Facts About X

Xi'an is one of the oldest cities in China, with a history dating back 3,100 years. Located in northwest China, it was the capital of 13 dynasties and has been called the "eighth wonder of the world." Among its many notable features are the Terracotta Warriors, the...

An x-ray is a high-energy electromagnetic radiation. It is used in medicine to take pictures of the inside of the body.They are also used in airport security to see if people are carrying metal objects. X-rays are a type of electromagnetic radiation, just like visible...

A xylophone is a percussion instrument that consists of a series of tuned wooden bars that are struck with mallets. The xylophone is used in a wide variety of music genres, from classical to pop. Here are 10 facts about xylophones that you may not know: 1. The word...

In 1895, German physicist Wilhelm Roentgen discovered X-rays, which were soon recognized for their medical applications. X-rays are a type of electromagnetic radiation, similar to visible light, except that they have much shorter wavelengths and higher energies. When...

Xu Kai is a Chinese actor. He was born on August 27, 1987 in Xi'an, Shaanxi, China. He is best known for his role as "Deng Xiaoping" in the television series "The Once and Future Deng" (2014). There is not enough information given to answer this question. What is Xu...

Xenon is a chemical element with atomic number 54 and element symbol Xe. It is a rare, colorless, odorless gas that is found in the Earth's atmosphere in trace amounts. Xenon is used in some light bulbs and in flash photography. Xenon is a colorless, odorless, heavy,...

R waves are a type of electromagnetic radiation, just like visible light and radio waves. They were first discovered in 1895 by German physicist Wilhelm Röntgen, who won the first Nobel Prize in Physics in 1901 for his work. R waves are harmful to human tissue and can...