Re: video: HIGHLY DISTURBING Sounds From Beneath the Earth | The Proof Is Out There - YouTube
My initial thoughts were the big long tunneling rotating machines used to make new subway tracks between stations in large cities.
Years ago I wrote the hums off to these same boring machines making networks, miles underground, of tunnels for use by the military or secret governments who run the world.
After reading the Married Lady's, Mount Shasta story I included olde inner Earth civilizations, living deeper and independent of our military and governments.
http://www.onelight.com/telos/vishasta.html
Although hollow Earth governments would know who, what and why, I felt they were too deep to be involved with making tunnels out near our Earth's surface.
There are other entities living between the outside and inside, but I have only read or heard of a few. Reptilians are a big one.
Another was a small fellow giving the name as a 'Derno' that blocked a surface fellow from exploring further into an opening in a ravine in Toronto, maybe 45 years ago ?
We know from Rampa's olde books and a few recent emails that our Earth's 'gardeners' must approve of all this [ not saying this is all wholesome ] or they would have taken action to intervene.
Personal experience is not the cause of the hum from elsewhere. My employer designed a gas fired tumbling limestone dryer to use to reduce moisture content of gravel.
Unknown to our engineers, this created a loud humming sound in a town, miles away our cement manufacturing processes. The drying was redesigned to avoid this effect.
Love - Jim