It might either be diaphragm or a coil.
not sure but hope it helps.
Answer:
LinkedIn is very safe
Explanation:
LinkedIn is very safe, that being said you should never post private information about yourself anywhere that you do not want others to see/know. LinkedIn is a job recruiting and networking site, meaning that all the information that you have or will be publishing there should be related to your career. There is no reason for you to publish private information such as document numbers, social security number, address, bank account info, etc.
The privacy policy will tell you what the site will do with your information.
