…employers can no longer rely on applicants with #university degrees to be more capable or smarter than those without #degrees

…students need to realize that acceptance into university is no longer an invitation to join an #elite group”

https://www.frontiersin.org/articles/10.3389/fpsyg.2024.1309142/abstract: BOOM

How long does the early sound field last? At what attenuation does the late sound field begin? What degree of «acoustic personality» does an enclosure have? Why is the EDT defined from 0 dB to -10 dB, if the early field could be masked by the reverberant field at another attenuation? These are all questions answered by the theory and calculation of acoustic texture parameters.

Vibrationdata

The top image is the air conditioner mounted near a back corner of my home. It is Carrier model 24AHA424A003. It has a scroll compressor, model ZP20K6E-PFV-130. I measured its output sound using my Android Smartphone.

The condenser motor nominal speed is 800 RPM (13.3 Hz). The motor’s fan has 3 blades with a nominal blade passing frequency of 40 Hz. The 41.6 Hz spectral peak appears to be the actual blade passing frequency with the motor running about 3.8% higher than nominal.

The scroll compressor frequency is 60 Hz with a 2X harmonic at 120 Hz. The difference between the 118.6 & 120 Hz peaks is 1.4 Hz which is the audible beat frequency in the sound file. The 1.4 Hz delta pattern is repeated near 180 & 240 Hz.

Principles of Refrigeration

  • Liquids absorb heat when changed from liquid to gas
  • Gases give off heat when changed…

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nebusresearch

I mentioned in my last Reading the Comics post that it seems there are fewer mathematics-themed comic strips than there used to be. I know part of this is I’m trying to be more stringent. You don’t need me to say every time there’s a Roman numerals joke or that blackboards get mathematics symbols put on them. Still, it does feel like there’s fewer candidate strips. Maybe the end of the 2010s was a boom time for comic strips aimed at high school teachers and I only now appreciate that? Only further installments of this feature will let us know.

Jim Benton’s Jim Benton Cartoons for the 18th of April, 2022 suggests an origin for those famous overlapping circle pictures. This did get me curious what’s known about how John Venn came to draw overlapping circles. There’s no reason he couldn’t have used triangles or rectangles or any shape, after…

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Ballet: The Best Photographs

© Nikolay Krusser Николай Круссер © Nikolay Krusser Николай Круссер

© Nikolay Krusser Николай Круссер © Nikolay Krusser Николай Круссер

© Nikolay Krusser Николай Круссер © Nikolay Krusser Николай Круссер

Olga Smirnova Ольга Смирнова and Artem Ovcharenko Артем Овчаренко (Bolshoi Ballet), “Romeo and Juliet”, 2015 Gala Russe, les Etoiles des Ballets Russes, Grimaldi Forum, Monaco

Source and more info at:
Photographer Nikolay Krusser on Twitter
Photographer Nikolay Krusser on Google+
Photographer Nikolay Krusser on You Tube
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Photographer Nikolay Krusser on Fine Art America

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Maria Sherow

Meet my friend and QHHT client Jason Hallman, who is an amazing artist from Stallman Studio.  His artwork “Canvas on Edge” is pure eye candy.

Stallman pioneered a new technique using paint and canvas as sculpture, naming this body of work Canvas on Edge. They take canvas and paint and give it a creative edge. Now the canvas has the leading role, creating form, highlight and movement.

The cut edge of the canvas creates an elevated line drawing and when seen at an angle, fields of color emerge as your perspective to the piece changes.

Each length of painted canvas is bonded to itself and to the background creating a rigid structure within the frame.

The hue of the painted canvas reflects on the background creating a spectrum of color. By using reflecting light, pigment and structure they can multiply the hues and tones within each sculpture.

They create together…

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gregfallis.com

I got metaphorically spanked a couple of days ago. Folks have been talking about the Fearless Girl statue ever since it was dropped in Manhattan’s Financial District some five weeks ago.I have occasionally added a comment or two to some of the online discussions about the statue.

Recently most of the Fearless Girldiscussions have focused on the complaints by Arturo Di Modica, the sculptor who createdCharging Bull. He wantsFearless Girl removed, and that boy is taking a metric ton of shit for saying that. Here’s what I said that got me spanked:

The guy has a point.

This happened in maybe three different discussions over the last week or so. In each case I explained briefly why I believe Di Modica has a point (and I’ll explain it again in a bit), and for the most part folks either accepted my comments or ignored them. Which…

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