Why are X rays called X rays?

Related questions

1. Does an xray show lung cancer?
2. What radiation level is dangerous?
3. Can you feel a lung tumor?
4. Does an xray show arthritis?
5. Can an xray detect cancer?
6. What happens if you touch the elephant's foot?
7. What is the weakest form of radiation?
8. How do doctors test for infection?
9. What is the most dangerous type of radiation?
10. What does osteomyelitis pain feel like?

Tags

1. #ability
2. #german
3. #simple
4. #visible
5. #materials
6. #through
7. #because
8. #wilhelm
9. #roentgen
10. #physicist
11. #answer
12. #mysterious
13. #absorb
14. #light
15. #radiation
16. #discovered
17. #called