Category Archives: Uncategorized

How do I come to terms with the DS1821 One chip Thermostat?

First, read this post in order to understand the basics of interrogating the “Normal” Dallas One Wire chips.

The DS1821 requires a different programmer.

I bought mine from a Dr.Anderson

Breadboard Diagram

No reason you could not buy a BasicStamp SX, and load this program in.

Mine came as a breadboard rather than a Through-hole board, but it works good.

I used Xp ;( bummer… to get the thing up and running.

A raw Xp installation needs two drivers from this ZIP file to hit the FTDI chip.

Copy and extract it to some reasonable directory.

Plug the Basic Stamp in and when XP goes a’ shoppin’ for a driver, browse to that directory.

Carry on with Peter Anderson’s tutorial to set the thresholds.

Here is a sample circuit

Khan Academy

All,

I think this is the most important innovation in education i have ever
seen…

Not just “Elearning….or Web Apps….or Open Courseware”

This is the most clever advancement on the field of moving knowledge from
one persons head to anther persons head.

Small , Simple , scalable, “just_barley_good_enough”….

Its called Khan Academy, 2000 Youtube videos, and khanacademy.com with some
practice apps …

Couple of bazillion hits per day, lots of positive impact.

Here a good example of a 6 minute math lesson.

Good example of a “ripped from the Headlines” topic

Very long interview.

Here is a TED talk on the subject. A little bit dreamy, but Chock Full o’ Goodness.

What do you think?

todd

Technical Instructor Survey

Questions about this study may be addressed to the primary investigator Doug Larson at lars4040@d.umn.edu.

Questions may also be addressed to project advisor Kim Riordan by phone: (218)726-7251, email: kriordan@d.umn.edu, or mail: Kim Riordan, Department of Education, University of Minnesota Duluth, Education Endazhi-gikinoo’amaading 150, 412 Library Drive, Duluth, MN 55812-3029.

Alternately, questions may also be addressed to the University through the Research Subjects Advocate Line, D528 Mayo, 420 Delaware St. Southeast, Minneapolis, Minnesota 55455 or (612)625-1650.
Participants wishing to receive a copy of the final report should e-mail the researcher.

The researcher is an FAA-licensed Aircraft Mechanic with Airframe and Powerplant ratings along with an Inspection Authorization. The researcher worked as an aircraft maintenance instructor for an aircraft manufacturer and participated with SAE International on multiple committees in the development of training curricula and standards.

This research is a part of a capstone project (thesis) for a Master of Education from the University of Minnesota, Duluth in December 2010.

How do I understand taxes, when my frame of reference is drinking beer?

I missed the attribution on this, but it is simple greatness.

Suppose that every day, ten men go out for beer and the bill for all ten
comes to $100. If they paid their bill the way we pay our taxes, it would go something
like this:
* The first four men (the poorest) would pay nothing.
* The fifth would pay $1.
* The sixth would pay $3.
* The seventh would pay $7.
* The eighth would pay $12.
* The ninth would pay $18.
* The tenth man (the richest) would pay $59.
So, that’s what they decided to do.
The ten men drank in the bar every day and seemed quite happy with the
arrangement, until one day, the owner threw them a curve.
‘Since you are all such good customers,’ he said, ‘I’m
going to reduce the cost of your daily beer by $20.’
‘Drinks for the ten now cost just $80.’
The group still wanted to pay their bill the way we pay our taxes so the
first four men were unaffected. They would still drink for free. But what
about the other six men – the paying customers? How could they divide the
$20 windfall so that everyone would get his ‘fair share?’

They realized that $20 divided by six is $3.33. But if they subtracted
that from everybody’s share, then the fifth man and the sixth man would
each end up being paid to drink his beer. So, the bar owner suggested that it
would be fair to reduce each man’s bill by roughly the same amount, and he
proceeded to work out the amounts each should pay.

And so:
* The fifth man, like the first four, now paid nothing (100% savings).
* The sixth now paid $2 instead of $3 (33%savings) .
* The seventh now pay $5 instead of $7 (28%savings) .
* The eighth now paid $9 instead of $12 ( 25% savings).
* The ninth now paid $14 instead of $18 ( 22% savings).
* The tenth now paid $49 instead of $59 (16% savings).
Each of the six was better off than before. And the first four continued
to drink for free. But once outside the restaurant, the men began to compare
their savings.
‘I only got a dollar out of the $20,’ declared the sixth man. He
pointed to the tenth man, ‘but he got $10!’ ‘Yeah, that’s right,’ exclaimed the fifth man. ‘I only
Saved a dollar, too. It’s unfair that he got ten times more than I!’
‘That’s true!!’ shouted the seventh man. ‘Why should he
get $10 back when I got only two? The wealthy get all the breaks!’
‘Wait a minute,’ yelled the first four men in unison. ‘We
didn’t get anything at all. The system exploits the poor!’
The nine men surrounded the tenth and beat him up.
The next night the tenth man didn’t show up for drinks, so the nine
sat down and had beers without him. But when it came time to pay the bill, they
discovered something important. They didn’t have enough money between all
of them for even half of the bill!

And that, boys and girls, journalists and college professors, is how our
tax system works. The people who pay the highest taxes get the most benefit
from a tax reduction. Tax them too much, attack them for being wealthy, and
they just may not show up anymore. In fact, they might start drinking
overseas where the atmosphere is somewhat friendlier.
For those who understand, no explanation is needed.
For those who do not understand, no explanation
is possible.

The Tax System – Explained With Beer
[This is great!]

Need Pics

F900
NLG wire entry
Console in cockpit

disconnect corrosion
NLG Chafe at harness
New still of Breakout Box
Photo of Each disconnect at all 3 gear legs
Top of Gear leg Photos
Trouble light to test power (3 of 4)
Need Cover for PDF
copyright
Better 14 pin plug detail a and B
Pic of Resistor at Gear leg

Video of Blocked Wheel Detection.
Stand Up Video Introduction.
Stand up conclusion for videos