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Engineering studies concerning foreground bokeh
photographed with
Voigtländer Color-Heliar 75mm F2.5 SL @f/2.5 @IR-Cut Filter @Sony NEX-7 modif. removed Sensor-AA-Filterstack @RAW Power (iOS), raw data entry sharpening, raw contrast and more ... apart from that, no photo retouching …
at Fürth, Germany
2024-10-DSC1743
This magnificent bridge opened to the public of Aberdeen in 1830, I've admired it for many years,I finally captured some images to post on Flickr , please find below a brief history on this breathtaking piece of engineering .
The Wellington Suspension Bridge (also known as the Chain Bridge and Craiglug Bridge) is a suspension bridge crossing the River Dee from Ferryhill to Craiglug in Aberdeen, north east Scotland.
Designed by Captain Samuel Brown and the Aberdeen City Architect John Smith, it was opened to pedestrians in November 1830 and to traffic in May 1831. Closed in 1984 to vehicles and then pedestrians in 2002, it was restored in 2006/07 and pedestrian use was re-instated in 2008.
History
Aberdeen was undergoing rapid expansion in the early 19th century and landowners in Torry, the Menzies family of Pitfodels, wished to capitalise on the opportunities arising from the establishment of the turnpike road between Aberdeen and Stonehaven in 1799. A series of legal disputes as to exact ownership of the lands ended in arbitration.
An Act of Parliament was eventually obtained by the Heritors of Nigg and the Road Trustees in 1828 for a bridge to replace the Craiglug Ferry.
The City Architect in Aberdeen John Smith and his rival Archibald Simpson were asked to tender design proposals for the bridge and its approach roads from the north and south side in June 1829.
The design for the architectural sections was awarded to Smith working in collaboration with Captain Samuel Brown who undertook the engineering designs of the suspension and span.
The metalwork was manufactured at the nearby Ferryhill Foundry owned by James Abernethy (1809–1879), a cousin of James Abernethy.
Abernethy was the engineer who supervised the work.
In March 1830 the trustees chose to name the bridge after the Iron Duke, Wellington,[6] although it is also known as the Chain Bridge[7] and the Craiglug Bridge.[8] The foundation stone was put in place in 1829 and the bridge was in pedestrian use from November 1830. Six months later, in May 1831, it was opened to use by vehicles.
The costs of building the bridge totalled £10,000.
Construction
Pairs of bar-link saddle chains one above another with suspender rods hold the deck, which is 220 feet (67 m) in length and 22 feet (6.7 m) wide.
Thomas Telford's method of "three lines of rectangular cross-section eye-bar links with short connecting links and cross-bolted" was copied from his 1822 Menai Suspension Bridge construction. The chains were installed on either side of the deck, one above the other with a dip of 18 feet (5.5 m), giving a span ratio of 1:12. James Slight described the bridge as "the strongest bridge that Capt. Brown has yet erected"[10] and he assessed the highest chain stress was around "812 tons sq. in. and all the bars were proved to 9 tons sq. in."[10] The chains bear the stamp "Cable TF&S" and were obtained from Thomson, Forman and Son, of Pontypridd.
The chains are anchored at each end to twin pylons with semi-circular archways; these were constructed from bull-faced granite by Robert Mearns. Modifications were made to the north end archway in 1886 and a stone engraved with the date is mounted at the apex of the arch to signify this.
The approach roads, designed by Smith with the bridge, were 3 miles (4.8 km) in length and incorporated a slow ramp from College Street on the northern side; a new road also ran from around Nigg to the Craiglug side on the south approach.
An octagonal toll house, also designed by Smith, was originally sited on the northwest corner of the bridge.
Restoration
The bridge underwent some restoration work in 1930 when steel replaced the cast iron bearers and wrought iron suspenders.
Of the original iron work, only the main chains remained.
The toll house was derelict in 1964 and was demolished soon after.
Further restoration work was done on the bridge in 1984 after a replacement bridge, the Queen Elizabeth II bridge,was finished, as this enabled the suspension bridge to be closed to vehicles.
Due to safety concerns, in 2002 it was also closed to pedestrians.
After Aberdeen City Council engineers undertook further work to preserve and strengthen the bridge, it resumed use as a pedestrian walkway and cycle lane in 2008.
The main chains were still retained. The work was carried out in four phases. The first step comprised repairing welding of the main chains and saddle chain replacement.
The next stage involved renewing the timber decking and structural re-painting. Phase three concentrated on the granite towers and included re-pointing and cleaning; the final stage was to provide architectural lighting. Total costs were estimated at £760,000 and were expected to preserve the bridge for another century.
Aberdeen City councillors were informed in October 2007 that the cost for the first three phases had increased to £995,000 and the estimate for the final stage would be £100,000.
From 1979 until 2010 it was listed as a scheduled monument; from 2010, it was included on the list of Category A listed structures.
The Google Engineering Philosophy
1. All developers work out of a ~single source depot; shared infrastructure!
2. A developer can fix bugs anywhere in the source tree.
3. Building a product takes 3 commands ("get, config, make")
4. Uniform coding style guidelines across company
5. Code reviews mandatory for all checkins
6. Pervasive unit testing, written by developers
7. Unit tests run continuously, email sent on failure
8. Powerful tools, shared company-wide
9. Rapid project cycles; developers change projects often; 20% time
10. Peer-driven review process; flat management structure
11. Transparency into projects, code, process, ideas, etc.
12. Dozens of offices around world => hire best people regardless of location
See my entry on Always Be Coding for more information.
Promotional thing from ICI.
I remember ICI used to be the archetypal Big, Scary Industrial Giant. Haven't heard anything of them for years. Do they even still exist?
614I 0830 Lichfield Tv C E Sidings to Severn Tunnel Junction ,passes by with some workers filming on the I Phone in the back.
This is where I study. The Electrical Engineering Department of College of Electrical and Mechanical Engineering, NUST.
Verify out these machining engineering photos:
Image from web page 492 of “Railway and locomotive engineering : a sensible journal of railway motive energy and rolling stock” (1901)
Image by Internet Archive Book Photos
Identifier: railwaylocomotiv18newy
Title: Railway and...
Read more about Nice Machining Engineering photographs
(Source from Chinese Rapid Prototyping Blog)
Redneck Engineering, out of Liberty S. Carolina. this is a sportster/Buell. Gives me some Ideas.
redneckengineering.com
The Clyde Engineering builders plate sits proudly on the short hood of 1204 ) above a slightly worn "Zero Injuries" decal.
Formerly known as A1514 and financed by Western Mining Corporation for the West Australian Government Railway to haul ore trains, this was one of three A Class fitted with dynamic brakes. A1514 was built by Clyde Engineering at Granville in NSW and is presently owned by Genesee & Wyoming Australia (along with sister unit 1203/A1513) for narrow gauge grain haulage out of Port Lincoln.
With the closure of the grain lines from Port Lincoln in mid 2019, the future of 1204 is presently unknown.
Western Engineering welcomed more than 50 alumni and friends back to campus on Sept. 26 as part of Western University's Homecoming weekend.
This year's annual open house was held in the Claudette MacKay-Lassonde Pavilion.
Photos by Allison Stevenson, Western Engineering
Archimedes Plaza, at the heart of the USC Viterbi School of Engineering
Photo by JaNelle Weatherford
My solution to the Reverse-Engineering Contest IV Week 7 Followup D challenge
www.flickr.com/photos/ltdemartinet/16887073874/
See my blog at www.brickpile.com
To study engineering in a building such as this is an inspiration.
This image was taken with a Pentax 6 X 7 medium format film camera with a Super Multi-Coated Takumar/6X7 1:3.5/55mm lens using Kodak Ektar 100 film, scanned by an Epson Perfection V600 and digitally rendered with Photoshop.
Haskoning Delft Office
In 2025, Haskoning relocated to the former Mining Engineering Faculty on the campus of Delft University of Technology. 1,000 employees from The Hague and Rotterdam will find their new workplace here, as well as the Board of the company. Situated on the border between the city and the TU Delft campus, the new head office connects to Delft's ecosystem of knowledge, innovation, and technology. The national monument has been transformed into a contemporary, sustainable workplace – Paris-proof. The original courtyards have been transformed into bright atriums: the spatial heart of the building and anchor points in the daily dynamics. With this, Haskoning demonstrates the role heritage can play in the debate about the future of the built environment. The project was developed in co-creation between engineers and architects from Haskoning and Braaksma & Roos. Interior design by Fokkema & Partners.
The Mining Engineering Faculty, designed in 1912 by Johannes Vrijman, is characterized by a functional layout and technical soundness, resulting in a vibrant and eclectic Neo-Renaissance building. The focus is on the center of the main wing, where the main entrance was located. From the main entrance, corridors run around the two open spaces, which provide abundant natural light, good ventilation through the windows, and excellent orientation within the complex. Inside, the finishes of the teaching spaces and laboratories were kept simple. However, color research revealed decorative, colorful painted finishes and oak paneling.
To meet Haskoning's desire to create a modern, inspiring environment with ample work and meeting space for all employees, the two courtyards were roofed, transforming them into usable atriums. Due to the irregular shape of the roofs, the solution was a single, large, spacious canopy at the attic level, separate from the building, with light and a view of the walls and roofs. The existing structure offered many opportunities for incorporating a suitable workspace program. The old laboratories were designed as open workspaces, while private rooms served as quiet workspaces. Characteristic spaces, such as the lecture hall, have been preserved, restored, and put back into use. Initially, the building had an energy label G. After the renovation, it achieved an A++++ rating. "This was achieved with roof and floor insulation, vacuum glazing, and smart building services. The building is now Paris-proof with a maximum annual energy consumption of 70 kWh/m².
Such a long way down. This was the view from the Hoover Dam looking out to the new bridge.
Voiceb©x
view (L)arge
TYNDALL AIR FORCE BASE, Fla., April 15, 2014. - U.S. Air Force Senior Airman Axel Fiksman, right, 116th Civil Engineering Squadron (CES), Robins Air Force Base (AFB), Ga., Georgia Air National Guard, uses a circular saw to cut an even edge on a portion of a wall frame while Senior Airman Daniel Tift, 143rd CES, Quonset National Guard Base, R.I., and Staff Sgt. Joe Wells, 433rd CES, Lackland AFB, Texas, help to steady the boards during Silver Flag training.
During the weeklong course, Guardsmen from the 116th CES and more than 30 other U.S. Air Force and Air National Guard units trained on building and maintaining bare-base operations at a forward-deployed location. In addition, they honed their combat and survival skills and repaired simulated bomb-damaged runways, set up base facilities and established various critical base operating support capabilities. More than 30 Airmen from the 116th CES attended the exercise that consisted of extensive classroom and hands-on training culminating in an evaluation of learned skills on the last day of class.
(Georgia Air National Guard photo by Master Sgt. Roger Parsons/Released)