Computer knowledge

Getting ones own, previous IP address Maybe by an email send to oneself. I sometimes send low data, text only files to myself for as a back up. -And it's mainly possible to see the IP adress of a send mail.  Important: Finding the email message source. Maybe by searching a self made post or publication on the internet which might still have the IP address with it. -And then laying contact. - And it might not be a bad idea to store ones IP adress on a piece of paper. -If you don't do anything illegal. -And if it might be benificial, due to reasons.  It's also possible to store it just for ones self offcourse.

 Information for photo's taken with a telephone, smartphone. A photo taken with a telephone, smartphone which looks sharp on a telephone might be unsharp on a monitor or laptop screen. It's possible to watch all the photos on a monitor or laptop to see how sharp they are.