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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.
Category: Lost inventions. ... This category includes inventions with evidence about their feasibility (e.g. Roman concrete), as well as alleged or pseudo-inventions.
Obsolete technology Replacement Still used for Bathing machine: No longer required due to changing social standards of morality Hourglass: Clock: Tasks where a fixed amount of time can be measured with a low-tech solution: Exposure time tracker in saunas (where electronics might be damaged by the heat or ultraviolet light); retro kitchen timers, board games, other short-term timers.
Spurious invention Description Angel Light: According to its inventor, this device could make walls, hands, and stealth shielding transparent. Black box: Popular name for a diagnostic machine made by Albert Abrams. It supposedly could diagnose diseases based on their special vibrations that can be sensed along someone's spine. [1]: 37 Chronovisor
Henri Thuile (died 1900), inventor of the large high-speed Thuile steam locomotive, died during a test run between Chartres and Orléans. Conflicting accounts indicate that he was either thrown from the derailing locomotive, hitting a telegraph pole, [ 44 ] or that he simply leaned too much and was instantly killed by hitting his head against a ...
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 ...
A "lost invention" must mean more than just "a thing they don't make anymore" for this to be a valid subject. If we can pin it down as "a genuine invention for which the manufacturing process has been lost and not recovered" then we can remove the entries that do not fit that and be left with a valid article.
After the inventor swore that he was the only man alive who knew the manufacturing technique, Tiberius had the man beheaded. It has been suggested this was either to protect the existing glassmaking industry, [ 2 ] to ensure that glass remained breakable as an effective planned obsolescence or because he feared that the glass would devalue gold ...