I finally got around to putting something interactive on umop-apisdn.org. It takes whatever text you enter and tries to turn it upside down. It works best with lower case text.
I used the Unicode IPA character set which contains nearly all the upside-down characters I needed. You may find that your browser may or may not render any or all of the IPA characters, so I've provided an ASCII rendering option for backwards compatibility.
¡unɟ əʌɐH
July 23 2008, 09:59:11 UTC 3 years ago Edited: July 23 2008, 10:03:27 UTC
You may want to flip !? as well, and swap [](){}, and replace full stop by mid-dot.
July 23 2008, 10:44:37 UTC 3 years ago
I added some more characters as you suggested, thanks.
July 23 2008, 11:24:54 UTC 3 years ago Edited: July 23 2008, 11:26:50 UTC
Also, I should perhaps note that I didn't suggest the idea to anyone else (and revfad.com is not mine); I just woke up one morning to lots of comment notifications from people finding revfad.com/flip (and with it, the link to my journal entry) through Boingboing.
I've no idea how that person found my journal entry; they certainly never mentioned to me that they were making an "app" based on it.
July 23 2008, 10:06:05 UTC 3 years ago
July 26 2008, 23:39:56 UTC 3 years ago
http://umop-apisdn.org/umop.py?text=W
It looked fine until I actually flipped my monitor. Bizarrely, I discovered that I knew the short cut key to rotate my screen!
July 27 2008, 00:09:46 UTC 3 years ago