Very fast rise time generator...

[Rod Speed]

Max Demian <max_demian@bigfoot.com> wrote

Rod Speed wrote
NY <me@privacy.net> wrote

English probably could do with a plural form of you;

It already has a couple of informal ones, yous and you-all for yanks.
I used to say \'you two\' when asking the parents say where they would
be at a certain time etc, but my step mother didn\'t like that style.

Ancient Greek has three \"number\" forms: singular, dual and plural.

English does too, you, you two and yous or y\'all

She
was a rather silly woman tho, hated the use of the word holidays for
university students, insisted on vacation for some reason.

That\'s correct British English.

But none of us are british or english.

> Time away for recreational purposes is always holiday

Thats what uni holidays are.

(vacation in the US).

Time away from school is holiday, from college or university is vacation,

Not here.

and work is holiday or leave.

Similarly a communal eatery is canteen in school, refectory in a
monastery or college/university, and canteen in a factory. In an office
it is usually canteen too, but some call it the staff restaurant to be
posh.

 

[Carlos E.R.]

On 2023-02-16 23:46, Commander Kinsey wrote:

On Tue, 14 Feb 2023 18:50:12 -0000, Carlos E. R. <robin_listas@es.invalid> wrote:
On 2023-02-14 16:29, Commander Kinsey wrote:
On Mon, 13 Feb 2023 10:06:09 -0000, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-02-11 10:34, Commander Kinsey wrote:
The little green float tends to work.  The density of the acid must
change with charge state.  A leisure battery I have sat next to me is
green until it drops to about 75%, then it turns black indicating it
wants charged.  Presumably this float is slowly moving, and could
be put
in a tube to show the % charge.

I\'ve only once known a battery to have a green float but be
useless.  It
was my car\'s previous battery, which had been flattened many times.
Even after a 2.5 hour drive with a functional alternator, tuning it
off
for a few minutes it refused to start the car.  The AA mechanic said
she\'d never seen a battery do that.

You need a proper hydrometer, and use it on each of the six battery
cells.

https://images.app.goo.gl/hpXcQ4TmEDsnH1Xz9

The integrated one, with balls, only measures, and roughly, one cell.

Why roughly?  And unless the battery\'s royally fucked, that should be an
indicator of charge.

Because it is either the ball floats or not. Or two or three balls.
Whereas a proper hydrometer as a graduation all the way from zero to a
hundred. Analogical.

Surely the ball floats more or less depending on  density of the acid.
Imagine yourself floating in a lake.  Now float in the sea, now float in
the dead sea.  The denser the water, the higher you float.  The ball
will do the same.

Actually, no.

You can not read how high a ball floats. But it is very easy to read the
scale in a graduated hydrometer, which is designed for that.

And then as it only measures one cell, it can be totally wrong. That
cell may be good, but another three cells can be totally bad and you
don\'t know.

I wasn\'t wanting to know if a cell was bad, but how fully charged a good
battery is.

For which you need to read the density in all cells and do calculations.

--
Cheers, Carlos.

 

[Rod Speed]

On Thu, 23 Feb 2023 04:56:33 +1100, Max Demian <max_demian@bigfoot.com>
wrote:

On 22/02/2023 16:50, The Natural Philosopher wrote:
On 22/02/2023 14:43, rbowman wrote:
On Wed, 22 Feb 2023 08:00:33 -0000, Commander Kinsey wrote:
On Tue, 14 Feb 2023 00:42:13 -0000, rbowman <bowman@montana.com
wrote:
On Mon, 13 Feb 2023 20:37:43 -0000, Commander Kinsey wrote:

Rotary took fucking ages to dial long distance. And a very long
time
to dial the UK emergency 999. Should have been 111.

That was designed to prevent cats from dialing the emergency
services.
At least the US went for 911.

It would be very unlikely for a cat to happen to dial 1 repeatedly.

Never had a cat, did you?

with tone dialling its a cinch

Do cats purr in DTMF?

Ask the cat in here that now calls itself Animal,

 

[Max Demian]

On 15/02/2023 15:27, NY wrote:

On 15/02/2023 14:56, Commander Kinsey wrote:

There is only one correct answer here.  Down for on.  Think about it.
Read a book.  You start from the top of the page and go to the bottom
as you read more.  Down is always more.  Right is always more
(accelerator/brake).

I gather than BBC studios use the opposite convention to ITV for the
direction of linear faders on mixing desks: one convention requires you
to push the fader away from you to increase the volume or brightness and
the other requires you to pull it towards you.

The one that I found counter-intuitive was the twist grip on handlebars
for the speed of a motorbike or electric wheelbarrow. I expected to push
the top of the grip away from me to increase speed, so as to bend your
wrist palm-downwards. But it\'s the opposite way (bend your wrist back),
because if you are thrown forwards over the handlebars on the bike, you
want the throttle to close rather than to open. Bloody painful keeping
your wrist bent *backwards*, even just for a few minutes when walking
behind an electric wheelbarrow.

That\'s because you have to pull on the throttle cable to open the
throttle. (I suppose the cable could feed into the bottom of the grip,
in which case it would be the other way round).

Twist grip gear changes on pedal cycles are the other way round: top
away to shift up a gear. Something to do with how the Sturmey-Archer hub
gears are made.

On that topic, Mac and Linux are correct with their dialog boxes, and
Windows is wrong.  (Only time I prefer a Mac (kid\'s toy) or Linux
(geek\'s toy) to Windows).

I\'m not sure which I\'d say was right or wrong with the OK / Cancel
buttons. But having been brought up with Windows, I still catches me out
that Linux is the opposite (not \"wrong\") way.

What about water taps? Most turn anticlockwise to unscrew the tap so as
to increase the pressure, but a few go the opposite way.

That\'s because in a simple tap screwing it down (with a right hand
thread) screws down on the washer.

And there seems
to be no consensus as to whether the cold or the hot tap should be on
the left:

I think the convention is for hot to be on the left. My kitchen mixer
tap was that way, but when a plumber replaced it he connected it the
other way for no apparent reason.

doesn\'t matter as long its separate taps with coloured
inserts,

I reversed the inserts, but they are just C and H and aren\'t clearly
visible. I have just have to remember which way it is.

but some modern mixer taps, which rotate to vary temperature
and rock back and forth to vary water flow, have no indication as to
which way to rotate to get hot water - and sometimes you have to choose
a rotation arbitrarily and wait: if the water remains cold and never
runs warm after a while, try the other way

My bathroom basin mixer tap is like that, where you move it to the left
for hot. There is s split red/blue indicator under the lever, but you
can\'t see it from a normal standing position. I\'ve just got used to it.

--
Max Demian

 

[Peeler]

On Thu, 23 Feb 2023 08:19:53 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

<FLUSH the abnormal trolling senile cretin\'s latest trollshit unread>

--
Pomegranate Bastard addressing the trolling senile cretin from Oz:
\"I repeat, you are a complete and utter imbecile.\"
MID: <mpelth1engag7090piqvqp85pco7nphoal@4ax.com>

 

[Carlos E.R.]

On 2023-02-15 01:45, rbowman wrote:

On Tue, 14 Feb 2023 22:48:01 +0000, SteveW wrote:

I don\'t know any Spanish. I only did French and Latin at school.

Ah, French... Amazon Prime has a series \'Three Pines\' that is set in
Quebec. I couldn\'t figure out one of the detective\'s names until I saw it
written Jean-Guy. I would have picked up on Jean-Paul or Jean-Marie but
Jonkey left me puzzled.

I searched for that series yesterday night, out of curiosity, but Amazon
Prime here doesn\'t carry it. :-(

--
Cheers, Carlos.

 

[Peeler]

On Thu, 23 Feb 2023 07:49:13 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

<FLUSH the abnormal trolling senile cretin\'s latest trollshit unread>

--
williamwright addressing Rodent Speed:
\"You are an insecure blathermouth with an inferiority complex.\"
MID: <j08dicFcuptU1@mid.individual.net>

 

[Max Demian]

On 15/02/2023 14:52, NY wrote:

On 15/02/2023 11:40, Max Demian wrote:
On 14/02/2023 18:31, SteveW wrote:
On 14/02/2023 17:35, Vir Campestris wrote:
On 12/02/2023 21:42, Mark Lloyd wrote:
I know someone who can\'t tell left from right without touching
herself.

When I was a kid I used to look as the small mole on my right hand
to remind myself. It didn\'t help that I when I as taught to write it
was \"No, the other hand\"... These days I have no trouble with left
or right, nor port and starboard, or clockwise, or any of the others.

Turnwise and Widdershins? Yes the latter is a genuine wo

Deiseil is more common for clockwise, or sunwise, sunward. (These
alternative names are only needed when discussing the origin of the
direction of clock hands.)

Widdershins is the only one I *have* heard of. Turnwise, Deiseil,
Sunwise/Ward - can\'t say I\'ve ever heard of those.

Clockwise is all very well until you see a clock like this

https://cdn.shopify.com/s/files/1/0602/4056/0354/products/OldPeculierBackwardClock-TheTheakston-29-07-22-4530.jpg?v=1660143292

which is a very \"peculier\" way of telling the time. The one I have used
a conventional self-contained quartz clock mechanism (ie no after-market
1:1 gears to reverse the direction) which suggests that they had the
mechanisms specially made - maybe with the stepper motor wired the
opposite way round.


It had never actually occurred to me until now that \"clockwise\" is the
same way that the sun appears to move in the sky, so the hour hand will
follow the sun (except at double speed). I must have been singularly
incurious to accept what \"clockwise\" meant without relating it to the
direction of movement of the sun.

I\'m not entirely convinced with the explanation for the direction clock
hands move. It\'s supposed to be because of sundials, but clock faces are
usually vertical, and vertical sundials move the other way. (There\'s one
on the side of some old alms houses near where I live.)

I think it was just chance, or perhaps a famous clock had hands moving
deiseil. (Adjacent cogs in a gear train move in opposite directions and
it just happened that the one with a twelve hour period was going
deiseil.) In any case, the first clocks with dials has the *dial*
rotating and the hand (with fingers I think) was stationary. No idea
which way they rotated.

--
Max Demian

 

[Carlos E.R.]

On 2023-02-16 23:47, Commander Kinsey wrote:

On Tue, 14 Feb 2023 16:22:23 -0000, Ralph Mowery <rmowery42@charter.net
wrote:

In article <op.10c3zwxrmvhs6z@ryzen.home>, CK1@nospam.com says...

You need a proper hydrometer, and use it on each of the six battery
cells.

https://images.app.goo.gl/hpXcQ4TmEDsnH1Xz9

The integrated one, with balls, only measures, and roughly, one cell.

Why roughly?  And unless the battery\'s royally fucked, that should be
an indicator of charge.

It is often possiable for one of the cells failing but the other cells
can be good.  Part of my job was to check around 100 batteries each
month.  I would check the voltage of each cell and the specific gravity
of the liquid.  I have seen one or two cells fail but the others were
ok.

I was interested in the charge state of a good battery, not if it was
fucked.

You need to read the charge in every cell. If the cell that happens to
have the balls say \"green\", 100 charged, but there is another cell with
no balls that says \"red\", 10% charge, and the other 4 cells you do not
know, but happen to be 80% charged, then the actual charge of the
battery is equal to the charge of the worst cell, ie, 10% (depending on
the intended usage).

--
Cheers, Carlos.

 

[NY]

On 22/02/2023 17:56, Max Demian wrote:
> Do cats purr in DTMF?

You need two of them to get *dual* tone. ;-)

 

[ke...@kjwdesigns.com]

The goal for this approach is 2kW average primary energy usage of all forms, ie 48kWh/day.

https://en.wikipedia.org/wiki/2000-watt_society

 

[Don Y]

On 2/17/2023 1:53 PM, whit3rd wrote:

Household use is NOT use. Household plus transit plus agriculture
plus all the other essentials that aren\'t on the house\'s electric meter, is
the energy use total that\'s being considered.

But, reference to \"essentials\" misses the point. Much energy is
consumed (\"wasted\") on things that are NOT \"essential\". By drawing
attention to TOTAL energy consumption, it forces you to look at
the things that use energy in ways that aren\'t necessary.`

I\'ve got a pair of self-powered speakers attached to this PC.
SWMBO *occasionally* uses them to watch a (short) video. All
of the energy they use while she is NOT watching one is wasted.
Do we really need to see the \"power indicator\" reassuring us
that they *will* produce sound, when called upon? Refrigerator
proudly tells us the status of the ice maker, freezer, etc.
each time we open the door (yet another \"does the light go out
when the door is closed\" issue!) How strenuous would it be for
that display to come on when I press one of the control buttons
instead of being on BEFORE such action?

Car has a light in glovebox -- but, to save on the cost/labor of
installing a switch to activate it when opened, it simply stays
on with the ignition. Do I really think the designer sat down
and figured the amount of energy required to make and install
(and maintain) that switch vs. the energy \"wasted\" illuminating
a CLOSED glove box?

 

[rbowman]

On Mon, 20 Feb 2023 10:09:55 +0000, The Natural Philosopher wrote:

The spanish/mediterranean style houses built of brick stone and concrete
with massively thick rooves, tiled floors and overhanging eaves are the
most energy efficient way to live in temperatures over 30°C as the
Romans and the Moors discovered.

At night airflow cools the masonry, and by day the masonry cools the
airflow

The adobe construction in the US southwest has similar properties. The
energy efficiency may be a byproduct. Sun-dried mud bricks require thick
walls and overhanging eaves prevent them from washing away in the
infrequent but intense rains.

Trees are sparse and most aren\'t suitable for lumber. Stone was used in
other areas like Chaco Canyon where sandstone was abundant. There may have
been more timber in the period but from today\'s conditions they would have
had to go as much as 60 miles to find suitable timber for the vigas.

You use what you have. Sod construction wasn\'t very pleasant but when
you\'re on the Great Plains with plenty of sod and no trees you make do.

 

[John Larkin]

On Wed, 22 Feb 2023 19:55:46 +0100, Peeler <trolltrap@valid.invalid>
wrote:

On Wed, 22 Feb 2023 09:03:29 -0800, John Larkin, another obviously brain
dead, senile BIGMOUTH, blathered:


Never had a cat, did you?

You STILL have no one in RL who wants to listen to you and your endless
bullshit, senile sucker of troll cock?

I you guys behaved like this in real life, in your local pub, you\'d
get home on a stretcher. Of course, you don\'t have the balls to be
this obnoxious in real life, or to even use your real name on usenet.

Tell us your name. Show us some electronics. Post an original
schematic.

Oh, lookie! lowbrowwoman, the resident grandiloquent bigmouth, has a fan!
LOL One bigmouth sticking to another bigmouth! No surprise! LOL

No schematic, no electronics, no surprise.

Do people still say LOL? How quaint.

 

[Rod Speed]

On Wed, 15 Feb 2023 22:27:09 +1100, Max Demian <max_demian@bigfoot.com>
wrote:

On 15/02/2023 01:02, Rod Speed wrote:
On Wed, 15 Feb 2023 11:36:31 +1100, John Larkin
jlarkin@highlandsnipmetechnology.com> wrote:
On Wed, 15 Feb 2023 10:16:13 +1100, \"Rod Speed\"
rod.speed.aaa@gmail.com> wrote:
On Wed, 15 Feb 2023 07:27:02 +1100, NY <me@privacy.net> wrote:

English probably could do with a plural form of you;

the distinction between familiar and formal is less important.

We do have one here, \'darl\', even when referring to a man.

dawlin
That\'s what ours is derived from.

and honey in the south, by salesgirls for example. That\'s sort
of nice.

That\'s a form of address, not the same as you. People might say, \"Can
you come here,\" but not \"Can darling come here.\"

(In Lancashire/Manchester shop girls call you \"luv\",

Not just those, I was struck with that sort of thing
often used in that magnificent reality TV series
\'24 houra in A&E\' by medical professionals and
with teachers with kids in UK schools.

> which is a bit of a degradation of meaning.)

 

[Peeler]

On 20 Feb 2023 15:37:13 GMT, lowbrowwoman, the endlessly driveling,
troll-feeding, senile idiot, blabbered again:

The adobe construction in the US southwest has similar properties. The
energy efficiency may be a byproduct. Sun-dried mud bricks require thick
walls

They shouldn\'t be as thick as you, though, you thick endlessly driveling
senile chatterbox.

--
More typical idiotic senile gossip by lowbrowwoman:
\"It\'s been years since I\'ve been in a fast food burger joint but I used
to like Wendy\'s because they had a salad bar and baked potatoes.\"
MID: <ivdi4gF8btlU1@mid.individual.net>

 

[John Larkin]

On Wed, 22 Feb 2023 17:56:33 +0000, Max Demian
<max_demian@bigfoot.com> wrote:

On 22/02/2023 16:50, The Natural Philosopher wrote:
On 22/02/2023 14:43, rbowman wrote:
On Wed, 22 Feb 2023 08:00:33 -0000, Commander Kinsey wrote:
On Tue, 14 Feb 2023 00:42:13 -0000, rbowman <bowman@montana.com> wrote:
On Mon, 13 Feb 2023 20:37:43 -0000, Commander Kinsey wrote:

Rotary took fucking ages to dial long distance.  And a very long time
to dial the UK emergency 999.  Should have been 111.

That was designed to prevent cats from dialing the emergency services.
At least the US went for 911.

It would be very unlikely for a cat to happen to dial 1 repeatedly.

Never had a cat, did you?

 with tone dialling its a cinch

Do cats purr in DTMF?

Seriously, a purr may be an echolocation frequency chirp.

 

[ke...@kjwdesigns.com]

On Wednesday, 15 February 2023 at 07:17:57 UTC-8, Klaus Vestergaard Kragelund wrote:

On 15-02-2023 16:09, Jan Panteltje wrote:
On a sunny day (Wed, 15 Feb 2023 15:31:58 +0100) it happened Klaus Vestergaard
Kragelund <klau...@hotmail.com> wrote in <tsiqcv$2tidt$2...@dont-email.me>:

On 14-02-2023 22:54, Uwe Bonnes wrote:
John Larkin <jla...@highlandsnipmetechnology.com> wrote:

The diodes Inc/Zetex avalanche transistors are still available.

Higher rates are hard to reach with avalache transistors. What frequency
does the original poster need?

I can do with below 1MHz, just need the very high risetime

Relais contact?

30V - big cap - relais - your cap

It wont be that fast, from what I read wetted contacts can reach 10ns,
not in picoseconds

Mercury wetted relays can do picoseconds.

For example: https://fkh.ch/wp-content/uploads/2014/07/1999_Neuhold_Mercury-Switch-Pulse-Generator_High-Voltage-Engineering-Symposium.pdf

kw

 

[The Natural Philosopher]

On 20/02/2023 15:37, rbowman wrote:

On Mon, 20 Feb 2023 10:09:55 +0000, The Natural Philosopher wrote:


The spanish/mediterranean style houses built of brick stone and concrete
with massively thick rooves, tiled floors and overhanging eaves are the
most energy efficient way to live in temperatures over 30°C as the
Romans and the Moors discovered.

At night airflow cools the masonry, and by day the masonry cools the
airflow

The adobe construction in the US southwest has similar properties. The
energy efficiency may be a byproduct. Sun-dried mud bricks require thick
walls and overhanging eaves prevent them from washing away in the
infrequent but intense rains.

Trees are sparse and most aren\'t suitable for lumber. Stone was used in
other areas like Chaco Canyon where sandstone was abundant. There may have
been more timber in the period but from today\'s conditions they would have
had to go as much as 60 miles to find suitable timber for the vigas.

You use what you have. Sod construction wasn\'t very pleasant but when
you\'re on the Great Plains with plenty of sod and no trees you make do.

Exactly, I dont think adobe construction is that bad either. Surprised
they never lit a fire and turned it into bricks

--
\"Women actually are capable of being far more than the feminists will
let them.\"

 

[John Larkin]

On Wed, 22 Feb 2023 14:01:37 -0500, bitrex <user@example.net> wrote:

On 2/21/2023 8:53 PM, Don Y wrote:
On 2/21/2023 6:07 PM, bitrex wrote:
On 2/21/2023 7:32 PM, Don Y wrote:
On 2/21/2023 3:29 PM, Carlos E. R. wrote:

[variations in licensing/registration requirements]

Wow.

What throws many Americans is the notion that they are still
\"in the same country\" and expect laws, requirements, language,
etc. to remain constant (or, at least, consistent!).  And,
it\'s not like there\'s a book/pamphlet to alert you to the
changes you\'d not expect!

[You (spain?) likely are keenly aware when you travel to
another european \"state\" and, likely, aware that the rules
likely change.]

In Boston, you wouldn\'t ask for a \"milkshake\" as that\'s
just \"flavored milk\"; what you really want is a frappe
(with ice cream!).  You\'d buy your liquor at a \"liquor
store\" (where I grew up, it was called a *package* store
or \"packy\" in the vernacular).  And, growing up, the
beer and wine sections of the refrigerated coolers
(need a different license to sell \"spirits\") would
be COVERED at 8:00PM (illegal to sell after 8!).

I think \"frappe\" is pretty out-of-fashion unless one\'s really of the
old New England breed, I don\'t hear it much among people under 50 even
ones who were born here. Nobody\'s going to be confused as to what\'s
being asked for if someone from elsewhere orders a \"milkshake.\"

I\'ve not lived (or *been*) in beantown in 40+ years.  So, my
experiences, there, are admittedly dated.  :

I do recall a pamphlet prepared (tongue-in-cheek) for foreign
students with things like \"traffic lights are only advisory\"...

\"Blinker\" and \"packy\" are still common, though

And rotaries?  Turnpikes?  Parkways?

[Around here, all would be met with blank stares]



Yep, rotaries are still rotaries, but there\'s only one \"turnpike\" and
it\'s called the Mass Pike.

Highways are highways, not \"freeways.\" I don\'t hear \"parkway\" too much.
South Boston is \"Southie\", East Boston is \"Eastie\", Roslindale is
\"Rozzie\", Somerville can be known as \"Sommie\" (uncommon), Cambridge &
Somerville are \"Camberville\" (common).

A freeway is a road that you can drive continuously without
interruption, excepting crashes and traffic jams and floods and
earthquakes.

Mo is from Scituate. After she goes back for a visit, she talks funny
for a week or two until she re-learns English.