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In the control room
From the Behind-the-Scenes Tour around Tower Bridge: Towers, high-level Walkways and Victorian Engine Rooms down to its hidden depths, normally out of bounds to the public...views from the Glass Floor and high-level Walkway, then the original steam engines, accumulators and boilers in the Victorian Engine Rooms...the Bridge’s operational areas including the Control Cabin, Machinery Room and the immense Bascule Chambers, which house the 422-ton counterweights.
Built between 1886 and 1894, the Bridge has spent more than a century as London's defining landmark, an icon of London and the United Kingdom.
A huge challenge faced the City of London Corporation - how to build a bridge downstream from London Bridge without disrupting river traffic activities. To generate ideas, the Special Bridge or Subway Committee was formed in 1876, and a public competition was launched to find a design for the new crossing.
Over 50 designs were submitted to the Committee for consideration, some of which are on display at Tower Bridge. It wasn't until October 1884 however, that Sir Horace Jones, the City Architect, in collaboration with John Wolfe Barry, offered the chosen design for Tower Bridge as a solution.
It took eight years, five major contractors and the relentless labour of 432 construction workers each day to build Tower Bridge under the watchful eye of Sir John Wolfe Barry.
Two massive piers were built on foundations sunk into the riverbed to support the construction, and over 11,000 tons of steel provided the framework for the Towers and Walkways. This framework was clad in Cornish Granite and Portland Stone to protect the underlying steelwork and to give the Bridge a more pleasing appearance.
When it was built, Tower Bridge was the largest and most sophisticated bascule bridge ever completed ('bascule' comes from the French word for 'seesaw'). These bascules were operated by hydraulics, using steam to power the enormous pumping engines. The energy created was stored in six massive accumulators, meaning that as soon as power was required to lift the Bridge, it was always readily available. The accumulators fed the driving engines, which drove the bascules up and down. Despite the complexity of the system, the bascules only took about a minute to raise to their maximum angle of 86 degrees. Find out more about this process.
Today, the bascules are still operated by hydraulic power, but since 1976 they have been driven by oil and electricity rather than steam. The original pumping engines, accumulators and boilers are now on display within Tower Bridge’s Engine Rooms.
[TowerBridge.org.uk]
"Bakarah" is hebrew for controls...and also cattle
so this white board is filled with different kinds of "cattle"
fuzzy cattle
robust cattle
bang-bang (or bong bong) cattle
adaptive cattle
stochastic cattle
and a few others
I am delighted that I can now post some contemporary photographs. The conditions of my permits for South Bay kite aerial photography include a hiatus each year from the end of February to the start of September to avoid disturbing nesting birds. Thus, I eagerly await the start of fall and with it the chance to do some fieldwork.
On this occasion, I made a Saturday trip to the Eden Landing Ecological Reserve (ELER) near Hayward, California. I launched the kite from the west end of Salt Pond E13 and walked its northern perimeter to the Oliver Salt Works ruins. After hanging out at the new observation platform there, I then walked the levee separating E13 from E12. When I first started photographing at ELER this area was a dusty plain, the disused remnants of a former salt operation. Several years ago, as part of ELER’s Phase I Project, the restoration managers built a series of new levees and flow control structures so that the area could be tuned to serve as wildlife habitat. The levees created small sub-ponds, which have slightly different salinities and thus different colors.
After making my way down the levee to the pumphouse at the eastern end of the ponds, I paused to swap kites. The Sutton 30 I was using became painfully overpowered as the afternoon breeze freshened. Up went the Sutton 16, which was much more pleasant to handle and had ample lifting capacity. I then retraced my steps back up the levee and around Oliver Salt while shooting from a lower altitude. Altogether it was a pleasant day.
I am taking these documentary photographs under a Special Use Permit from the California Department of Fish & Wildlife. Kite flying is prohibited over the Eden Landing Ecological Reserve without a Special Use Permit.
Todos los días instalamos puntos de control a vehículos contaminantes, fortalecemos nuestra presencia buscando una mejor #CalidadDelAire para todos. 🙌🍃
Pilots grab the glory at this annual hot-air balloon event, but these assistants help make magic happen by getting the vessels safely off the ground
Part of the WWII defences around the Cromarty Firth. This controlled the explosive mines on the boom net protecting the anchorage.
The crazy porthole windows from the outside. I found them totally fascinating! Such an odd shape - an architect's whimsy? Or do they have a proper function?
Durban, South Africa
The control panel for the heater. The upper right says it's on automatic, the numbers under that ("5:36") are the time, and the bottom says P1 which indicates the strength, and 28 which indicates the temperature (in celsius).
A radio-controlled sailboat. The water is on a flooded football field that was created after an intense rain storm. We took advantage of the rare artificial lake and had some fun. The boat is turning around a garbage can that was blown in during the storm.
(untouched photo)
Reduce el uso de tu vehículo, transpórtate en bici o a pie para distancias cortas. Contamos con tu aporte para mejorar la #CalidadDelAire.
Realizamos controles en diferentes sectores de la ciudad.
These went home with someone else after a family gathering. :D
• The Dazzling Book Report by Jane O'Connor
• Giraffes Can't Dance by Giles Andreae
• Good Old Mom by Roderick Hunt
• Hello Grandma! by Leonie Bennett
• Sneezy the Snowman by Maureen Wright
• The Three Billy Goats Gruff by Violet Findley
• Yo! Yes? by Chris Raschka
But not well executed with 15mm fisheye. I wanted to get the lobster in the reflection of my buddy's domeport, but he didn't understand my intention.
Check out the wrongly set left flash on my rig. I really need to take care of that, because it can seriously damage a lot of photo's, when you don't check the scatter.