Insects captured in flight
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Kristalldetektor (Kernstück eines Radios der Anfangszeit), hergestellt von meinem Urgrossvater in den 1920er Jahren. Der Kristalldetektor ist eine frühe Form einer Schotky-Diode und diente zur Demodulation des empfangenen Signals. (Eine Aufsicht ist hier: www.flickr.com/gp/165543166@N06/H8j298)
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Crystal detector (core of a radio of the early days), made by my great-grandfather in the 1920s. The crystal detector is an early form of a Schotky diode and was used to demodulate the received signal. (A top view is here: www.flickr.com/gp/165543166@N06/H8j298)
Kristalldetektor (Kernstück eines Radios der Anfangszeit), hergestellt von meinem Urgrossvater in den 1920er Jahren. Der namensgebende Kristall (Bleiglanz) ist eingefasst in der linken der beiden gerändelten Scheiben sichtbar und wird über ein Federblech mit einer Spitze kontaktiert. Der Kristalldetektor ist eine frühe Form einer Schotky-Diode und diente zur Demodulation des empfangenen Signals. (Eine Seitenansicht findet sich hier: flic.kr/p/2ic9A5Y)
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Crystal detector (core of a radio of the early days), made by my great-grandfather in the 1920s. The name-giving crystal (galena) is embedded in the left of the two knurled discs and is contacted by a spring plate with a tip. The crystal detector is an early form of a Schotky diode and was used to demodulate the received signal. (A side view is here: flic.kr/p/2ic9A5Y)
Vom Urgrossvater des Sekretärs hergestelleter Kristalldetektor. Der Kristalldetektor bildete das zentrale Element von frühen Radios, sogenannten Detektorradios oder Detektorempfängern.
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Crystal detector, hand-made by Secretary's great-grandfather. The crystal detector was the core element of early radios, so-called crystal radio receivers or crystal sets.
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Auf der Brücke der «Cap San Diego». Die «Cap San Diego» ist ein nach wie vor seetüchtiges Museumsschiff (Baujahr 1961) und hat seinen Liegeplatz an der Überseebrücke des Hamburger Hafens.
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At the bridge of the "Cap San Diego". The "Cap San Diego" is a still seaworthy museum ship (built in 1961) and is moored at the Overseas Bridge (in German: "Überseebrücke") at the Port of Hamburg.
Metro. Lisboa
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1st August 2019:
Summer came back and I went out for a lovely walk. I was heading for a particular place, but didn't get there, lost my orientation. Will have to try and find where I wanted to go another time.
As I'd 'got lost' I just ambled around taking photos, chatting to home owners who said "Bonjour" and enjoying the good weather.
Saw this and liked it, but, as it was a bit breezy, it kept moving round. Out of the 3 photos I managed, I thought this was the most fun.
They tell you which direction and at what speed the wind is coming from - I think!
Better viewed large and thank you for your favourites. :O)
The Waynesburg Southern branch of the Monongahela Railway, opened in 1968, did not have stations or lineside structures normally associated with lines of earlier vintages. It did have block limits set up at what would come to be known as control points along the way. Here a Conrail caboose on a northbound loaded train passes the dragging equipment detector at COT, in Pine Bank, Pennsylvania.
Pulling at Gladstone, CN 5404 passes the ancient detector at Gladstone. From what I can find, there's only one other existing example of this style of detector, which would read out the axles for the rear-end crew.
CN 5770 & CN 8927 lead a 512-axle CN 377 past the hotbox and dragging equipment detectors located at MP 29.2 of the Kingston Sub.
A wary Green Jay considers the danger of my presence near a feeding station at Sabal Palm Sanctuary outside Brownsville, Texas.
W&LE 6383, 6981, and 4003 lead a 99-car long 214 east by the MPK142.6 defect detector northwest of Bolivar on 2/26/16. I had a good run, but the clouds wouldn't agree with me today.
On my way to Dundee a road closure due to a fire at a landfill site diverted me down a minor road to Ladybank. Although it wasn't on my agenda for the drive I decided to call in at the station which is the junction where lines split heading for either Perth or Dundee.
With the smoke from the fire as a backdrop 158721 and 158727 arrived with the 1L84 1621 Perth to Edinburgh service.
At the time of posting this picture (a full week later) the fire is apparently still going.
12th May 2026.
This fly is sticking his tongue into some pancake syrup. For those that like proper names here is a clip below.
"A fly's "tongue" is called a proboscis. This is a straw-like appendage used to suck up food. Flies can only consume liquids, so they often spit on solid foods to dissolve them with enzymes and acids before sucking them up with their proboscis."
I have been testing out a new flash and it is working quite nicely. Godox V480 Flash.
Metro. Lisboa.
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Just playing around with the dashboard of the 2006 Infiniti G35 Coupe. Another of my Escher (or Droste) type photo manipulations. [see the first in the set for more info].
©2008 David C. Pearson, M.D.
Don't we all wish that the light will stay just that little longer? It never seems to be enough.
You see the colors start to build, and before you know it, it's gone... If only it was possible to stop time just at that moment.. Lousy PP here, cos im kinda tired.. Maybe I'll re-work this when I get a chance.. =P Didn't realise that the halo was THAT obvious, and that was after flattening layers and doing lots of other stuff. cmd-opt-Z wasn't gonna cut it.. Forgive this tardy piece please..
This picture is here because...
I'll remember this image for the longest time. Not because it's such a beautiful place to be at, but because my F***KING stove blew up and painted the kitchen with curry chicken while i was processing this shot!!!! Scared the holy F*** outta me when the smoke detectors went off in unison.
Not too sure what happened, but when I went out to see what was up, I saw my roomie standing there with a bewildered look on his face, and learnt that the stove had kinda melted. DAMN! What's up with that?!?!?
The face of a hammerhead is a piece of incredible, primitive, engineering. Perfect for scanning for living creatures buried beneath the sand.
Who knows what that thing is really picking up?
This is a quick little build that I mostly completed in an evening, with some tweaks later as Bricklink orders arrived.
Fun fact: I only have two of those skulls, and one is on the ground in the cave. I had to take three photos and merge them to get the skull faces on all the legs. More will be here from Bricklink eventually...
Mile Post 1165. No Defects, Repeat no Defects, Total Axle Count 4-8-4, Detector Out. Was a noise we all became well acquainted with whilst chasing trains around the BNSF.
BNSF loaded crude oil from Tioga, ND to Ferndale, WA (Phillips 66 Refinery).
3821-7308-5794(r)-5471(r) BNSF U TIOFEP0 04 West Java 28-4-25
en.wikipedia.org/wiki/Tower_Bridge
Tower Bridge is a combined bascule and suspension bridge in London, England, over the River Thames. It is close to the Tower of London, which gives it its name.Name[›] It has become an iconic symbol of London.
The bridge consists of two towers which are tied together at the upper level by means of two horizontal walkways which are designed to withstand the horizontal forces exerted by the suspended sections of the bridge on the land-ward sides of the towers. The vertical component of the forces in the suspended sections and the vertical reactions of the two walkways are carried by the two robust towers. The bascule pivots and operating machinery are housed in the base of each tower. Its present colour dates from 1977 when it was painted red, white and blue for the Queen's Silver Jubilee. Originally it was painted a chocolate brown colour.[1]
Tower Bridge is sometimes mistakenly referred to as London Bridge, which is actually the next bridge upstream.[2] A popular urban legend is that in 1968, Robert McCulloch, the purchaser of the old London Bridge that was later shipped to Lake Havasu City, Arizona, believed that he was in fact buying Tower Bridge. This was denied by McCulloch himself and has been debunked by Ivan Luckin, the seller of the bridge.[3]
The nearest London Underground station is Tower Hill on the Circle and District Lines.
The nearest Docklands Light Railway station is Tower Gateway.
In the second half of the 19th century, increased commercial development in the East End of London led to a requirement for a new river crossing downstream of London Bridge. A traditional fixed bridge could not be built because it would cut off access to the port facilities in the Pool of London, between London Bridge and the Tower of London.
A Special Bridge or Subway Committee was formed in 1876, chaired by Sir Albert Joseph Altman, to find a solution to the river crossing problem. It opened the design of the crossing to public competition. Over 50 designs were submitted, including one from civil engineer Sir Joseph Bazalgette. The evaluation of the designs was surrounded by controversy, and it was not until 1884 that a design submitted by Horace Jones, the City Architect (who was also one of the judges),[4] was approved.
Jones' engineer, Sir John Wolfe Barry, devised the idea of a bascule bridge with two towers built on piers. The central span was split into two equal bascules or leaves, which could be raised to allow river traffic to pass. The two side-spans were suspension bridges, with the suspension rods anchored both at the abutments and through rods contained within the bridge's upper walkways.
Construction started in 1886 and took eight years with five major contractors – Sir John Jackson (foundations), Baron Armstrong (hydraulics), William Webster, Sir H.H. Bartlett, and Sir William Arrol & Co.[5] – and employed 432 construction workers. E W Crutwell was the resident engineer for the construction.[6]
Two massive piers, containing over 70,000 tons of concrete,[4] were sunk into the riverbed to support the construction. Over 11,000 tons of steel provided the framework for the towers and walkways.[4] This was then clad in Cornish granite and Portland stone, both to protect the underlying steelwork and to give the bridge a pleasing appearance.
Jones died in 1887 and George D. Stevenson took over the project.[4] Stevenson replaced Jones' original brick facade with the more ornate Victorian Gothic style, which makes the bridge a distinctive landmark, and was intended to harmonise the bridge with the nearby Tower of London.[6] The total cost of construction was £1,184,000.[6]
The bridge was officially opened on 30 June 1894 by The Prince of Wales (the future King Edward VII), and his wife, The Princess of Wales (Alexandra of Denmark).[7]
The bridge connected Iron Gate, on the north bank of the river, with Horsleydown Lane, on the south – now known as Tower Bridge Approach and Tower Bridge Road, respectively.[6] Until the bridge was opened, the Tower Subway – 400 m to the west – was the shortest way to cross the river from Tower Hill to Tooley Street in Southwark. Opened in 1870, Tower Subway was the world's first underground ('tube') railway, but closed after just three months and was re-opened as a pedestrian foot tunnel. Once Tower Bridge was open, the majority of foot traffic transferred to using the bridge, there being no toll to pay to use it. Having lost most of its income, the tunnel was closed in 1898.[8]
Tower Bridge is one of five London bridges now owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation. It is the only one of the Trust's bridges not to connect the City of London to the Southwark bank, the northern landfall is in Tower Hamlets.
The bridge is 800 feet (244 m) in length with two towers each 213 feet (65 m) high, built on piers. The central span of 200 feet (61 m) between the towers is split into two equal bascules or leaves, which can be raised to an angle of 83 degrees to allow river traffic to pass. The bascules, weighing over 1,000 tons each, are counterbalanced to minimize the force required and allow raising in five minutes.
The two side-spans are suspension bridges, each 270 feet (82 m) long, with the suspension rods anchored both at the abutments and through rods contained within the bridge's upper walkways. The pedestrian walkways are 143 feet (44 m) above the river at high tide.[6]
The original raising mechanism was powered by pressurised water stored in several hydraulic accumulators.Hydraulics[›][clarification needed]
The system was designed and installed by Sir W. G. Armstrong Mitchell & Company of Newcastle upon Tyne. Water, at a pressure of 750 psi, was pumped into the accumulators by two 360 hp stationary steam engines, each driving a force pump from its piston tail rod. The accumulators each comprise a 20-inch ram on which sits a very heavy weight to maintain the desired pressure.
In 1974, the original operating mechanism was largely replaced by a new electro-hydraulic drive system, designed by BHA Cromwell House. The only components of the original system still in use are the final pinions, which engage with the racks fitted to the bascules. These are driven by modern hydraulic motors and gearing, using oil rather than water as the hydraulic fluid.[9]
Some of the original hydraulic machinery has been retained, although it is no longer in use. It is open to the public and forms the basis for the bridge's museum, which resides in the old engine rooms on the south side of the bridge. The museum includes the steam engines, two of the accumulators and one of the hydraulic engines that moved the bascules, along with other related artefacts.
During World War II, as a precaution against the existing engines being damaged by enemy action, a third engine was installed in 1942:[10] a 150 hp horizontal cross-compound engine, built by Vickers Armstrong Ltd. at their Elswick works in Newcastle upon Tyne. It was fitted with a flywheel having a 9-foot diameter and weighing 9 tons, and was governed to a speed of 30 rpm.
The engine became redundant when the rest of the system was modernised in 1974, and was donated to the Forncett Industrial Steam Museum by the Corporation of the City of London.
To control the passage of river traffic through the bridge, a number of different rules and signals were employed. Daytime control was provided by red semaphore signals, mounted on small control cabins on either end of both bridge piers. At night, coloured lights were used, in either direction, on both piers: two red lights to show that the bridge was closed, and two green to show that it was open. In foggy weather, a gong was sounded as well.[6]
Vessels passing through the bridge had to display signals too: by day, a black ball at least 2 feet (0.61 m) in diameter was to be mounted high up where it could be seen; by night, two red lights in the same position. Foggy weather required repeated blasts from the ship's steam whistle.[6]
If a black ball was suspended from the middle of each walkway (or a red light at night) this indicated that the bridge could not be opened. These signals were repeated about 1,000 yards (910 m) downstream, at Cherry Garden Pier, where boats needing to pass through the bridge had to hoist their signals/lights and sound their horn, as appropriate, to alert the Bridge Master.[6]
Some of the control mechanism for the signalling equipment has been preserved and may be seen working in the bridge's museum.
Although the bridge is an undoubted landmark, professional commentators in the early 20th century were critical of its aesthetics. "It represents the vice of tawdriness and pretentiousness, and of falsification of the actual facts of the structure", wrote H. H. Statham,[11] while Frank Brangwyn stated that "A more absurd structure than the Tower Bridge was never thrown across a strategic river".[12]
Architectural historian Dan Cruickshank selected the bridge as one of his four choices for the 2002 BBC television documentary series Britain's Best Buildings.[13]
Tower Bridge is still a busy and vital crossing of the Thames: it is crossed by over 40,000 people (motorists and pedestrians) every day.[14] The bridge is on the London Inner Ring Road, and is on the eastern boundary of the London congestion charge zone. (Drivers do not incur a charge by crossing the bridge.)
In order to maintain the integrity of the historic structure, the City of London Corporation have imposed a 20 miles per hour (32 km/h) speed restriction, and an 18-tonne weight limit on vehicles using the bridge. A sophisticated camera system measures the speed of traffic crossing the bridge, utilising a number plate recognition system to send fixed penalty charges to speeding drivers.[citation needed]
A second system monitors other vehicle parameters. Induction loops and piezoelectric detectors are used to measure the weight, the height of the chassis above ground level, and the number of axles for each vehicle.[citation needed]
River traffic
The bascules are raised around 1000 times a year.[15] River traffic is now much reduced, but it still takes priority over road traffic. Today, 24 hours' notice is required before opening the bridge. In 2008, a local web developer created a Twitter feed to post live updates of the bridge's opening and closing activities.[16]
A computer system was installed in 2000 to control the raising and lowering of the bascules remotely. Unfortunately it proved less reliable than desired, resulting in the bridge being stuck in the open or closed positions on several occasions during 2005, until its sensors were replaced.[14]
The high-level walkways between the towers gained an unpleasant reputation as a haunt for prostitutes and pickpockets and were closed in 1910. In 1982 they were reopened as part of the Tower Bridge Exhibition, an exhibition now housed in the bridge's twin towers, the high-level walkways and the Victorian engine rooms. The walkways boast stunning views of the River Thames and many famous London sites, serving as viewing galleries for over 380,000 tourists[citation needed] who visit each year. The exhibition also uses films, photos and interactives to explain why and how Tower Bridge was built. Visitors can access the original steam engines that once powered the bridge bascules, housed in a building close to the south end of the bridge.
In April 2008 it was announced that the bridge will undergo a 'facelift' costing £4m, and taking four years to complete. The work entails stripping off the existing paint and repainting in blue and white. Each section will be enshrouded in scaffolding to prevent the old paint from falling into the Thames and causing pollution. Starting in mid-2008, contractors will work on a quarter of the bridge at a time to minimise disruption, but some road closures are inevitable. The bridge will remain open until the end of 2010, but is then expected to be closed for several months. It is hoped that the completed work will stand for 25 years.[17]
The walkway section of the renovation was completed in mid 2009. Within the walkways a versatile new lighting system has been installed, designed by Eleni Shiarlis, for when the walkways are in use for exhibitions or functions. The new system provides for both feature and atmospheric lighting, the latter using bespoke RGB LED luminares, designed to be concealed within the bridge superstructure and fixed without the need for drilling (these requirements as a result of the bridge's Grade I status).[18]
In December 1952, the bridge opened while a number 78 double-decker bus (stock number RT 793) was on it. At that time, the gateman would ring a warning bell and close the gates when the bridge was clear before the watchman ordered the lift. The process failed while a relief watchman was on duty. The bus was near the edge of the south bascule when it started to rise; driver Albert Gunter made a split-second decision to accelerate the bus, clearing a three-foot drop on to the north bascule, which had not started to rise. There were no serious injuries.[19]
Main article: Hawker Hunter Tower Bridge incident
On 5 April 1968 a Hawker Hunter FGA.9 jet fighter from No.1 Squadron RAF, flown by Flt Lt Alan Pollock, flew under Tower Bridge. Unimpressed that senior staff were not going to celebrate the RAF's 50th birthday with a fly-past, Pollock decided to do something himself. Without authorisation, Pollock flew the Hunter at low level down the Thames, past the Houses of Parliament, and continued on to Tower Bridge. He flew the Hunter beneath the bridge's walkway, remarking afterwards it was an afterthought when he saw the bridge looming ahead of him. Pollock was placed under arrest upon landing, and discharged from the RAF on medical grounds without the chance to defend himself at a court martial.[20][21]
In May 1997,[22] the motorcade of United States President Bill Clinton was divided by the opening of the bridge. Thames sailing barge Gladys, on her way to a gathering at St Katharine Docks, arrived on schedule and the bridge was duly opened for her. Returning from a Thames-side lunch at Le Pont de la Tour restaurant, with UK Prime Minister Tony Blair, President Clinton was less punctual, and arrived just as the bridge was rising. The bridge opening split the motorcade in two, much to the consternation of security staff. A spokesman for Tower Bridge is quoted as saying, "We tried to contact the American Embassy, but they wouldn't answer the 'phone."[23]
On 19 August 1999, Jef Smith, a Freeman of the City of London, drove a "herd" of two sheep across the bridge. He was exercising an ancient permission, granted as a right to Freemen, to make a point about the powers of older citizens and the way in which their rights were being eroded.[24] However, this was a hollow gesture as the so-called right is to drive sheep across London Bridge into the City of London, and Tower Bridge does not have its northern landfall in the City.[citation needed]
Before dawn on 31 October 2003, David Crick, a Fathers 4 Justice campaigner, climbed a 120 ft (37 m) tower crane near Tower Bridge at the start of a six-day protest dressed as Spider-Man.[25] Fearing for his safety, and that of motorists should he fall, police cordoned off the area, closing the bridge and surrounding roads and causing widespread traffic congestion across the City and east London. The Metropolitan Police were later criticised for maintaining the closure for five days when this was not strictly necessary in the eyes of some citizens.[26][27]
On May 11, 2009, six persons were trapped and injured after a lift fell 10 ft inside the north tower.[28][29]
La Bocca della Verità (English: The Mouth of Truth) is an image, carved from Pavonazzo marble, of a man-like face, located in the portico of the church of Santa Maria in Cosmedin in Rome. The sculpture is thought to be part of a first century ancient Roman fountain, portraying one of several possible pagan gods, probably Oceanus. Most Romans believe that the 'Bocca' represents the ancient god of the river Tiber...The most famous characteristic of the Mouth, however, is its role as a lie detector. Starting from the Middle Ages, it was believed that if one told a lie with the hand in the mouth of the sculpture, it would be bitten off...This girl believes that this mouth can bite. She’s very afraid because she doesn’t remember did she tell the truth to her mother who smashed the vase to smithereens yesterday, she or the cat...
(60.00N, 30.00E)MCMLXXI
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What does not matter ?
1.What to photograph - Camera.
2.Where to photograph - Place.
3.When to photograph -Time.
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What is important ?
1.Study and tune the camera.
2.Learn where you are going.
3.Study the lighting at different times.
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What's the secret?♀️
1.Feel the instrument, hear what it says.
2.Feel the atmosphere of the place, catch the wave.
3.Switch on .Catch the moment!⚡️
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Make a choice!
✨Finding the observer, comes awareness!✨