019 Minehead vintage bus day. The first diesel engine buses in the fleet and were bought for Torquay tram replacement. 6 were rebuilt as open-top in 1955 by Longwell Green, Bristol. Her age is belied by good performance. Ran until 1961 when replaced by 'Seadog' convertible Atlanteans.
TMA Cargo
Airbus A300F4-622R, c/n 872
Ex-N140MN, JA02GX, F-WWAL. Later again N140MN and D-AZMO (DHL)
Helsinki/Vantaa (HEL/EFHK) 11.7.2011
Here are some Square Cross Quilts. I made two more for the display.
At the lower left you can see the backside variation in black and white.
During the car drive (I was not the driver !!) to the convention I just finished the folding of the
chess figures. It is the Birdbase Chess Set by Joseph Wu. They are made with the same square size (7.5 cm x 7.5 cm) as the modules of the chess board.