Better living through sci-fi: ultrasonic washing

Post by Robert Carnegie
Back in the day, science fiction used to be a lot about
the gadgets - you know, Jules Verne, Tom Swift, Star Wars.
So, where's my ultrasonic washing system?
<http://www.shinva.com/icpd_products_ny/productId=163.html>
This is ultrasonic washing not yet out of the laboratory,
but good for cleaning stuff /in/ the laboratory.
Test tubes, organ extractors, maybe your white coat
if it doesn't tend to shatter all the buttons with
adverse resonance (this may be what holds back
ultrasonic cleaning generally)(could also affect
test tubes).
<http://www.thechillmom.com/2016/12/sharp-ultrasonic-washer.html>
Blogger's very positive review of a stain pre-wash
treatment device. Commenters less satisfied.
Probably not suitable for doing your whole washing
process, unless you wear very, very little -
as I seem to remember people doing on science fiction
covers before I was born. But one pair of trousers
would take... it's not worth it. So maybe that's why
the science fiction cover people didn't bother.
And (also) now -
<http://www.bbc.co.uk/news/technology-39643452>
"Ultrasonic clothes dryer halves drying time"
At last! But it doesn't do the wash. Oh, well.
It may be also one more cause of terror in
household pets.
You also can get an ultrasonic shower.
<http://www.kaijo-shibuya.com/faq/>
But apparently not for a person.
(That seems to be not one of the FAQs, and I think
it should be.)
Next week, I review flying cars. No, I probably don't.
But, excitingly, it appears that I could.

Ultrasonic jewelry cleaners have been available for a long
time:

https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-
keywords=ultrasonic+cleaner

pt

Joe Pfeiffer

2017-04-21 03:07:40 UTC

Post by Cryptoengineer

Ultrasonic jewelry cleaners have been available for a long
https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-
keywords=ultrasonic+cleaner

Ultrasonic case cleaners as well.... this company is a *lot* broader
than jewelry or ammunition:

http://ultrasonicsdirect.com/?gclid=Cj0KEQjwuOHHBRDmvsHs8PukyIQBEiQAlEMW0AyOGBlQP35xhZWjya2_-fHA-i8OZkct98XOANKmHW0aAnHj8P8HAQ

Greg Goss

2017-04-21 14:09:09 UTC

Post by Robert Carnegie
And (also) now -
<http://www.bbc.co.uk/news/technology-39643452>
"Ultrasonic clothes dryer halves drying time"
At last! But it doesn't do the wash. Oh, well.
It may be also one more cause of terror in
household pets.
You also can get an ultrasonic shower.
<http://www.kaijo-shibuya.com/faq/>
But apparently not for a person.

I was reading a description of an event in Russia where hikers behaved
bizarrely, and one hypothesis was that wind vortexes produced
infrasound which in turn created unreasoning terror as it woke them.

Does ultrasound have non-auditory effects on people? I was wondering
about parking lots where every car (at least mine) is using sonar to
see what you're about to back into.

--
We are geeks. Resistance is voltage over current.

Lawrence Watt-Evans

2017-04-21 15:04:01 UTC

I was reading a description of an event in Russia where hikers behaved
bizarrely, and one hypothesis was that wind vortexes produced
infrasound which in turn created unreasoning terror as it woke them.
Does ultrasound have non-auditory effects on people? I was wondering
about parking lots where every car (at least mine) is using sonar to
see what you're about to back into.

When I was younger and could actually hear some "ultrasonic" burglar
alarms, it used to piss me off -- I'd get edgy and irritated around
ultrasound, even the stuff I couldn't hear.

Doesn't happen anymore; somewhere around age 40 I lost enough high-end
hearing that I can't detect ultrasound at all, and it doesn't bother
me now.

--
My webpage is at http://www.watt-evans.com

Kevrob

2017-04-21 16:08:11 UTC

Post by Lawrence Watt-Evans

I was reading a description of an event in Russia where hikers behaved
bizarrely, and one hypothesis was that wind vortexes produced
infrasound which in turn created unreasoning terror as it woke them.
Does ultrasound have non-auditory effects on people? I was wondering
about parking lots where every car (at least mine) is using sonar to
see what you're about to back into.

When I was younger and could actually hear some "ultrasonic" burglar
alarms, it used to piss me off -- I'd get edgy and irritated around
ultrasound, even the stuff I couldn't hear.
Doesn't happen anymore; somewhere around age 40 I lost enough high-end
hearing that I can't detect ultrasound at all, and it doesn't bother
me now.

I remember this item, which uses young folks' better hearing
range to annoy them off your property. An Ig Noble Prize winner!

https://en.wikipedia.org/wiki/The_Mosquito

Kevin R

Mike Van Pelt

2017-04-21 23:19:01 UTC

K-Mart used to be the worse. Fingernails on the blackboard
on fast-forward.

When I was visiting my aunt and grandfather, their old TV
set had a noisy flyback transformer. 17kHz. Sawtooth.
Horrible racket. They couldn't hear it at all, of course.

Post by Lawrence Watt-Evans
Doesn't happen anymore; somewhere around age 40 I lost enough
high-end hearing that I can't detect ultrasound at all, and it
doesn't bother me now.

I suspect it's the same for me; I haven't heard the like in,
oh, 20 years or so.

--
"The urge to save humanity is almost | Mike Van Pelt
always a false front for the urge to rule." | mvp at calweb.com
-- H.L. Mencken | KE6BVH

Quadibloc

2017-04-22 02:49:00 UTC

Post by Mike Van Pelt
When I was visiting my aunt and grandfather, their old TV
set had a noisy flyback transformer. 17kHz. Sawtooth.
Horrible racket. They couldn't hear it at all, of course.

I used to be able to easily hear flyback noise myself. 14 kHz in North America, though.

John Savard

Kay Shapero

2017-04-23 01:39:50 UTC

Post by Lawrence Watt-Evans
Doesn't happen anymore; somewhere around age 40 I lost enough
high-end hearing that I can't detect ultrasound at all, and it
doesn't bother me now.

I suspect it's the same for me; I haven't heard the like in,
oh, 20 years or so.

I'll admit there are advantages in not being able to hear crickets these
days...

--
Kay Shapero
Address munged, try my first name at kayshapero dot net.

Ted Nolan <tednolan>

2017-04-23 01:42:16 UTC

Post by Kay Shapero

Post by Lawrence Watt-Evans
Doesn't happen anymore; somewhere around age 40 I lost enough
high-end hearing that I can't detect ultrasound at all, and it
doesn't bother me now.

I suspect it's the same for me; I haven't heard the like in,
oh, 20 years or so.

I'll admit there are advantages in not being able to hear crickets these
days...

Cuts down on that awful moment of realization when your joke has bombed?

--
------
columbiaclosings.com
What's not in Columbia anymore..

J. Clarke

2017-04-23 03:06:10 UTC

Post by Kay Shapero

Post by Lawrence Watt-Evans
Doesn't happen anymore; somewhere around age 40 I lost enough
high-end hearing that I can't detect ultrasound at all, and it
doesn't bother me now.

I suspect it's the same for me; I haven't heard the like in,
oh, 20 years or so.

I'll admit there are advantages in not being able to hear crickets these
days...

Lucky you. Sometimes I hear crickets when there aren't any crickets. At
least I don't think there are.

Kay Shapero

2017-04-24 05:30:21 UTC

Post by J. Clarke

Post by Kay Shapero

Post by Lawrence Watt-Evans
Doesn't happen anymore; somewhere around age 40 I lost enough
high-end hearing that I can't detect ultrasound at all, and it
doesn't bother me now.

I suspect it's the same for me; I haven't heard the like in,
oh, 20 years or so.

I'll admit there are advantages in not being able to hear crickets these
days...

Lucky you. Sometimes I hear crickets when there aren't any crickets. At
least I don't think there are.

Oh I do have tinnitis, it just doesn't sound like crickets.

--
Kay Shapero
Address munged, try my first name at kayshapero dot net.

Robert Carnegie

2017-04-21 23:23:31 UTC

Post by Lawrence Watt-Evans

I was reading a description of an event in Russia where hikers behaved
bizarrely, and one hypothesis was that wind vortexes produced
infrasound which in turn created unreasoning terror as it woke them.
Does ultrasound have non-auditory effects on people? I was wondering
about parking lots where every car (at least mine) is using sonar to
see what you're about to back into.

When I was younger and could actually hear some "ultrasonic" burglar
alarms, it used to piss me off -- I'd get edgy and irritated aroundexhibit a
ultrasound, even the stuff I couldn't hear.
Doesn't happen anymore; somewhere around age 40 I lost enough high-end
hearing that I can't detect ultrasound at all, and it doesn't bother
me now.

An exhibit at the National Museum of Scotland
shows and sounds the frequencies heard by various
animals - well, probably it only makes the noise
for the human hearing range. Which I took on
trust, because I heard nothing on about half
the scale.

No numbers there, sadly, but I think I stop at
10 kHz or below these days.

Kay Shapero

2017-04-23 01:37:59 UTC

Post by Lawrence Watt-Evans
When I was younger and could actually hear some "ultrasonic" burglar
alarms, it used to piss me off -- I'd get edgy and irritated around
ultrasound, even the stuff I couldn't hear.
Doesn't happen anymore; somewhere around age 40 I lost enough high-end
hearing that I can't detect ultrasound at all, and it doesn't bother
me now.

We found out there were bats in the neighborhood when the kid was small
since she could hear them. Considering how LOUD bats actually are, it's
amazing they didn't keep her awake...

--
Kay Shapero
Address munged, try my first name at kayshapero dot net.

David Mitchell

2017-04-22 04:49:44 UTC