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This is a list of lost inventions - technologies whose original capabilities cannot be recreated in the same form anymore. It does not include theoretical inventions. It does not include theoretical inventions.
This is a list of obsolete technology, superseded by newer technologies. Obsolescence is defined as the "transition from available to unavailable from the manufacturer in accordance with the original specification." [1] Newer technologies can mostly be considered as disruptive innovation. Many older technologies co-exist with newer alternatives ...
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
This category includes inventions with evidence about their feasibility (e.g. Roman concrete), as well as alleged or pseudo-inventions. Subcategories This category has only the following subcategory.
10. Popsicles. Who: Frank Epperson, 11-year-old boy. When: 1905. How it was created: When soda pop first hit the market, 11-year-old Frank Epperson decided to save money and make his own. He ...
This is a list of spurious inventions, technologies which are generally considered to not possess their claimed capabilities, to be hoaxes, or to not have ever existed in the first place. Spurious invention
When visible, the stars could be used to measure the time at night. There were 10 stars for the 10 hours of the night; the day had a total of 24 hours including 12 hours for the day, 1 hour for sunset, and 1 hour for sunrise. Merkhets were used to replace sundials, which were useless during the dark. [152]
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