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JNR Class ED15

From Wikipedia, the free encyclopedia

Class ED15
Preserved ED15 1 in June 2017
Type and origin
Power typeElectric
BuilderHitachi
Build date1926
Total produced3
Specifications
Configuration:
 • UICB + B
Gauge1,067 mm (3 ft 6 in)
Length:
 • Over couplers13,260 mm (43 ft 6 in)
 • Body12,220 mm (40 ft 1+18 in)
Width2,780 mm (9 ft 1+12 in)
Height3,840 mm (12 ft 7+18 in)
Loco weight59 t
(58 long tons; 65 short tons)
Electric system/s1,500 V DC overhead line
Current pickup(s)Pantograph
Performance figures
Power output820 kW (1,100 hp)
Tractive effort9,000 kgf (20,000 lbf)
Career
OperatorsJNR
Number in class3
NumbersED15 1 - 3
Retired1960
Preserved1
DispositionAll withdrawn

The Class ED15 (ED15形) was an electric locomotive formerly operated in Japan from 1926 until 1960.[1] The Class ED15 was the first mainline electric locomotive type to be built domestically in Japan.[1]

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  • Where did English come from? - Claire Bowern

Transcription

When we talk about English, we often think of it as a single language but what do the dialects spoken in dozens of countries around the world have in common with each other, or with the writings of Chaucer? And how are any of them related to the strange words in Beowulf? The answer is that like most languages, English has evolved through generations of speakers, undergoing major changes over time. By undoing these changes, we can trace the language from the present day back to its ancient roots. While modern English shares many similar words with Latin-derived romance languages, like French and Spanish, most of those words were not originally part of it. Instead, they started coming into the language with the Norman invasion of England in 1066. When the French-speaking Normans conquered England and became its ruling class, they brought their speech with them, adding a massive amount of French and Latin vocabulary to the English language previously spoken there. Today, we call that language Old English. This is the language of Beowulf. It probably doesn't look very familiar, but it might be more recognizable if you know some German. That's because Old English belongs to the Germanic language family, first brought to the British Isles in the 5th and 6th centuries by the Angles, Saxons, and Jutes. The Germanic dialects they spoke would become known as Anglo-Saxon. Viking invaders in the 8th to 11th centuries added more borrowings from Old Norse into the mix. It may be hard to see the roots of modern English underneath all the words borrowed from French, Latin, Old Norse and other languages. But comparative linguistics can help us by focusing on grammatical structure, patterns of sound changes, and certain core vocabulary. For example, after the 6th century, German words starting with "p," systematically shifted to a "pf" sound while their Old English counterparts kept the "p" unchanged. In another split, words that have "sk" sounds in Swedish developed an "sh" sound in English. There are still some English words with "sk," like "skirt," and "skull," but they're direct borrowings from Old Norse that came after the "sk" to "sh" shift. These examples show us that just as the various Romance languages descended from Latin, English, Swedish, German, and many other languages descended from their own common ancestor known as Proto-Germanic spoken around 500 B.C.E. Because this historical language was never written down, we can only reconstruct it by comparing its descendants, which is possible thanks to the consistency of the changes. We can even use the same process to go back one step further, and trace the origins of Proto-Germanic to a language called Proto-Indo-European, spoken about 6000 years ago on the Pontic steppe in modern day Ukraine and Russia. This is the reconstructed ancestor of the Indo-European family that includes nearly all languages historically spoken in Europe, as well as large parts of Southern and Western Asia. And though it requires a bit more work, we can find the same systematic similarities, or correspondences, between related words in different Indo-European branches. Comparing English with Latin, we see that English has "t" where Latin has "d", and "f" where latin has "p" at the start of words. Some of English's more distant relatives include Hindi, Persian and the Celtic languages it displaced in what is now Britain. Proto-Indo-European itself descended from an even more ancient language, but unfortunately, this is as far back as historical and archeological evidence will allow us to go. Many mysteries remain just out of reach, such as whether there might be a link between Indo-European and other major language families, and the nature of the languages spoken in Europe prior to its arrival. But the amazing fact remains that nearly 3 billion people around the world, many of whom cannot understand each other, are nevertheless speaking the same words shaped by 6000 years of history.

History

Three locomotives were built by Hitachi in Mito, Ibaraki, in 1926, based on electric locomotives previously imported from overseas.[1] Initially designated Class 1070 under the original Japanese Government Railways (JGR) numbering scheme, the locomotives became Class ED15 from 1928.[1]

The locomotives were initially used on Tokaido Main Line freight services, and were later employed on the Chuo Main Line.[1]

The locomotives were withdrawn from service between 1959 and 1960.[1]

Preservation

ED15 1 is preserved at the Hitachi Mito Factory in Hitachinaka, Ibaraki.[1]

Classification

The ED15 classification for this locomotive type is explained below.

  • E: Electric locomotive
  • D: Four driving axles
  • 15: Locomotive with maximum speed 85 km/h or less

See also

Mechanical Engineering Heritage (Japan), No. 45: Type ED15 Electric Locomotive.

References

  1. ^ a b c d e f g Sasada, Masahiro (25 November 2014). 国鉄&jr 保存車大全 2015-2016 国鉄&JR保存車大全2015-2016 [JNR & JR Preserved Rolling Stock Complete Guide 2015-2016] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. pp. 19, 121. ISBN 978-4863209282.
This page was last edited on 25 September 2023, at 06:39
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