Parapsych Glossary

I came across this website http://www.parapsych.org/glossary_a_d.html, which is a glossary published by the Parapsychological Association. I am intrigued - it seems I have a lot to learn. There are many words in this glossary - most of the words I have never heard of!

Like Kirlian photography! Sounds like a great process, but in all of my digging I have never come across such a process. I am either more "novice" than I thought or researchers aren't using this process very often.

So here is my question: Do any of you use technology or techniques that are not widely used? Could you explain them. I am so curious it hurts!!