Category: Wandering.Shop

Apparitions & anxiety in a lab are traced to infrasound from a fan…

I stumbled on a reference to this story recently. Just as fascinating this time as when I first read it.

TL;DR: Apparitions & anxiety in a lab are traced to infrasound from a fan producing a standing wave resonating at the frequency of the human eye. Vic Tandy went on to investigate whether the same waves were present in at least some sites with haunted reputations.

He died in 2005. I couldn’t find much follow-up research in a quick search.

#infrasound #science

Ghost buster: Chris Arnot explains why Vic Tandy of Coventry University is doing time in a cellar

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Definition of a tropical depression, according to NOAA

“Tropical cyclones with maximum sustained surface winds of less than 17 m/s (34 kt, 39 mph) are usually called “tropical depressions” (This is not to be confused with the condition mid-latitude people get during a long, cold and grey winter wishing they could be closer to the equator ;-)).”

https://www.aoml.noaa.gov/hrd/tcfaq/A1.html

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Related on K2R

Sometimes I wonder, why is the Salton Sea worth saving?

Sometimes I wonder, why is the Salton Sea worth saving? It’s not like the Aral Sea or Lake Chad. It was created in an engineering accident 100 years ago. Until then it was a low area in the desert.

This article makes the case for restoration, or at least remediation. A century’s worth of agricultural runoff (which has made the lake too toxic for fish) has settled to the bottom. If it dries out, all that toxic sediment becomes wind-borne dust.

Dust rising: As California’s largest lake dries up, it threatens nearby communities with clouds of toxic dust

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@Alonealastalovedalongthe responds: Too Big To Fail : Lake Edition

Yeah, that’s…a pretty good description.

@mithriltabby wonders about bioremediation and just how salty it’s gotten.

Hmm, according to Wikipedia it’s currently around 56 grams per liter, which is saltier than the ocean, but not as salty as the Great Salt Lake. But it’s increasing by 3% each year.

Wikipedia: Salton Sea

Working from home to make sure I don’t bring my kid’s flu or wife’s cold …

Working from home to make sure I don’t bring my kid’s flu or wife’s cold to the office. Yesterday I had two visual migraines. Today I had a close call with an errant peanut in the leftovers I heated up for lunch. (Fortunately I didn’t crunch it, and I seem to have escaped any impact from it being on the same plate.)

Yeah, it’s been an interesting week…

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Interesting: Google proposes to standardize the mix of emoji that have gender options & give …

Interesting: Google proposes to standardize the mix of emoji that have gender options & give each a gender-inclusive default.

Example: Person Shrugging can appear alone 🤷 or with a hidden character indicating a man 🤷‍♂️ or woman 🤷‍♀️.

Depending on character & platform, the plain version is sometimes a man & sometimes a woman. Future Android will show an inclusive version when gender isn’t specified & offer all 3 on the keyboard.

https://blog.emojipedia.org/googles-three-gender-emoji-future/

The UI below is not finalized.

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I find it interesting that YouTube backyard/garage science videos span the full range of- here’s …

I find it interesting that YouTube backyard/garage science videos span the full range of

– here’s a cool experiment you wish you could do if you had the equipment/resources/training
– here’s a cool experiment you CAN do
– here’s an experiment you REALLY shouldn’t do, let me show you exactly why we have this safety rule/warning label (ex. here’s what happens if you unwrap a lithium battery!)

…often within the same channel.

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And I really want a specific term for that last subcategory.

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