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Some people still use their existing CD collections or their old functional equipment. Some prefer the sound of vinyl records. Specialist or niche applications use technology that may have become commercially obsolete, like the vacuum tube. Historical societies may maintain a working knowledge of old machines.
The oldest and largest known qanat is in the Iranian city of Gonabad; after 2,700 years, it still provides drinking and agricultural water to nearly 40,000 people. [22] It was designed to carry water from underground sources to desert areas for agricultural and population growth.
The three-age system does not accurately describe the technology history of groups outside of Eurasia, and does not apply at all in the case of some isolated populations, such as the Spinifex People, the Sentinelese, and various Amazonian tribes, which still make use of Stone Age technology, and have not developed agricultural or metal ...
5900 – 5600 BC: Oldest evidence of salt production found in Southeastern Europe, in the countries of Moldova and Romania. [106] 5500 – 5200 BC: Oldest evidence of cheese found, in Poland and on the Dalmatian coast of Croatia. [107] [108] 5500 BC: Sailing - pottery depictions of sail boats, in Mesopotamia, [109] and later ancient Egypt [110 ...
[7] [8] [9] The hand-blown, carbon-filament common light bulb was invented by Adolphe Chaillet, a French engineer who filed a patent for this socket technology. [10] It was manufactured in Shelby, Ohio , by the Shelby Electric Company in the late 1890s; [ 7 ] many just like it still exist and can be found functioning. [ 11 ]
This is a list of the oldest extant registered generic top-level domains used in the Domain Name System of the Internet. Until late February 1986, Domain Registration was limited to organizations with access to ARPA. Public registration was revealed on Usenet on February 24, 1986. [1]
Ring-and-spring microphones, such as this Western Electric microphone, were common during the electrical age of sound recording c. 1925–45.. The second wave of sound recording history was ushered in by the introduction of Western Electric's integrated system of electrical microphones, electronic signal amplifiers and electromechanical recorders, which was adopted by major US record labels in ...
The Harwell computer, or Harwell Dekatron computer, [1] [2] later known as the Wolverhampton Instrument for Teaching Computing from Harwell (WITCH), [3] is an early British computer of the 1950s based on valves and relays.