What are the magical functions of the medical endoscope?

Tracheoscope is one of the modern high-tech products - medical endoscope. An endoscope is a tiny mirror that can be inserted into the body. It can help doctors see inside the internal organs directly from the outside of the body.

Medical endoscopes have been developed for more than 100 years. In 1877, the British doctor Niz invented hysteroscopy, later people invented cystoscope, nasopharyngeal scope, tracheoscope, laparoscopic and so on. But it wasn't until the 1950s that endoscopes really gained widespread medical use.

The endoscope "revolution" was triggered by the invention of optical fiber, the optical fiber. The invention of the optical fiber was clearly influenced by a famous experiment in 1870. That year, British physics dinking dahl did an experiment in the royal society of the lecture hall: he put in a bucket full of water, is at the top of the barrel with a light bulb light up the water in the bucket, then, he let a bucket of water out a a small hole at the bottom of the barrel wall, when people see, flowing out of holes bend flow is a bright column - bending light will follow the flow transmission. Why doesn't light travel in straight lines here? This is the total reflection of light, Dundar explained: light travels in a straight line, meets something in the way, will be reflected back, this phenomenon is the light in the curved water for many total reflection of the result.

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