paragraph_text: India's first railway proposals were made in Madras in 1832. The Red Hill Railway, the country's first train, ran from Red Hills to Chintadripet bridge in Madras in 1837. It was hauled by a rotary steam - engine locomotive manufactured by William Avery. Built by Arthur Cotton, the railway was primarily used to transport granite stone for road - building work in Madras. In 1845, the Godavari Dam Construction Railway was built at Dowleswaram in Rajahmundry. Also built by Cotton, it supplied stone for the construction of a dam over the Godavari River.

paragraph_text: It is possible that around 62 million people died in the war; estimates vary greatly. About 60% of all casualties were civilians, who died as a result of disease, starvation, genocide (in particular, the Holocaust), and aerial bombing. The former Soviet Union and China suffered the most casualties. Estimates place deaths in the Soviet Union at around 23 million, while China suffered about 10 million. No country lost a greater portion of its population than Poland: approximately 5.6 million, or 16%, of its pre-war population of 34.8 million died.

paragraph_text: The GER Class 127 was a class of a solitary experimental 0-6-0 compound steam locomotive built by the Great Eastern Railway at its Stratford Works in 1888. It was rebuilt as a simple locomotive in 1895, and withdrawn in 1913.

paragraph_text: British Rail 18100 was a prototype main line gas turbine-electric locomotive built for British Railways in 1951 by Metropolitan-Vickers, Manchester. It had, however, been ordered by the Great Western Railway in the 1940s, but construction was delayed due to World War II. It spent its working life on the Western Region of British Railways, operating express passenger services from Paddington station, London.

paragraph_text: In 1937, the Empire of Japan started a full-scale invasion of China after invading Manchuria in 1931, beginning the Second Sino-Japanese War (often considered a theatre of World War II). Their troops occupied Nanjing in December and carried out the systematic and brutal Nanking Massacre (the "Rape of Nanking"). Even children, the elderly, and nuns are reported to have suffered at the hands of the Imperial Japanese Army. The total death toll, including estimates made by the International Military Tribunal for the Far East and the Nanjing War Crimes Tribunal, was between 300,000 and 350,000. The city itself was also severely damaged during the massacre. The Nanjing Massacre Memorial Hall was built in 1985 to commemorate this event.

paragraph_text: The first full-scale working railway steam locomotive was built by Richard Trevithick in the United Kingdom and, on 21 February 1804, the world's first railway journey took place as Trevithick's unnamed steam locomotive hauled a train along the tramway from the Pen-y-darren ironworks, near Merthyr Tydfil to Abercynon in south Wales. The design incorporated a number of important innovations that included using high-pressure steam which reduced the weight of the engine and increased its efficiency. Trevithick visited the Newcastle area later in 1804 and the colliery railways in north-east England became the leading centre for experimentation and development of steam locomotives.

paragraph_text: Dossa Júnior was born in Lisbon, Portugal. In that country he only played with Imortal DC, spending the 2005–06 season in the third division. Subsequently, the 20-year-old moved to Cyprus, signing with Digenis Akritas Morphou in the First Division and suffering team relegation.

paragraph_text: Operating at normal power line frequencies, universal motors are often found in a range less than 1000 watts. Universal motors also formed the basis of the traditional railway traction motor in electric railways. In this application, the use of AC to power a motor originally designed to run on DC would lead to efficiency losses due to eddy current heating of their magnetic components, particularly the motor field pole-pieces that, for DC, would have used solid (un-laminated) iron and they are now rarely used.

paragraph_text: There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

paragraph_text: LMS diesel shunter 7050 is an experimental 0-4-0 diesel-mechanical shunting locomotive, introduced by the London Midland and Scottish Railway (LMSR) in 1934 and which remained in service with that railway for six years. It was later acquired for military use and is now preserved at the National Railway Museum.

paragraph_text: Kilburn High Road railway station is a London Overground station on the London Euston to Watford DC Line near the south end of the Kilburn High Road, London NW6 in the London Borough of Camden.

paragraph_text: Salzwedel station was built in 1870 during the construction of the Stendal–Uelzen railway (part of the America Line from Berlin to Bremen and Bremerhaven) by the Magdeburg-Halberstadt Railway Company. Railways formerly ran in seven directions from Salzwedel station or Salzwedel Neustadt station (which lay to the immediate east), as the table below shows. A locomotive depot (Bahnbetriebswerk) was built directly next to it in order to service these routes. During the Second World War, the station area was destroyed in an air raid on 22 February 1945, which caused about 300 deaths. Of the seven lines, only the Stendal–Uelzen railway remain. During the division of Germany the line was cut at the border, but continuous operations were restored on 19 December 1999. It has been extensively modernised since reunification and electrified so that it can be used an alternative route for Intercity-Express train from Berlin to Hamburg.

paragraph_text: The Datsun DC-3 was a lightweight automobile produced by Nissan and sold under the Datsun brand in 1952. The series was a predecessor to the Fairlady sports cars, and succeeded the pre-war Road Star. It was powered by the 860 cc Nissan D10 straight-four engine which produced and could propel the DC-3 to . The side badges read "Datsun 20" ("20" meaning 20PS). Leaf springs were used in the suspension, and a three-speed manual transmission was specified. Four people could ride in the DC-3. Only 50 DC-3s were ever built; of these, 30 were sold (the remaining cars were converted back into trucks). A variant of the DC-3 was the Datsun 5147 pickup.

paragraph_text: The original Keadby railway station was the eastern-most terminus of the South Yorkshire Railway. The railway, which was extended from Thorne and opened in September 1859 was built without an Act of Parliament, as the railway company owned the canal alongside which they built the line.

paragraph_text: Northallerton West is a temporary station built by the Wensleydale Railway as part of plans to link the railway with Northallerton, North Yorkshire, England.

paragraph_text: Many Somerset soldiers died during the First World War, with the Somerset Light Infantry suffering nearly 5,000 casualties. War memorials were put up in most of the county's towns and villages; only nine, described as the Thankful Villages, had none of their residents killed. During the Second World War the county was a base for troops preparing for the D-Day landings. Some of the hospitals which were built for the casualties of the war remain in use. The Taunton Stop Line was set up to repel a potential German invasion. The remains of its pill boxes can still be seen along the coast, and south through Ilminster and Chard.

paragraph_text: In the UK, the London, Brighton and South Coast Railway pioneered overhead electrification of its suburban lines in London, London Bridge to Victoria being opened to traffic on 1 December 1909. Victoria to Crystal Palace via Balham and West Norwood opened in May 1911. Peckham Rye to West Norwood opened in June 1912. Further extensions were not made owing to the First World War. Two lines opened in 1925 under the Southern Railway serving Coulsdon North and Sutton railway station. The lines were electrified at 6.7 kV 25 Hz. It was announced in 1926 that all lines were to be converted to DC third rail and the last overhead electric service ran in September 1929.

paragraph_text: Railways must operate at variable speeds. Until the mid 1980s this was only practical with the brush-type DC motor, although such DC can be supplied from an AC catenary via on-board electric power conversion. Since such conversion was not well developed in the late 19th century and early 20th century, most early electrified railways used DC and many still do, particularly rapid transit (subways) and trams. Speed was controlled by connecting the traction motors in various series-parallel combinations, by varying the traction motors' fields, and by inserting and removing starting resistances to limit motor current.

paragraph_text: Where the Corpses Sink Forever is the third studio album by the Dutch symphonic black metal band Carach Angren. It was released on May 18, 2012 via Season of Mist. The concept of this album is not about a Dutch urban legend or ghost stories, like the previous two albums, but it deals with war. The album contains references to World Wars I and II, as well as the Vietnam War. The first track is a tape recording of a soldier who was ordered to shoot seven prisoners of war, and each shot can be heard. The soldier explains the strange and wicked sensations he felt as he shot each of the prisoners; they were grinning happily as he tried to kill them, and it seemed like the shots went through them, but they were actually demons who captured the soldier's soul in a time loop, making him suffer for eternity. Many of the songs in this album describe the deeds of each of the seven fiends; death, war, suffering.

paragraph_text: Numerous men from Detroit volunteered to fight for the Union during the American Civil War, including the 24th Michigan Infantry Regiment (part of the legendary Iron Brigade), which fought with distinction and suffered 82% casualties at the Battle of Gettysburg in 1863. When the First Volunteer Infantry Regiment arrived to fortify Washington, DC, President Abraham Lincoln is quoted as saying "Thank God for Michigan!" George Armstrong Custer led the Michigan Brigade during the Civil War and called them the "Wolverines".

Question: How many people in the country that built an experimental 6kV DC railway died in the war?
Answer: 23 million