What are some unsuccessful technologies?

Failed technology is a technology that might seem promising at one point, but subsequently failed to meet her expectations or even failed completely. There are much more successful technologies than unsuccessful because people tend to spend a lot of time or money for technology if it probably fails. However, technology occasionally fails.

One example of unsuccessful technology is wireless performance. Nikola Tesla, an inventor of the AC current, once represented gigantic power plants that would provide the Earth's crust such an electric charge so that one could gain power simply by plugging into the ground. Tesla spent millions on this vision and was building an electric tower so strong that the fields around it shone when it was turned on. But this tower ended only a little more than curiosity. It was dismantled when Tesla sank into debt. To this day, there is no effective means of transmitting wireless performance and it may never.

technology that has experienced a long failure period,It's airship. As soon as it was welcomed as an ideal flying machine during the "golden age of the airship" in 1900 to 1937, the construction of the airships ceased after the disaster Hindenburg , which occurred when the flammable skin ignited. 35 people lost their lives in the disaster and created many pictures and radio accounts that continue to chase today. From 1937 to the beginning of 2000, the airships were used primarily for limited advertising applications. At the beginning of the 21st century, however, it seems that airships are making a comeback.

Another classic unsuccessful technology is a cold merger. When she thought it was a potentially unlimited energy source, the cold merger attempted to initiate a nuclear fusion (energy source used in the sun) without extreme temperature or pressure, generally considered necessary. Text temperatures necessary to start the merger were traditionally a terminal barrier for its use as an economic energy source. In 1989 Stanley Pons and Martin Fleischmann, scientists from UniveSity of Utah, directly to the media and told them they had successfully developed a cold merger device. If it was true, it would provide a virtually unlimited energy source for all humanity. Unfortunately, PONS and Fleischmann's device was a failure and the claimed effects were not reproducible by other scientists. Cold Fusion lives as an archetypal example of unsuccessful technology.

There are many other unsuccessful technologies, but of course they tend to get less attention than successful technologies. The view of the history of unsuccessful technologies may be beneficial because it helps us apply justified skepticism to technologies that seem promising today.