List of spurious inventions
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 | 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. |
| Chronovisor | A time viewer claimed to have produced photographs and recordings of the ancient past. |
| Cloudbuster | A device that could purportedly make rain through manipulating atmospheric orgone, a kind of energy considered to be pseudoscientific. |
| Edison | A device claimed to produce numerous analyses of blood very quickly using very small samples. |
| Teleforce | A weapon, also known as Nikola Tesla's death ray or peace ray, that would accelerate pellets of material to a high velocity so as to cause significant damage from a long distance. |
| Nikola Tesla electric car hoax | Alleged advanced electric car. |
| Fleischmann–Pons cold fusion experiment | Attempt to cause nuclear fusion using electrolysis to achieve the high compression ratio and mobility of deuterium. |
| Kryakutnoy | Fictional inventor of hot air balloons. |
| Newman energy machine | Supposed free-energy machine invented by Joe W. Newman. |
| Perpetual motion machines | Hypothetical machines that do not need any added energy or force to continue motion. All attempts as of yet are considered spurious, and such a machine is considered impossible by modern thermodynamics. |
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