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The Politics of ObedienceReview Date: 2008-04-19
A Timeless Call to Resist TyrannyReview Date: 2005-12-31
The "Discourse" is an abstract, universal, naturally reasoned argument passionately calling for widespread civil disobedience to tyranny. Harold Laski later made the observation that "A sense of popular right such as the Friend of Montaigne [Boetie] depicts is, indeed, as remote from the spirit of the time as the anarchy of Herbert Spencer in an age committed to government interference" (see his "A Defence of Liberty Against Tyrants, p 11). Boetie appealed to man's universal nature rather than presumed or real historical precedents resulting in a timeless document that speaks to all ages.
Boetie begins "I should like merely to understand how it happens that so many men, so many villages, so many cities, so many nations, sometimes suffer under a single tyrant who has no other power than the power they give him; who is able to harm them only to the extent to which they have the willingness to bear with him . . .". He asks "Shall we call subjection to such a leader cowardice? . . . If a hundred, if a thousand endure the caprice of a single man, should we not rather say that they lack not the courage but the desire to rise against him, and that such an attitude indicates indifference rather than cowardice? . . . What monstrous vice, then, is this which does not even deserve to be called cowardice, a vice for which no term can be found vile enough?"
Boetie made a profound insight into the nature of the State - all states, including tyrannous ones, are based upon general popular acceptance.
Boetie continues "If we led our lives according to the ways intended by nature and the lessons taught by her, we should be intuitively obedient to our parents; later we should adopt reason as our guide and become slaves to nobody". He says ". . . there can be no further doubt that we are all naturally free", and asks "what evil chance has so denatured man that he, the only creature really born to be free, lacks the memory of his original condition and the desire to return to it?"
"He who thus domineers over you . . . How does he have any power over you except through you? How would he dare assail you if he had no cooperation from you?", he asks, ". . . you can deliver yourself if you try, not by taking action, but merely by willing to be free. Resolve to serve no more, and you are at once freed".
Boetie is saying that tyranny dissolves when the majority of the ruled withdraws its consent and thereby deprives the ruling minority of its support and grudging acceptance. Yet, the ruled seldom accomplish this. Boetie tells us the reason is "habituation":
"It is true that in the beginning men submit under constraint and by force; but those who come after them obey without regret and perform willingly what their predecessors had done because they had to. This is why men born under the yoke and then nourished and reared in slavery are content, without further effort, to live in their native circumstance, unaware of any other state or right, and considering as quite natural the condition into which they are born . . . it is clear enough that the powerful influence of custom is in no respect more compelling than in this, namely, habituation to subjection. It is said that . . . nature . . . has less power over us than custom."
Boetie made a second profound insight into the nature of the State - all states are in essence a hierarchy of privilege that benefits a limited minority. In his illustration of this point, Boetie employes the language of natural law and natural rights.
Boetie also noted the State's use of propaganda and techniques of information warfare (IW) employed upon its subjects to maintain servility. He says "it has always happened that tyrants, in order to strengthen their power, have made every effort to train their people not only in obedience and servility toward themselves, but also in adoration."
In conclusion, Boetie should be considered the first "Gandhi" or advocate of civil disobedience and it should be noted that he grounded his notions in man's natural right to liberty as dictated by natural law. His insights into the State ring true today. Modern Americans allow themselves to be regulated, taxed, and shipped off to invade and bomb their global neighbors to the same extent as their "cousins" across the pond in the United Kingdom - a phenomenon that no doubt has their liberty-loving forefathers rolling in their graves. Boetie hoped education would induce the withdrawal of consent, but as his turn to conservatism lays tribute, it is the weight of the yoke that prompts any reaction.
Resolve To Serve No MoreReview Date: 2000-05-18
An Astonishing Expose of Political PowerReview Date: 1997-03-21
The Will to Bondage and the Refusal to ThinkReview Date: 2006-02-25
Boetie cites historical examples of tyrants who ruled large populations due to the fact that their immediate supporters and the masses of people were immune to thinking that they could do better if their changes or regime changes. Yet, history provided very few examples up to the time of Boetie(the 16th. century). Boetie witnessed some of the excesses of the Reformation and Counter Reformation and the fact that tyrants were only too willing to take advantage of religious hatred to exploit their subjects.
Boetie's work is relevant in the 21st. century. The game of politics has not changed much except for the fact that The State has expanded exponentially since the 16th century. Boetie's argument that thinking only have to withdraw their support to bring the State to its knees which Ghandi did in India. Yet, there are so few surviving examples of this political ploy to expect too much except to write for the record.
What has made the situation worse is that the State has layers of burcaucracy with brainless bureaucrats who staff these powerful offices. These bureaucrats are basically useless and stupid and easily fit James J. Martin's description as "The New Stupid." They are useless which is why the State has made them indespensible.
This book has been reissued only a few times since it was first published in 1577. Yet, the reappearence of this book is a good sign that some people still consider it an important study in understanding the State
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Great book on ferrets.Review Date: 1999-08-11
the perfect guideReview Date: 1998-12-10
JEANS DOES IT AGAIN!!!!!Review Date: 1998-12-28
For Any and All Ferret Owners and Owners to BeReview Date: 1998-12-22
If you just got a Ferret this is the book for you!Review Date: 2000-01-24

Not your regular Consultant typeReview Date: 2003-01-27
Process Consulting is not the typical consulting intervention where 20 somethings come into your organization, do a survey and hand over a thick report after collecting $ per hour !!
Process Consulting is both an art and craft performed by people who intervene in organization systems that are seen as 'human systems' and are sensitive in not inducing 'dependency' of the client. The delicate art is to intervene at the process level rather than the content level and extricate without creating much ripples. Most known consulting deals with 'content' consulting and therefore has more measurale outcomes than the supposedly soft process consulting.
Process consulting is truly empowering and the consultant is a traveller in the process of discovery with the client, constantly asking questions.
Process Consultation Volume II ReviewReview Date: 2003-06-21
Given that process consultation assumes that organizational leaders know their organizations best and are the most appropriate and capable managers of change, it makes sense that organizational leaders understand group processes. Schein emphasizes that diagnosing an organization's problems is intervening to fix them. He provides explanations of the circumstances when process consultation is most necessary. He advises leaders that more time must be spent intervening on how things get done than on what actually needs to get done. "An effective manager must be able to create situations that will ensure that good decisions are made, without making those decisions himself and without even knowing ahead of time what he might do if he had to make the decision alone." (p.39)
Schein provides a useful model for differentiating between the content, process, and structure of organizational challenges and the task and interpersonal aspects of those challenges. He advises that process should always be favored over content; that task aspects should always be favored over the interpersonal; and that structure, while potentially the most transformative element of change, is the most difficult area to address, because people will resist tampering with the comfort structure provides. He also provides explanations on the essential challenges relevant to content and process that every group must face. The lesson he offers for leaders and consultants is that whatever is done to solve a problem must begin with a clarification of the primary task of the group.
Schein devotes considerable space to explaining the ORJI model of intrapsychic processes. (We observe, we react - emotionally, we judge based on our observations and feelings, and we intervene to make something happen.) "The most important thing for managers or consultants to understand is what goes on inside their own heads." (p.63) The trap of ORJI is MIRI, i.e., that we misperceive, inappropriately react, react rationally based on bad data, and intervene incorrectly. To avoid the MIRI trap, we must check our cultural assumptions, our personal filters (see volume I), and our situational expectations based on previous experiences. Schein also provides a clear synthesis of the unfreezing, changing, refreezing model of change and improvement. In unfreezing, the motivation and readiness for change are developed; in changing, new points of view are adopted; and in refreezing, new points of view are integrated to affect changes in the process approaches to tasks.
Schein devotes most of the latter half of his book to explanations and analyses of intervention processes. He discusses the "exploratory", "diagnostic", "action alternative", and "confrontive" models of intervening, how they might initiated and when one might use each. "...The tactics of intervention should focus initially on exploration, inquiry, and diagnosis. Only when the consultant feels that the client is ready to think about alternative next steps is it appropriate to move to action alternatives and confrontive interventions." (p.157) Schein also provides specific kinds of interventions which might fall into any one of these four basic categories of intervention.
This volume, taken with the first, provide not only a clear theoretical framework for understanding organizational change, but also useful tools and approaches for pre-empting organizational roadblocks and addressing organizational dilemmas once they've appeared. These books are essential reading for any leader or consultant.
Process Consultation Volume II ReviewReview Date: 2003-06-21
Given that process consultation assumes that organizational leaders know their organizations best and are the most appropriate and capable managers of change, it makes sense that organizational leaders understand group processes. Schein emphasizes that diagnosing an organization's problems is intervening to fix them. He provides explanations of the circumstances when process consultation is most necessary. He advises leaders that more time must be spent intervening on how things get done than on what actually needs to get done. "An effective manager must be able to create situations that will ensure that good decisions are made, without making those decisions himself and without even knowing ahead of time what he might do if he had to make the decision alone." (p.39)
Schein provides a useful model for differentiating between the content, process, and structure of organizational challenges and the task and interpersonal aspects of those challenges. He advises that process should always be favored over content; that task aspects should always be favored over the interpersonal; and that structure, while potentially the most transformative element of change, is the most difficult area to address, because people will resist tampering with the comfort structure provides. He also provides explanations on the essential challenges relevant to content and process that every group must face. The lesson he offers for leaders and consultants is that whatever is done to solve a problem must begin with a clarification of the primary task of the group.
Schein devotes considerable space to explaining the ORJI model of intrapsychic processes. (We observe, we react - emotionally, we judge based on our observations and feelings, and we intervene to make something happen.) "The most important thing for managers or consultants to understand is what goes on inside their own heads." (p.63) The trap of ORJI is MIRI, i.e., that we misperceive, inappropriately react, react rationally based on bad data, and intervene incorrectly. To avoid the MIRI trap, we must check our cultural assumptions, our personal filters (see volume I), and our situational expectations based on previous experiences. Schein also provides a clear synthesis of the unfreezing, changing, refreezing model of change and improvement. In unfreezing, the motivation and readiness for change are developed; in changing, new points of view are adopted; and in refreezing, new points of view are integrated to affect changes in the process approaches to tasks.
Schein devotes most of the latter half of his book to explanations and analyses of intervention processes. He discusses the "exploratory", "diagnostic", "action alternative", and "confrontive" models of intervening, how they might initiated and when one might use each. "...The tactics of intervention should focus initially on exploration, inquiry, and diagnosis. Only when the consultant feels that the client is ready to think about alternative next steps is it appropriate to move to action alternatives and confrontive interventions." (p.157) Schein also provides specific kinds of interventions which might fall into any one of these four basic categories of intervention.
This volume, taken with the first, provide not only a clear theoretical framework for understanding organizational change, but also useful tools and approaches for pre-empting organizational roadblocks and addressing organizational dilemmas once they've appeared. These books are essential reading for any leader or consultant.
The use of process consultation to improve organizationsReview Date: 2005-05-17
The book is split up in 3 parts. In Part I - Introduction and Overview, which consists of three chapters, Schein introduces the common grounds of managers and consultants (which is the helping orientation), process consultation, and "the process" itself. He introduces a definition of process consultation which "is a set of activities on the part of the consultant that help the client to perceive, understand, and act upon the process events that occur in the client's environment." Whereby he emphasizes that the concept of process central is to understanding consultation and management. "Process refers to how things are done rather than what is done." He continues, "Process is everywhere. In order to help, intervene, and facilitate human problem solving, one must focus on communication and interpersonal processes."
In Part II - Simplifying Models of Human Processes, which also consists of three chapters, Schein examines several models of consultation and argues that the process-consultation model works for consultants as interveners and is potentially most useful for managers. "The most important thing for managers or consultants to understand is what goes on inside their own heads." He introduces the basic ORJI cycle, which is based on the fact that our nervous system observes (O), reacts (R), analyzes, processes, and make judgments (J), and intervenes in order to make something happen (I). He later updates this cycle into a more realistic depiction of the ORJI cycle, through the introduction of 4 traps. Schein than states that the cultural rules of interaction is possibly the most powerful determinant whether a viable helping relationship will be established. In the final chapter of this part, he examines in detail a simplified model of the change process: (1) Unfreezing; (2) changing; and (3) refreezing.
In the final part of the book - The Consulting Process in Action, which is also the longest part of the book with five chapters, the author examines in detail the strategy and tactics of intervention. "The most important point to be made about clients is that the consultant must always be clear who the client is at any given moment in time, and must distinguish clearly among contact, intermediate, primary, and ultimate client." Schein discusses what the consultant or manager can actually say or do to accomplish some of the goals of process consultation. "The strategy and tactics of intervention have to be guided by the ultimate assumptions underlying the helping process." In addition, he provides categories of types of interventions and discusses the possible dilemmas that can arise in the consultation processes. "The skill of intervening is to be so tuned in to what is going on that one's sense of timing and appropriateness is based on the external events, not one's internal assumptions or theories."
Yes, this is a good book on process consultation. I was somewhat concerned when I started reading this book, due to Schein's highly academical background. However, the book has been a revelation. It is highly practical and has good tips on which can be put in practical use. I believe that it useful for both consultants and managers, as the author set out from the start. I believe that the three parts can be read in any order, whereby the last part is possibly the most useful as it is the most practical. Please note that the writing style is now somewhat outdated and academical. Highly recommended to consultants and managers alike.
Process ConsultationReview Date: 2003-06-21
Schein differentiates process consultation from other forms of consultation by first making clear the role of the process consultant, who is not an expert providing information or advice, but rather a coach who seeks to help a client understand and act on events, which happen in the client's organization. Consulting is helping the client to understand problems and to decide how to solve them. The consultant's role is to teach diagnostic and problem-solving skills, not to work on the actual problems.
Communication is a central group process critical for effective functioning of groups and organizations. The process-consultant can help a client understand the communication patterns in a group by assessing who talks whom and how much. Interruptions, who interrupts whom, how much and when can be useful information when attempting to diagnose an organization's shortcomings. Schein includes in this chapter an explanation of the filters, which inhibit or enhance an individual's capacity to communicate effectively. They are: self-image, the image of other people, the definition of the situation, motives, feelings, intentions, attitudes, and expectations. When groups come together to accomplish a goal, certain predictable tensions may undermine the groups ability to solve problems. Individuals in the group may be concerned with their own role in the group, their ability or expectation to influence the group, the need to have the group's goals connect with their own goals, or whether they will be accepted and respected in the group. Sometimes groups need assistance in identifying and processing these tensions before they can concern themselves with the necessary task and maintenance functions required to accomplish their task.
For groups to solve problems they must become good at problem formulation, evaluating solutions, forecasting consequences and testing proposals, action planning, implementing action steps, and evaluating outcomes. Schein offers sage advice for groups wishing to develop their capacity to improve: (1) Don't confuse the symptom with the problem itself (2) Don't evaluate courses of action prematurely - remain open (3) Test proposals using multiple sources and methods, and (4) Plan for action carefully and methodically. Schein offers clear explanations of various decision-making models, which are helpful for a consultant or leader to understand. Groups will function most effectively when the decision-making model is clear and understood. Often models are employed by default, which can alienate and undermine group members and subvert effective improvement efforts. A central failure of leadership is often the gap between what leaders say and how they behave. An effective leaders and process consultants need to become experts in this problem and its potential effects. Awareness of group processes will not only help the leader avoid interpersonal or intergroup problems, but it will also help solve them should they arise. Schein includes useful sets of Likert scales to rate group effectiveness and mature group processes; a model of the stages of group problem-solving; and a continuum of leadership behavior.
Schein's view of the process consultant as a capacity builder parallels his implicit view that organizational leaders need to understand and seek patterns of behavior that downplay coercion and expertise and emphasize participation and differentiated responsibility. This volume and its partner, despite their ages, are still relevant and useful to the leader or consultant.

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Highly recommended and extremely usefulReview Date: 2007-08-16
Finally we have a ToolBox in one peaceReview Date: 2005-03-24
Within the book, Milosevic develops a new role for project management tools and the toolbox in three distinctive ways. First, the book provides a clear roadmap for how to deploy and customize each tool depending on the specific project and company environment. Second, the book goes beyond individual tools by offering a more effective approach, i.e., constructing a toolbox, unique to an organization, which gathers together a predefined set of tools, thus supporting not only individual project management activities and deliverables but also the complete project management process. Finally, the book spells out how to customize the toolbox. Constructing a generic project management toolbox has value, but customizing it to fit a company's competitive strategy significantly enhances that value.
The book content is clearly and logically organized by project management process - initiating, planning, implementing, and closing - and then by practical applications. This helps users locate tools according to use, i.e., to support one or more specific deliverables in the project management process. Also, it reinforces the applications aspect of the toolbox for a standardized, company-specific project management process.
In summary, the Project Management ToolBox is not just the resource for a collection of project management tools and techniques. It offers an extensive set of tools that goes beyond the limits of generic domains and also takes the guesswork out of when and how to use them in order to support the project management process and to deliver concurrent projects as dictated by a company's strategy for competitiveness and profitability. It also describes how to link project goals and practices and the organization's mission, and it offers much value to managers of organizations of any size or endeavour. In short, it is a must-have book for the project manager.
"Project Management Toolbox" Helps Win Projects!Review Date: 2004-06-29
If you think this is just another "Here are the PM process steps" book, then click on by. But if you do, you will miss out on the chance to reach a higher level of excellence in the field of project management that will set you apart from the rest.
Thanks Dragan for a job well done!!
Great reference material for the daily life of a project managerReview Date: 2008-02-09
Good Job ! It is to be used as a reference material, not to be read cover-to cover.
A Practical "Goldmine"Review Date: 2006-05-10
This is a very practical reference book to keep close to your workspace. It contains more than 50 tools you can incorporate into your practice.
When that moment arrives in the project where one of your managers demands some additional piece of information presented in a particular way (as Murphy's Law describes - always at the busiest, most hectic, time), and perhaps it's one of those things you've never personally done before ...
Don't panic, just reach for the "Toolbox".
Each tool is described clearly, most including a table, diagram, or sample of the tool, along with instructions as to best practice use of the tool, e.g.:
o When to use it
o The best place in the project life cycle to use it
o Its benefits (in case you need to "sell" its use within your organization), and
o Advantages/Disadvantages - enabling you to make smarter choices among the tools, and more effective application of the one you select
One suggestion for future editions: I'd like to see more correlation of these tools with the Project Management Institute (PMI)'s PMBOK - both in terms of consistent language and project phasing. (The author does include a short appendix that attempts to do some of this.)
Notwithstanding, I still consider this book a valuable resource for my practice.

Scorecard also balanced for peopleReview Date: 2002-09-02
Scorecard balanced for peopleReview Date: 2002-09-02
Scorecard balanced for peopleReview Date: 2002-09-02
Finally human factor recognised in performance management!Review Date: 2002-08-15
The human element matters mostReview Date: 2002-08-08

Used price: $30.28

I recommend this as a pocket bookReview Date: 2008-04-07
very usefulReview Date: 2007-10-19
Rad Tech's Guide to MRI: Basic Physics, Instrumentation and Quality Control (Rad Tech Series)Review Date: 2007-01-05
Rad Tech's Guide to MRI: Basic Physics, Intrumentation and Quality ControlReview Date: 2005-10-02
Exellent little bookReview Date: 2004-01-13

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Collectible price: $45.00

I have questions about this bookReview Date: 1999-09-21
Great highlight of a nontraditional job.Review Date: 1999-02-02
Voices in the NightReview Date: 2004-06-09
The title and even the subject matter notwithstanding, I hesitate to categorize this book as a volume on railroading. The impressions of the people and their work-lives that are featured in the prose and the photographs are descriptive of all those who labor in the blue-collar jobs of heavy industry. These railroaders have much in common with miners, steel mill workers, grain elevator operators, truck builders, and all the rest on whom our nation's economy depends.
If we must, because of its focus, speak of it as a railroad book, let us be clear about what it is not: There are no ballads or wreck songs here, no folklore about John Henry or Casey Jones, no heroic histories of rail disasters, no financial analyses or statistics of ton-miles hauled or ruminations on the nostalgic era of steam locomotives. What we really have is a book of contemporary photographs, some taken with film and some painted with the brush of words. Both kinds of photos reveal the grass-roots operating railroader and the real, unembellished, and usually uninspiring environment in which he or she labors.
What is the lasting value of this book? It is truly American sociology and history. Not the history of the corporate board room. Not the history of company economics. Not even the technological history behind roller bearings and the huge diesel-electrics that haul unit trains from Powder River coal fields to the ravenous furnaces of east coast electrical generating plants. The history in this book is both more basic and more essential, for it shows us the working conditions of the people who make the machine run, whose work enables the rail corporations to prosper, and whose personalities are shaped by the unsympathetic and unending tasks set for them.
If, Gentle Reader, you react badly to harsh language, to untempered sexual remarks, or to photos including "explicit" centerfolds taped to a yardman's locker door, then perhaps this book is not destined for your reading list. On the other hand, if you find fascination (or perhaps reminiscence) in unexpurgated portrayals of blue-collar working Americans or if you merely wish to understand the demands of such work and how it shapes the people who perform it, then I believe that you will treasure this book as a most worthy addition to your library. Whether you shelve it with your books on sociology, heavy industry, American history, or transportation will be your call. It integrates them all.
By the way, if you find fulfillment with "Railroad Voices," explore "Set Up Running," a similar exploration into the life of a real, unremarkable railroader, an engineman on the Pennsylvania Railroad. Both books show us the real world of the railroad employee with grease on his (or her) clothes, gloves on his (or her) hand, and a union dues deduction in his (or her) paycheck.
Railroad voices - the real thingReview Date: 2000-12-17
The two women have a gift for capturing the true essence of our industry. Ms. Niemann writes in the language of the trainmen's locker rooms, switch shanties and locomotive cabs, a mixture of railroad slang and profanity, but, that is the way it really is.
Lina Bertucci's photos truly convey the sense of never-ending fatigue, boredom, grime, that was (is) part of railroading, then and now. (I also had the pleasure of knowing Ms. Bertucci and some of her female co-workers when they became the first women hired by the Milw RR for train service in the '70s. Those women fought some real barriers to be accepted in what had been a all-male environment.)
Just couldn't put it downReview Date: 1999-03-09

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A seminal work and a core additionReview Date: 2007-07-09
Space shuttle Return to Flight BookReview Date: 2007-04-21
Some of the best shuttle photos everReview Date: 2006-11-06
Best format of its kindReview Date: 2006-07-11
All space enthusiast will relish the idea of being able to acess in book form the photographs taken during this mission. My congratulations to the authors for doing what should have been done a long time ago. The adventure is for "all mankind". I can't think of a better way to enjoy the ride other than by actually doing it! The authors should seriously think about follow on volumns which document the remaining shuttle spaceflights.
Michael H. Cooper
Fascinating book about the space shuttleReview Date: 2006-07-13

Used price: $99.95

Great BotReview Date: 2003-07-14
I would recommend it for everyone.
great bot!!!!Review Date: 2003-08-15
Good for Kids, maybe. For adult hobbyists it comes up short.Review Date: 2004-12-25
First, however, for the sake of parents and uncles and aunts who read this. I think this is a good kit for 12-16 year olds, provided they are really computer savvy and have a long attention span. If your kid is fixing your computer more often than you, he might like this. If already knows how to program, this kit is for him. In any case, you probably need a knowledgable adult to get past the basics with this kit. The kit itself is a little on the cheap side, I'm not sure its worth the price above. (I found it on sale for less than half , but I've seen it advertised for 3 times as much too.) It took me 30 minutes to build it, but I was doing it real carefully. Any kid can probably do it in the same amount of time, although some of the instructions are probably going to be confusing for a kid. (How many 12 year olds know the difference between a worm gear and a spur gear?) Luckily, there are plenty of photos, which make the instructions pretty "kid-friendly". It does require an abnormally small flathead screwdriver that I don't think most houses have lying around. (An eyeglass repair kit would be perfect for assembling this.)
Once you build it and put in the batteries, it starts working right away and you can use the included remote control to play around with it. There's lots of online documenation included on CD. While the documentation is noble in its intent to teach, it covers way more material than a book could practically teach to an early adolescent, and therefore moves a little too fast at times: basic electronics and semiconductors, programming, etc. You might want to supplement this kit with extra books if the child shows interest. The extra project ideas seem like they would be engaging, but except for the most simple they're going to require an adult to help design the circuits unless your child is a whiz kid at electronics.
Okay, now I want to address the "Big Kids", like me, who are interested in intermediate/advanced robotics and buy kits like this to get experience and to later take apart and hack onto other projects. For me, this seemed like a good deal because it includes a BasicStamp 2, which costs more new (~$34)than what I paid for the whole kit. Sadly, its not the same BasicStamp 2. It operates the same electronically, but has a different physical form. This means when you're done with Mr. Sumo, you can't pull his brains out and plug them in to your own breadboard.
Okay, moving along, the engineering uses a smart architecture, where the low level such as PWM for the motors, A/D for the sensors, etc. are handled by their own, dedicated chip, a PIC16C505. Sadly, however, this is an OTP (one-time programmable) chip. This means you can't rewrite any of the low level functions without buying a pin-compatible, surface-mount PIC, reprogramming it, and then surface-mounting it to the PCB. In short, it's a lot of trouble.
The BS2 communicates to this PIC using two I/O lines and sending very basic, 8-bit commands. This is where the robot really limits itself. The control over certain crucial aspects, such as the motor speed, is handled solely by the low-level PIC16C505 and from the BS2 you don't get much access...you can't set the motors to different speeds, for instance, nor redefine what each speed means. (It has speeds 1-4, with 0 being "stopped"). Why would you want to? Because the DC motors weren't matched well when the kit was manufactured, and one overpowers the other, resulting in my robot continually dragging to the right. (Your robot will of course differ.) There's no easy way to fix this, without low-level access to the PWM code.
This is the bad, however. There are a lot of good things about this kit. The software is pretty amazing. The IDE is real easy to use, and it even includes a downloader that is way faster than others I've used (6811 and JStamp downloaders, eg). Plus, it has a "visual" memory map that helps you understand how much of the EEPROM your code is using up...that's a neat feature. Also, the little breadboard, while tiny, has convenient access to 11 I/O lines, as well as +3V from the BS2, +6V from the batteries, and ground.
Communication with the PIC16C505 is easy too, because the author include two convenient serial transmission routines in the program template that you use to build each new program. The sensors and conditioning circuitry and software are designed to eliminate "flutter" that often frustrates me on other projects. There is a bright IR LED, two decent IR sensors, and two CDS light sensors. The motors are small and fast, although geared down to add some much needed torque. With fresh batteries and a little bit of grease on the axles, I would guess this thing can go 60 feet per minute. The machining of the kit is good; everything fits snugly. The bread board has mounting holes for standoffs in case you want to add another deck on top, and the belly has tabs machined for mounting an RC servo. (Although, its a mount I've never seen, and none of my servos fit it.)
Well, this review is so long I ought to bind it and sell it on this site..the long and short: probably good for kids...with the right adult mentor. For adult hobbyists it's arbitrarily limited (as opposed to RoboSapien which is designed to be hacked), but still could be used as a test bed for small circuits. For the price I payed, I'm happy, but I wouldn't have gone much higher. (Then again, I'm a poor college student...)
The Best Hobby Robot You Can Buy!Review Date: 2002-12-03
The good points about the robot were the remote control and how easily a BS2 could be added to the robot so that I could write my own programs and try them out. Even with the [poor] wheels and "caster" it was probably the best experimenter's robot out there. The information on the CD-ROM was great, although I wish it was available on paper (costs a lot to print out all the information).
Myke seemed to have learned from the first robot and the Sumo Bot is fantastic. It now has a very solid sheet metal chassis (with a front scoop), it runs by 4 "AA" batteries and has a caterpiller bulldozer like track that allows it to run over just about any surface. The robot is really built like a bulldozer, it will last a long time.
Best of all, the optional pieces from the original kit, the BS2 and AppMod are built into the robot. All you have to do is put the CD-ROM into your PC, download the programs and BS2 programming software, conenct the robot to the PC using a serial cable and you can start writing your own programs or adding your own hardware.
This review probably reads like a sales pitch, but I've had my Sumo Bot for a week now and I LOVE IT! It's very robust, easy to use and program and best of all, it's fun.
Brad
awsome soooooo coolReview Date: 2004-11-05

Used price: $2.32
Collectible price: $35.75

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Murray N. Rothbard's insightful introduction places this pioneering work in historical context and in the pantheon of Libertarian classics.