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83

Japanese AC power outlets were first standardised in 1926 with the publication of the "挿込型接続器標準仕様書" (lit., "Standard for a Insertable Connector"), which became JIS C 8303. At the time, Japan was barely an industrial nation, and generally relied on imported power outlets. The leading designs up for consideration were thus the German Schuko and the American "2-...


34

The Epidaurus Theatre (ca. 300-340 BC), the Delphi theatre (4th century BC) and the Odeon of Herodes Atticus (161 AD) in the Acropolis of Athens (known locally as the the Herodeon), still fulfil their original purpose, all three are constantly used as venues for various festivals. The ancient theatre in Dion is also used occasionally. The Colosseum (...


25

There is a tunnel under a mountain in Samos built around 530 BC. It is described by Herodotus, book III, 60. In 1882 a tunnel which matches Herodotus description has been actually found. It is one kilometer long and 2 times 2 meters in cross section, so its dimensions suggest that people walked through it. What is especially amazing about this tunnel is ...


22

Pantheon in Rome (126 AD). Most of the older buildings in the Wiki list ( http://en.wikipedia.org/wiki/List_of_the_oldest_buildings_in_the_world ) are either not in use, or used as tombs only, or were reconstructed significantly.


18

If you look at the details of the oldest buildings on your list, all of them are built from fieldstone or minimally-shaped quarried stone. Further, the building materials were either found on-site or transported a relatively short distance. Most of the Fertile Crescent, and particularly Mesopotamia, does not have access to these building materials. ...


14

Actually, some of the oldest known man-made structures are in the Fertile Crescent (FC). The list in your question purposefully excludes sites like Göbekli Tepe, Tell es-Sultan, and Tell Qaramel, each in the FC, on the basis that they're not "recognizable standing buildings". As such there's inherent bias in the source you cite to exclude sites that have ...


14

Tough to narrow this down, but at least a couple sources make what may be a useful comparison to more recent construction of Scottish military roads in the 1700s. from The Secret History of the Roman Roads of Britain: And their Impact on Military History, By M.C. Bishop Direct comparison is obviously difficult, not least because there would inevitably ...


13

The upper story of the Theater of Marcellus (ca 13 BC) in Rome is a block of apartments.


12

There appear to be two candidates which can definitely be considered for oldest road tunnel in the world, and a couple of others which are older but may be disputed. Roughly in chronological order, they are as follows: 1. The Euphrates Tunnel (circa. 2180 to 2160 BC, a little less than 1 km long). This has the most dubious claim as it was probably a ...


11

Steel grating for platform use was first developed and produced by Walter Irving at the beginning of the 20th century. It was first used for ventilation of New York's stiflingly hot subway system, but his company, Irving Subway Grating, quickly marketed it for a range of other uses including bridge decking and catwalks. Aluminum grates (which might be what'...


11

No, wheels are not older than walls. Walls (as in city walls, designed to protect a group of people) have been discovered at Jericho, and dated to c 8000 BCE. The earliest walls of any kind that we have found so far are at Göbekli Tepe, and these have been dated to the 9th millennium BCE. The earliest wheel that we have found was discovered in the city of ...


10

While not exactly a building, the Western Wall in Jerusalem ( http://en.wikipedia.org/wiki/Western_Wall ) is a site in which daily praying takes place. It was constructed around around 19 BCE.


10

This answers primarily the first version of the question that is still evidenced in the misconception of the title, and thus the rest of this answer is still relevant to read in conjunction with semaphore's answer, which would otherwise re-inforce these misconceptions: Q Why does Japan use the same type of AC power outlet as the US? This is actually not ...


9

As "Vikings," the Normans were good SHIP builders. Once they reached land, it wasn't much of a stretch for them to transfer their skills to building churches and other buildings. The Normans adopted a style of architecture that is known as "Romanesque." It was originated by the Romans, but later imitated by many west Europeans, chief among them the Normans. ...


9

It's not just Europe but even narrower. You'll notice the top 3 listed are all in France. Of the rest of the top 10, 4 are in the British Isles. I think Mark has about half of the answer: These structures are over 5 thousand years old. Human-made materials have trouble lasting that long, so the very nature of the question privileges areas with lots of ...


8

Turns out it was teak wood. Teak was the preferred would and the red brown color wouldn't be a mahogony stain, but the natural color. As teak is sourced from the Thai/Burma area, Dec. 7th ended the supply chain. Douglas-Fir was substituted on the newer carriers in WWII, and that would have to have been stained and subsequently painted. http://cs....


8

If you're willing to accept the Navy of South Carolina as being part of the US Navy, then the Indien/South Carolina, built in an Amsterdam shipyard in 1778, seems to meet your criteria. It was built to order as a warship rather than being converted from an existing merchant ship, for some government that eventually became the United States. The only thing ...


7

In Europe there were historically two ways to build ships. Wikipedia refers to them as Clinker and Carvel. Carvel originated in the Mediterranean while Clinker was more typical in the Atlantic. Clinker-built requires less caulking so is more lightweight and simpler to build, resulting in a flexible hull well suited for the rigours of ocean travel. ...


6

The Roman theatre in Caesarea.


6

According to this source, Carthage remained a minor Phoenician outpost until after the fall of Tyre to Alexander the Great in 332 BC. At that time many of the wealthy citizens of Tyre, having ransomed themselves from Alexander, moved to Carthage and began the constructions that led to it rapidly becoming the wealthiest city of the Western Mediterranean. If ...


6

In the mid 1920s the Navy commissioned the construction of several ships for the Asiatic Fleet based on the Yangtze. The ships were built by the Kiangnan Dock and Engineering Works, in Shanghai, China. Those ships were USS Luzon, USS Mindanao, USS Oahu, USS Panay, USS Guam, and USS Tutulia.


5

Not sure if they qualify but the Asheville and Natchez were River Class frigates built in Canada in 1942, for the RN and RCN, transferred while still being built under the Reverse Lease Lend to the USN. If they qualify there were also a number of Modified Flower corvettes transferred while being built. Others?


5

Primarily the team of John Hawkins and Mathew Baker. Hawkins had made several transatlantic voyages in the 1560s using typical English ships for the time. They were ok in the North and Irish seas, but the design was not well suited for the blue waters of the Atlantic. He came back determined to design something new. After some domestic adventures which ...


5

Civilisations not only build buildings, but destroy and reuse them. Many ruins were effectively used as quarries by local people and stones, e.g. bricks from Roman buildings ended up in an early medieval church, then in a late medieval fortress, then in a noble home (see here, only in Hungarian). Wikipedia also mentions how roman bricks were reused. I ...


4

We still have an active shipyard on Guam and at Guantanamo. We have had other shipyards overseas in the past, but the rest of them have been turned over to the local government. The only exception is the shipyard on Pago Pago which was turned over to the Department of the Interior. http://www.shipbuildinghistory.com/history/shipyards/3public.htm


4

Aboutcivil.org estimates the value at 50 million rupees based on the price of gold to rupees at the time. The site estimates the value at $500 million in 2005. At 1.4 rupees per gram of gold, that's around 35,700 kilograms of gold. Today that's worth around $1.5 billion. Certainly enough to put a dent in almost any treasury.


4

Bailey bridge Launching nose is used to pull the main bridge girder from one bank to the other. When pulling or pushing , there should be enough counterweight to avoid the launching nose falling down into river.


4

I believe the "launching nose" is meant. http://www.thinkdefence.co.uk/2012/01/uk-military-bridging-equipment-the-bailey-bridge/ Regarding the nose specifically, from the above site: http://farm8.staticflickr.com/7146/6655388167_d1e515d555.jpg http://farm8.staticflickr.com/7171/6655567565_ef3b5c1684.jpg http://farm8.staticflickr.com/7006/...


4

I think is possible that only Roman buildings are still in use. In Spain we have the Theatre of Mérida, inaugurated 15 B.C and today it is used to play Roman tragedies, and Hercules' Tower, a Roman lighthouse in A Coruña, still in use.


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