목차
*CONTENTS
*INVENTION
*GENERAL FEATURE
*HOW X-RAY MAKES
*APPLICATION OF X-RAY
*INVENTION
*GENERAL FEATURE
*HOW X-RAY MAKES
*APPLICATION OF X-RAY
본문내용
What is the X-ray ?
- Invention
- General Feature
How X-ray makes.
Application of X-ray.
Conrad Roentgen (1845–
1923) discovered X-ray in
1895 while he was experi-
menting with electricity.
소개글