magnetic field

[Fred Bloggs]

Bill Sloman wrote:

Mac <foo@bar.net> wrote in message news:<pan.2004.11.25.07.09.20.71996@bar.net>...

On Tue, 23 Nov 2004 23:11:47 +0000, petrus bitbyter wrote:


"Jim Thompson" <thegreatone@example.com> schreef in bericht
news:l4u6q0prvkgvibsqp6cr2bff7jcbvhjjem@4ax.com...


big snip


Who repaired the light switch of the freezer? Apparently the light did not
go off when the freezers door was closed.

petrus bitbyter


So the story features a parrot capable of reasoning and conversing
interactively with a human, but the part that you find implausible is that
the parrot can see in the dark?

Interesting. ;-)


Tecumseh Fitch, who knows a bit about animal language

http://www.st-andrews.ac.uk/~wtsf/

has been known to say that the African Grey Parrot is the best
non-human speaker around, and can do quite a bit better than mere
parroting.

Okay- well that puts it head and shoulders above "Clarence" on the
evolutionary scale.

 

[petrus bitbyter]

"Mac" <foo@bar.net> schreef in bericht
newsan.2004.11.25.07.09.20.71996@bar.net...

On Tue, 23 Nov 2004 23:11:47 +0000, petrus bitbyter wrote:


"Jim Thompson" <thegreatone@example.com> schreef in bericht
news:l4u6q0prvkgvibsqp6cr2bff7jcbvhjjem@4ax.com...
A young man named John received a parrot as a gift. The parrot had a
bad attitude and an even worse vocabulary. Every word out of the
bird's mouth was rude, obnoxious and laced with profanity. John tried
and tried to change the bird's attitude by consistently saying only
polite words, playing soft music and anything else he could think of
to "clean up" the bird's vocabulary. Finally, John was fed up and he
yelled at the parrot. The parrot yelled back. John shook the parrot
and the parrot got angrier and even ruder. John, in desperation, threw
up his hand, grabbed the bird and put him in the freezer.

For a few minutes the parrot squawked and kicked and screamed. Then
suddenly there was total quiet. Not a peep was heard for over a
minute. Fearing that he'd hurt the parrot, John quickly opened the
door to the freezer. The parrot calmly stepped out onto John's
outstretched arms and said "I believe I may have offended you with my
rude language and actions I'm sincerely remorseful for my
inappropriate transgressions and I fully intend to do everything I can
to correct my rude and unforgivable behavior." John was stunned at the
change in the bird's attitude. As he was about to ask the parrot what
had made such a dramatic change in his behavior, the bird continued,
"May I ask what the turkey did?"

HAPPY THANKSGIVING!


...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.


Who repaired the light switch of the freezer? Apparently the light did
not
go off when the freezers door was closed.

petrus bitbyter


So the story features a parrot capable of reasoning and conversing
interactively with a human, but the part that you find implausible is that
the parrot can see in the dark?

Interesting. ;-)

--Mac

I always try to keep my mouth shut about things I don't understand. I heard
witnesses about talking parrots. Some told me they speak more reasonable
then a lot of humans. I had no opertunity to check it out so I keep my
opinion - suppose I have one - behind my teeth. But nobody ever told me
about a parrot that can see in the dark. I also know that even the most
sensitive equipment cannot make any light visible if there is none. So there
raised some question about the technical side of this story. That's the side
I understand and can talk about with some authority.

(I could add the advise to do the same to the members of this newsgroup. But
I leave it as it makes no sense. The ones that would follow up such an
advise do so already. All others will not do so and keep doing what they did
already.)

(I guess I know the reason we never hear a parrot in the group. Think they
don't understand electronics.)

petrus bitbyter



---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.799 / Virus Database: 543 - Release Date: 21-11-2004

 

[Pig Bladder]

On Fri, 26 Nov 2004 00:12:30 +0000, petrus bitbyter wrote:

I always try to keep my mouth shut about things I don't understand. I heard
witnesses about talking parrots. Some told me they speak more reasonable
then a lot of humans. I had no opertunity to check it out so I keep my
opinion - suppose I have one - behind my teeth. But nobody ever told me
about a parrot that can see in the dark. I also know that even the most
sensitive equipment cannot make any light visible if there is none. So there
raised some question about the technical side of this story. That's the side
I understand and can talk about with some authority.

Um, do you understand, "It's a joke"?

(I could add the advise to do the same to the members of this newsgroup. But
I leave it as it makes no sense. The ones that would follow up such an
advise do so already. All others will not do so and keep doing what they did
already.)

(I guess I know the reason we never hear a parrot in the group. Think they
don't understand electronics.)

Oh, hell! I could name about four right off the top of my frontal lobe!
--
The Pig Bladder From Uranus, still waiting for
some hot babe to ask what my favorite planet is.

 

[George Jetson]

"Doug Schultz" <Douglas_Schultz@hotmail.com> wrote in message
news:7yspd.339170$%k.306131@pd7tw2no...

"John Larkin" <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote in
message news:rsc9q0linmkq0r86h6sdmd32jti2dg7hnm@4ax.com...
On Wed, 24 Nov 2004 12:15:25 GMT, "Tim" <midwestmeteor@earthlink.net
wrote:

GREAT PRICE, too bad its all made in China and no here.

We need jobs for people here, thanks for helping, your a good shopper
too bad your kids won't be able to buy anything there because they
won't have a job.



The fact is that people in China and Indonesia and Africa need jobs,
too. In fact, they need them a lot worse than we do, for basic things
like food and medicine and keeping their kids alive. Did you buy an
American made DVD player, TV, bench vise, or dinner plates? Grapes?
Flowers? Lumber?

My kids will do fine, and I hope those Chinese and African kids will,
too. People are people.

John



Dont mean to butt in here but I also think that if you shop at Walmart you
deserve the Poverty level wage you are going to end up with.
If you support poverty wages then no one who pays real wages can compete.
so your wage will eventually be a poverty wage as your sector of
employment becomes swallowed in the eddie.

Doug

That's no eddy mate, we're all doing circles around the bowl. I dont
believe the public will ever do whats for the common good, buying the
cheapest one posible is going to get us all.
--
They can have my command prompt when they pry it from my cold dead fingers.

 

[Tom MacIntyre]

On Sun, 21 Nov 2004 11:08:50 -0800, "Richard Crowley"
<rcrowley7@xprt.net> wrote:

Watson A.Name wrote ...
Mssrs. Crowley and Linden are trying their best to bastardize
the thread with some discussion about PBS sponsors. Maybe
they're too immersed in politics to think about other things, like
what I'm talking about that's on-topic.

Excuse me, but you, Mr. Name are the one who injected PBS
and their schockumentaries into the thread in your original post.
I'm getting really tired of leftist politics tainting Usenet.

It's your option to access Usenet, tired as you may be of having to
tolerate others' opinions. Just like TV...if you don't like
it...change the channel.

It is better to light a single candle than to curse the darkness.

Tom

Just
showing you what it is like to get some from the other side.
Stay on topic and I'll never make another political posting.

 

[repatch]

On Mon, 22 Nov 2004 03:36:08 -0800, Watson A.Name - "Watt Sun, the Dark
Remover" wrote:

The program and the URLs I gave showed the cheap China imports problem
isn't the only. or even the major problem with Wal-mart. The problems are
that they are under employing people - below poverty level wages - and
they make it impossible for most workers to afford health benefits. And to
top it off, the supercenters devastate neighborhoods by undercutting the
mom-and-pop stores, thereby chasing them out.

This isn't bias and truth bending. The facts and figures are there.

If somebody shoots someone with a gun who do you blame: the person who
pulled the trigger, or the gun?

Walmart is only doing what the CONSUMERS want. If consumers want low
prices Walmart will give it to them.

Do you REALLY think that if Walmart DIDN'T do it noone else would?

That is what capitalism IS, live with it.

 

[John Larkin]

On Fri, 26 Nov 2004 05:46:21 GMT, "George Jetson"
<George.Rkindig@neo.rr.com.Jetson> wrote:

"Doug Schultz" <Douglas_Schultz@hotmail.com> wrote in message
news:7yspd.339170$%k.306131@pd7tw2no...

"John Larkin" <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote in
message news:rsc9q0linmkq0r86h6sdmd32jti2dg7hnm@4ax.com...
On Wed, 24 Nov 2004 12:15:25 GMT, "Tim" <midwestmeteor@earthlink.net
wrote:

GREAT PRICE, too bad its all made in China and no here.

We need jobs for people here, thanks for helping, your a good shopper
too bad your kids won't be able to buy anything there because they
won't have a job.



The fact is that people in China and Indonesia and Africa need jobs,
too. In fact, they need them a lot worse than we do, for basic things
like food and medicine and keeping their kids alive. Did you buy an
American made DVD player, TV, bench vise, or dinner plates? Grapes?
Flowers? Lumber?

My kids will do fine, and I hope those Chinese and African kids will,
too. People are people.

John



Dont mean to butt in here but I also think that if you shop at Walmart you
deserve the Poverty level wage you are going to end up with.
If you support poverty wages then no one who pays real wages can compete.
so your wage will eventually be a poverty wage as your sector of
employment becomes swallowed in the eddie.

That makes no sense. Employers compete for employees from a common
pool of available workers, and they use wages and benefits to convince
people to work for them and to stay. Wal-mart can't just decide to pay
arbitrarily low wages; they can only get workers by offering them a
better deal than they could get somewhere else. I noticed that most of
the Wal-mart floor workers were either very young or very old; both
are probably grateful for having a better job than anybody else
offered them.

Doug


That's no eddy mate, we're all doing circles around the bowl. I dont
believe the public will ever do whats for the common good, buying the
cheapest one posible is going to get us all.

Whose common good? Just the people in the US, or all the people in the
world?

Once everybody becomes middle-class, imports will no longer have an
economic advantage. The cheap-imports-from-cheap-labor situation is
just a transient condition. Europe, Japan, and Korea were once
cheap-labor suppliers.

Being a low-cost exporter is a positive step on the way to being
developed and wealthy. China and India and Mexico are there now; too
bad most of Africa isn't developed enough yet to be a cheap-labor
supplier.

John

 

[Winfield Hill]

Mac wrote...

You have got to be kidding me. ...

There's got to be something more useful to discuss than this line of
thought. Well, I did enjoy the mention that no one "grabs" a parrot.
Not twice anyway!


--
Thanks,
- Win

 

[Watson A.Name - \"Watt Su]

"Winfield Hill" <hill_a@t_rowland-dotties-harvard-dot.s-edu> wrote in
message news:co9m770149a@drn.newsguy.com...

Mac wrote...

You have got to be kidding me. ...

There's got to be something more useful to discuss than this line of
thought. Well, I did enjoy the mention that no one "grabs" a parrot.
Not twice anyway!

--
Thanks,
- Win

Thanks. That came from me - one who has had personal experience!

 

[Pig Bladder]

On Sat, 27 Nov 2004 02:51:19 -0800, Winfield Hill wrote:

Mac wrote...

You have got to be kidding me. ...

There's got to be something more useful to discuss than this line of
thought. Well, I did enjoy the mention that no one "grabs" a parrot.
Not twice anyway!

But where else is a guy gonna find guys who are so bleeding smart,
yet whose noses are so easy to pick?

--
The Pig Bladder From Uranus, still waiting for
some hot babe to ask what my favorite planet is.

 

[Rich Grise]

On Sat, 27 Nov 2004 02:51:19 -0800, Winfield Hill wrote:

Mac wrote...

You have got to be kidding me. ...

There's got to be something more useful to discuss than this line of
thought. Well, I did enjoy the mention that no one "grabs" a parrot.
Not twice anyway!

Do you mean, "let's get back to all work and no play", or do you mean,
"let's do something besides beat the stupid parrot joke to death"?
Or maybe, "None of the above"? ;-)

Cheers!
Rich

"But the parrot wasn't dead! The turkey was!" "No, no. That's dead _horse_!"

 

[Clarence]

"Mac" <foo@bar.net> wrote in message
newsan.2004.11.27.16.29.42.176957@bar.net...

On Sat, 27 Nov 2004 02:51:19 -0800, Winfield Hill wrote:

In fact I probably shouldn't have replied to Bill Sloman at all.

Never a GOOD idea!

 

[Bill Sloman]

Mac <foo@bar.net> wrote in message news:<pan.2004.11.27.06.54.50.352050@bar.net>...

On Fri, 26 Nov 2004 00:12:30 +0000, petrus bitbyter wrote:


"Mac" <foo@bar.net> schreef in bericht

<snip>

It's not a story. It is a joke. It is not meant to be realistic, and the
main tip-off is the ability of the parrot not only to speak, which parrots
are well-known to do, but to hold an intelligent conversation and to
reason at the same level we might expect from a human.

Some humans.

As Fred Bloggs has pointed out, some African Grey parrots seem to be
able to outperform ostensibly human posters on this user-group.

------
Bill Sloman, Nijmegen

 

[Ross Herbert]

On Wed, 16 Mar 2005 08:30:46 GMT, Rikard Bosnjakovic <bos@hack.org>
wrote:

Greetings

As a newcomer to the wonderful world of electronics, I have recently
setup a minor electronics lab in my home and started to build a few
things. My tools and equipment exists of standard components (resistors,
capacitors, ICs, etc), soldering iron, a bunch of veroboards and a
multimeter. I do not, however, own an oscillator or any of those more
expensive tools like PCB-etching equipment and such. Atleast not yet.

As stated above, I'm using veroboards (stripboard and breadboard is a
synonyme for the same thing, i think) for building my circuits. I also
own a licence of Electronic Workbench (Multisim and Ultiboard are the
ones I use most frequently). However, since I do not own any etching
equipment Ultiboard is of less use for me since it can only do
PCB-layout/routing. I have contacted the developers to hear if there was
any possibility to make Ultiboard output to veroboards, but regretfully
enough UB is designed for PCB only, was the answer.

1. Is there any layout/routing-application that is able to output
layouts for veroboards? I have only found two cheap shareware-programs
on Google. Even if they work, they were terribly tedious to use (limited
amount of components etc). Is there no commercial or fully developed
program anywhere? A great plus would be if the program could read the
format that Multisim saves to, thus allowing me to save time by not
designing the whole circuit all over.

None that I know of. If you think about it, Veroboard is intended for
prototyping only in order to verify a circuit design. Of course it
does have it's use as final board for a one-off design but essentially
it is used only for prototyping. It would not be viable for any
software designer to develop a layout package for Veroboard since the
ultimate goal for any product manufacturer who uses an electronics
module is to go to a standard pcb layout.

2. When constructing on veroboards, I often have the need in cutting the
boards to smaller shapes and I've found that it's pretty cumbersome
since I haven't found any good tips of how to do it the right way. For
new boards, I could take a small saw and shape it up without much
problems. But for new circuits that I haven't done before, cutting the
boards could lead to a too small board in the end, requiring me to start
it all over again.

Yes, the cut-after-fitting-components does make it difficult and is
only recommended for very small boards maybe up to 50 x 50mm. With
this approach I always cut with a 32tpi hacksaw blade with the blade
teeth flat across the copper strips or in between strips as the case
may be. You have to ensure that the board is held rigidly and this may
be difficult and also make sure that you use both hands to guide the
hacksaw frame and use small forward motions to start. When you have
scored the board to about half thickness it will then snap quite
cleanly such that a file will tidy up any irregulariies. Of course you
can cut to a greater depth to make it even neater.

Therefore I build new circuits on unmodified boards, so I get the whole
space to begin with and cut it down later. But here's the problem. When
I cut (not using a saw), the board usually tends to break up and it
seems it doesn't want to be cut in straight line. I've tried a long and
sharp knife, placing it between the lines of copper, and pushed hard.
But the board still tends to break up in pieces near the end.

Has anyone got a tip / link for me where I can read about how to cut
boards without any breaks?


The best way to construct larger boards is simply by proper planning

on paper. I draw out the physical shape of the components about 2x
scale on paper so that they occupy a logical arrangement according to
the circuit schematic. This can take a good deal of experience based
upon the characteristics of the individual components you are placing.
This knowledge only comes with years of experience so I can't give you
specific instruction in this regard. You can use lined paper so the
lines simulate the copper traces or you can use linear graph paper on
a 0.1" grid to draw it up full size. You need to work out where to cut
traces and where to add wire links to suit your design. Use a soft
black pencil and remember an eraser is your best friend The more time
you spend on the paper layout the easier it will be to add the
components to a piece of board which is pre-cut to its finished size.

 

[Yukio YANO]

Rikard Bosnjakovic wrote:

Greetings

Has anyone got a tip / link for me where I can read about how to cut
boards without any breaks?


Thanks in advance.

Next new/used toy ! E-Bay for a used Oscilloscope ~ $25/50 +s/h

Then breadboard a "555" timer for a signal generator, cost ~ $2.00
biggest expense ! $1.50 for a 9 Volt battery

Use a Jeweller's Saw ! Looks like a Coping Saw, only a little more refined

Find under Jewellery Making or Lapidary Supplies
"Michael's". "Hobby Lobby", "Walmart ? " ~$10.00 + blades

I have'nt bought a new one in years so Price is only a guess.
I've used a Dremel tool with 1" Abrasive cut-off wheels, but the
Jeweller's is much more elegent,

Yukio YANO

 

[Rob Fell]

Noone wrote:

The output resistance from
all of that is very high (>10MOhm, my Multimeter cant read it, it is so
high).

An op-amp is an active device - you can't simply measure it's output
resistance with a multimeter.

All with the same result, my voltage is stable, but my PIC reading is
unstable. And my resistance at the pic input is still very high. So my
question is:

I'd start with these key (IMO) questions;
Which voltage is stable? The supply to the pressure transducer or the
voltage to the A/D input pin?
How unstable are your PIC readings?
Have you ensured your PIC A/D has suitable reference voltages?

 

[Roger Johansson]

"Steven McGahey" <steven.doesntneedthis.mcgahey@virgin.theISP.net (remove
the obvious bits)> wrote:

I've read this thread with a lot of interest, as I have a small bit of
surface-mount work to do, but no experience working with these tiny
components.

I would have thought that when working with these components, you would
have to use a different approach, and try to keep the component cool
(as it'll fry otherwise), but this thread seems to suggest otherwise.

Modern components are very seldom destroyed by heat.
Components are made to withstand soldering heat for 10 seconds, or so.

If you fail to make a good soldering joint in 5 seconds, wait for a few
minutes before you make a new try, to let the component cool down.



--
Roger J.

 

[John Larkin]

On Tue, 30 Nov 2004 21:41:40 -0800, "Larry Brasfield"
<donotspam_larry_brasfield@hotmail.com> wrote:

"John Larkin" <jjlarkin@highSNIPlandTHIStechPLEASEnology.com
wrote in message news:a7lpq05v0jvt6vqbg354pm22iubjgkma8j@4ax.com...
Surface-mount parts are designed to be soldered in a reflow oven,
where the entire loaded board gets heated above solder-melt
temperature for a minute or so. Most parts don't mind. I just solder
them by hand, and it pretty much always works.

Hand soldering can be very hard on SMD ceramic capacitors.
The high temperature gradiant created by applying heat suddenly
at one end can fracture the ceramic. This can lead to excess noise
or a tendency to break down at a lower than rated voltage as
moisure gets into the crack(s). The insidious aspect of this kind
of damage is that it can show up in the field, quite some time
after the parts perform alright in initial testing.

At Siemens Ultrasound, we learned this the hard way, then had it
confirmed by at least one vendor's examination of abused parts.

Maybe the parts are getting better, but I've never seen that happen,
and some of our boards have lots of parts on the bottom,
hand-soldered. I hand-solder all kinds of parts in the lab, and can't
recall ever damaging one, unless it wasn't on a PCB, like soldered
directly to a connector or on a copperclad breadboard, where it is
possible to apply some bending forces and rip off the end caps.

We have virtually zero returns from the field due to damaged passives.

John

 

[Steve]

Larry Brasfield wrote:

Hand soldering can be very hard on SMD ceramic capacitors.
The high temperature gradiant created by applying heat suddenly

Get a decent temperature controlled soldering iron, run it at 600F/315C
and use low melting point solder. No need for preheating or any other
messing about.

On some boards chips can be tricky to remove because they are glued in
place.

Steve

 

[H-Man]

On 1 Dec 2004 13:51:36 -0800, Chris Uhl wrote:

Hi All,

SNIPPED

I am using sample code found here:
http://www.keithley.com/main.jsp?action=topproductlinks&mn=DRIVERLINX&link=Downloads
within the link named: VB.NET example for Single Value AI and AO with
DriverLINX

Please respond to this message, or contact me at chris.uhl#usask.ca
(change # to @) if you have any thoughts or need clarification.

Thanks,
Chris.

Chris,
The exapmle code looks like it's specifically for analog I/O. I've never
worked with the stuff outlined here, but there are definite references to
analog values in your code. Look at the example code for the board you
have, it looks like this one is for polled stats or something like that,
and work from there.

You don't have a VB problem, you just seem to be programming for the wrong
board type.

Personally there are way better ways to do what you're looking to do, but
it would involve changing out the displays. If you want and can justify a
better display option, locate your local Red Lion Controls distributor,
they have displays for almost everything.
--
HK