Search results
Results From The WOW.Com Content Network
Technologies that were never successfully developed, may have disappeared completely. [2] These are not contained in the following list. Also not included are 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.
However, blind experiments have never conclusively found a difference between the sound of Stradivari's violins and other high-quality violins. [8] Starlite is an intumescent material said to withstand enormous amounts of heat. [6] Zhang's seismoscope, also known as hòufēng dìdòngyí, an ancient Chinese seismometer.
But not all inventions are major wins like cellphones, stoplights, or washing machines. Many more are in the category of absurd inventions that fell short of success. 13 Weird Inventions That Were ...
An ancient Chinese mechanical compass which took a millennium to reproduce. Tall bike: A bike which consists of two conventional bicycle frames connected one atop the other. Train surfing: As respectable and practical as drying one's hair in most parts of the world. Unused highway: Lost highways, unloved and unused. Uruguayan Air Force Flight 571
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 ...
United 23 was due to take off around 9am from New York City's JFK Airport. Like the other planes used in 9/11, it was a cross-country flight – in this case, bound for Los Angeles – which meant ...
For premium support please call: 800-290-4726 more ways to reach us
The binder clip was invented in 1911 by Washington, D.C., resident Louis E. Baltzley who was motivated by a desire to help his father, Edwin, a prolific writer and inventor, keep manuscripts in order. The original design was modified five times, but the essential mechanism has never changed. [135] 1911 Automobile self starter