Yesterday I reviewed
a rather silly "invention" that claimed to solve a real problem in a highly inefficient way. Canceling noise through an open window by wiggling the windowpane above the opening with countervibrations.
I suggested that you'd get better results with a modified windowscreen or louvers.
Money where mouth is!
I've been preaching REAL SCIENCE and BE YOUR OWN BEACON
, but I haven't done any real science since this 2018 test of Hubbard's E-meter.
I got an interesting and useful and SCARY result from the test. Hubbard's device, as originally designed, is an ACTIVE STIMULATOR of nerves, with a definite effect on stress and heartrate. It's a brainwashing tool, not just an 'auditor'.
Aside from needing to practice what I preach, I've been hungry
for some real science. I needed a shot of Carver T-cells to fight the INFINITE OVERDOSE OF HYPERFAKE HOLOCAUSTAL GENOCIDAL BLASPHEMOUS DEMONIC DESTRUCTION OF ALL LOGIC AND FACTS AND KNOWLEDGE.
= = = = =
So here we go.
Totally unoriginal. A basic acoustics lab setup. Not likely to cause any surprises or knowledge, just fun.
The SLM is a real calibrated GenRad.
The high-tech scaffolding is made from Tinkertoys and zipties. Looks shitty, but solid enough.
I used the computer to generate a steady 1k tone, set the amplitude so the SLM was reading about 50 dB without any obstructions. Then I tried a variety of things between the speaker and the SLM.
1. Piece of metal windowscreen: No attenuation.
2. Piece of cardboard: No attenuation.
3. Folded towel: No attenuation.
4. Nylon screen filter from the air conditioner: No attenuation.
5. Finally the item that I hoped
would give some attenuation. A HEPA filter from a dust-cleaner. Surprise! The HEPA actually FOCUSES the sound, and the SLM reads about 15 dB HIGHER with the filter in front of the speaker.
So I got some real (and extremely literal) Carver after all, along with some fun.
Carver as always:
Look about you.
Take hold of the things that are here.
Talk to them.
Let them talk to you.
= = = = =
Later I added more headroom to the high-tech infrastructure so I could move the objects up and down. The 'focus' effect of the HEPA only occurs when it's sandwiched between the speaker and SLM with no gaps above or below. When the fat HEPA is in the middle with air on both sides, it gives a very slight attenuation.
Labels: Carver, Equipoise, Experiential education, Metrology