It is a well know marketing fact that it takes on average seven interactions 2 way communications with a prospect before they will open their wallet and spend money with you.
One of the biggest red flags that you might be dealing with a bad doctor is a lack of communication. Good identify features of two way communication between patient and doctor is critical to ensure you're getting the best medical care possible. The doctor you choose should take the time to ask you about your symptoms and discuss your concerns. He or she shouldn't cut you off or assume he knows what the problem is before you've completely described your symptoms. This is how important medical problems are missed or misdiagnosed. No matter how busy a doctor is, he should take the time to listen and question you about your symptoms.
Most of us are familiar with EVP. But for some who may not know, EVP stands for Electronic Voice Phenomenon. This is a technique most ghost hunters use during their investigation. When conducting an EVP session an investigator will walk around a presumed haunted location with an audio recorder asking questions such as "Is there anyone here?" or "Can you please tell me your name?" Now, the investigator will not hear any audible responses at the time, but upon playback of the recording may indeed hear a voice answering his or her questions. Being that that one could not hear the voice at the time of the recording, it is difficult to establish a form on 2 way communication. This is where the ghost box comes into play.
My ninth greatest invention the Internet. Early stages of the Internet where not designed for non military personnel, and where intended as an impenetrable military communications network. By tapping into the telephone grid the military was capable of getting a digital signal to any computer in any facility even if many lines had been cut. The origin of the term inter net, or the Web was created from the idea that there are millions of lines underneath the ground spanning from house to house, pole to pole, and network to network much like a web. If any one of these connections goes down you simply reroute around it. This network was eventually interconnected with the others in the 1980s as the TCP/IP protocol became increasingly popular. In the early 90's the World Wide Web began gaining popularity.
Now for the big question: Does it work? Many believe it does, I have to admit I have not had success with the ghost box, but I have heard interesting examples, I have also heard people claiming they have caught voices that were nothing but fragments communication techniques different radio shows being scanned. Build one and try it out yourself.