Discover and read the best of Twitter Threads about #acoustics

Most recents (3)

In a recent discussion, a question was asked about whether or not homeowners could stop the #hum and low-frequency noise from entering their homes using bass traps & sound-proofing. I shared some of our experiences in trying to deal with the #LFN and #vibration. 1/...
I've heard the hum In at least six different professional #recording studios who spent tens of thousands of dollars on sound proofing and noise mitigation. In #calgary, a family spend a tremendous amount of money wrapping their entire house in sound proofing material and... 2/...
...they still heard the hum. In fact, because the #noise mitigation was so effective in the studios, the hum was worse because there weren't any other sounds competing for my ear's attention. 3/...
Read 8 tweets
It's Sunday afternoon, so it must be time for some #Acoustics #DataVisualization and this time it's all about musical instrument strings...
You might remember my 'Acoustic Ashby chart' where I plotted bulk modulus versus density for various fluids. I've redrawn it with plotly; in due course there'll be a web version where you can hover over points to get the substance name etc, but for now here's a static plot. Image
Bulk modulus (inverse of compressibility) provides the restoring force that makes the fluid return to its equiliibrium state when disturbed; density provides the inertia that makes them take time to do so. Liquids are stiff and heavy, gases are floppy and light.
Read 15 tweets
1-Why is #Gayatri known as the Queen of #Mantras in #Sanatana?

The #Gayatri #Mantra is the most revered mantra in the #Vedic lore. (1/27)

#enlightenment

#प्रबोधन
2-It is an invocation as well as a prayer addressed to the Supreme #Creator of the #Universe

..and of the three worlds..

..the terrestrial, the celestial, and the one connecting these two. (2/27)

#संस्कृतिबोध

#वैदिकआचार
3-The literal meaning of the mantra is as follows -

We meditate on the glory of that #Ishwara

..the Supreme Lord of the universe

..Who has created this universe

..Who is accomplished to be revered

Who is the embodiment of true knowledge and light (3/27)
Read 28 tweets

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