I recently downloaded this app on my Android phone called "Ghost Radar Classic". It was one of the most popular apps on the store, so I wanted to see what all the fuss was about. The app looks like this, courtesy of the app's webpage:
You have a radar on which little spots appear. As you walk around, you'll run into some of these spots, which are apparently areas in which your phone detects "quantum fluctuations" (in other words, GHOSTS according to the app creator).
Then the program will turn these fluctuations into words, which are supposed to be what the ghost is saying. I know, this sounds really fake-y, and I thought so too!
BUT I've been playing around with the app for a few days and it seems almost legit. At first I thought the spots were just detected motion, such as if someone was walking outside or something. However, I set my phone down with the app running on my kitchen counter as my mom, dad, sister and dog were there. The phone didn't detect anything.
I did the same thing when I was the only one in the house, and the app went crazy. Most of the words don't make any sense, but one time one of the words that showed up was "car" after I asked the ghost where it was. I went into the car and the app went crazy again, detecting several "ghosts" at once.
Another time I was driving past a hospital. After several minutes of inactivity, tons of things showed up on the screen. The words that flashed were "hurt", "chest" and "operation". CREEPY...all of the words are associated with a hospital.
I know, you're probably still skeptical. Just download the app and decide for yourself what it's all about. I don't know if I believe in it's validity, but the app is a lot of fun to play with. And it might just be making me want to sleep with a light on.