Thursday, May 31, 2012

3.1.6 Open and Closed Loop System

1. Build a support system
2. Add a gear box and a motor
5. It is a closed system
6.Where do you think the gear box would have come to rest had you set the program to cycle 120 times?----- It would either go to were the system was set to or the same place it had started
7.What problems and indecencies might this process cause if used in an assembly mechanism designed to run 24 hours a day 7 days a week?--- It could either wear out the or overrun the motor and cause it to malfunction.
9. Closed loop system
10.How prices would this device be if it were designed to cycle 500 times?-- It would be very expensive cause it would need a very detailed device.
This is the loop that went multiple times.

Conclusion
1. Describe an open loop system that has not already been given as an example.---An open loop system would be the cashier system at the grocery store checkout.
2.Describe a closed loop system that ha not already been given as a example.-- That would be like a elevator (like the ones we are making in class.)

Thursday, March 1, 2012

Activity 3.1.5 Variable Functions

Here is my design that I used to complete the activity 3.1.5 ( Initial)

Here is it with notes and revised.
14- The lioght was on for a total of 5 seconds.

Conclusion-
16- Describe how you might modify the Plus command so that it can reset a variable block to 0 within an program--- You could make it loop in itself.
 
17- What might an industrial or manufacturing keep count or keep track of ? Describe an example-------------It could be a toy company and keeping count of parts or total number of products.
 

Activity 3.1.4 Branch Functions

Here are some of my designs that we used for Activity 3.1.4

Moneyball Questions

1) What was the “Moneyball”approach that Billy Beane and Peter Brandt applied to the Oakland Athletics 2002 season? Was it an “art” or a “science”? What single statistic did they boil their value consideration down to? (In class research/discussion)The moneyball approach that Billy Beane and Peter Brandt was that they would use the on base percentage to determine who makes the team and who is best for the team.  This way of picking players is more of a science but it does have some art to it to make the final decisions of who plays and who doesn't.

2) What is the equation used to calculate OBP? (In class research/discussion)
The calculation of the OBP was
OBP = \frac{H+BB+HBP}{AB+BB+HBP+SF}

3) What is design? (In class research/discussion)
Design is making a detailed plan of something. This movie shows that by how they wanted to use the OBA and make a good team by doing that.

4) Describe 3 situations where movie characters (intentionally or not) applied a step from the PLTW 12 Step Design Process. Explain both the (a) situation as well as (b) how the step is relevant:
1 - When Billy talks to Peter in the first time they talk one on one in the garage Billy is used step 6: Explore the possibilities because he is seeing what is making his team better.

2 -When Billy talks about the outcome and how he lost the last game and how it didn't matter if he did not win the last game this shows step 12: Communicate process and results.

3 - Another way when Billy shows us that he used a step is step 10: Refine the Design. Is when he fired Giambi.  It was part of the system but because he had bad moral he had to fire him.


5) What is “Leadership”? List the three aspects of leadership that we come up with in class. (In class research/discussion)

1 - Direction
2 -Alignment
3 - Commitment


6) Describe 3 circumstances from the story where a character exercised effective leadership:
1 - Billy shows effective leadership when he moved Giambi because it was a better decision for the team.

2 - Peter also shows effective leadership when he travels with the team and has to defend his boss with the awkward questions that he got.

3 - Another way was when Billy fires Peta to get Hatterburg to play first even though it was bullying to get his way it was just as effective either way.


7) According to the movie, what was the A’s record at the start of their winning streak? _76__ : _51__

8) What does this ratio simplify to (roughly)? _.67__ : 1

9) How long was the A’s record setting winning streak? _20__ games won.

10) Given the A’s win/loss ratio at the start of the streak (listed two questions above), what are the odds of winning 20 games in a row? Run the numbers. (In class research/discussion)
The ratio of winning that many games in a row is 0.000037 and it would take 166 years to get a 20 game winning streak naturally.

11) Based on your calculation, do you think the A’s got lucky or was there something to the Moneyball approach?
I think that it was a little bit of of both. I think that the moneyball system worked and helped them a lot but also I think it was some luck.

12) Did Billy Beane strictly apply the “science” of Moneyball to his management approach? Was there an “art” to his efforts as well? Describe a circumstance where he broke from the Moneyball approach to make a positive change for the team.
I think that the moneyball system was mostly all science. I think that when he did this it mostly was always science but Billy did put some art in it like when he fired Giambi. The moenyball technique wanted Giambi to stay but he had to fire him because he didn't help the team.


Bonus Question (look into this if you’ve finished ahead of the class):
Money Ball was originally a book. What author wrote the book? What other books has this author written? Is there a theme to his writing?
Moneyball was originally a book by Micheal Lewis. Micheal Lewis also have written books about sports that can be changed such as poker and other stuff in that nature.

Thursday, February 2, 2012

Basic Programming

This shows my basic programming. It shows how I first set up my program and just me trying to learn the about how to work it.

Flowchart

Here are the flowcharts that were assignment.

Sunday, November 6, 2011

Cardboard Canoe Achievements

 Design Achievements
Define the Problem and Brainstorm Solutions
  1. lightest person in the boat.
  2. have a shape that helps it flow easily through the water (not boxed, but like an actual canoes).
  3. get other teammates in the pool to push the canoe forward.
  4. have a rudder to help steer.
  5. the person in the canoe can balance the boat out.
  6. make the walls of the canoe easy to go over for the paddler.
  7. add a bucket or scoop to get water out of the boat.
  8. use pieces of cardboard to span the width of the canoe with multiple strips to hold it together and keep the structure solid.
  9. add two other sides to keep it stable - trimeran reference.
  10. build a floatable substance to keep it afloat with air inside.
  11. construct a "rope" out of duct tape to tie off the boat.
  12. trimeran - be able to securely fasten the sides on without having to break them off through the door and on the way to the pool.
  13. the design should be as lightweight as possible (buoyancy AND trip to pool)
  14. make the ends and tips of the canoe higher than the others to keep the walls high.
  15. make the bottom open up more and close at the top - like a v.
  16. incorporate origami into it so we can fold it permanently into a good shape, and keep the structure in fair condition.
  17. outside should be completely covered with duct tape.
  18. create handles/grips on back so it can be pushed in water.
  19. use a long stick to push it through water (like gondola).
  20. be conservative about the usage of duct tape - use as little as possible to save for other items.

Criteria & Constraints-
 Criteria-  The boat has to be able to go into the swimming pool, float, and go from one end to another at least once.
Constraints- 1. The boat has to be completely covered with duct tape.
                      2. You can only use two rolls of duct tape.(So be careful about how big your boat is.)
                      3. Boat must fit at least 2 people in it, while still floating.

Sketch Ideas - Draw 3 different sketches for possible designs. Label at least 3 key features for each sketch. Describe the feature's functionality so a viewer understands why the called out feature is important.

Prototype Ideas - Craft physical prototypes (models) of each of your three sketches. Use a notecard or post it note to call out at least one key feature on each model. Post the images to your blog and describe the key feature that you've pointed out on each.


Select an Approach
Negative- Our approach on our design was negative because we did not make side canoes to support it so we could not balance it.
Positive- Our positive is our thinking so when it failed we could turn it straight into a surfboard shape and still compete.
Change- Next time we compete in the annual cardboard canoe challenge I would not make a V- Bottom boat.
Questions- I wondered why our we didn't end up putting the side canoes on the boat. I think it would have helped our problem with balance greatly.

So we ended up going with the V-Bottom design and even though it failed, I am glad we did it. I think I learned a lot because of it and now can learn from our mistakes.

Build Achievements

Build It! - Build your watercraft. Document it with a presentable photo.



The Early Bird Gets the Achievement - We built our boat the fastest.

V-Bottom - We built a V-Bottom boat.

Reflection achievements
Feedback
Positive-
1.Our boat was good because it taught us how buoyant the cardboard actually as with the duct tape.
2. It also taught us how to create a boat that can float. By learning by our mistakes.
3. Our boat did make a come back because it could be made into a surf board.
Negative-
4. Our boat did not float for more than 5 seconds.
5. Our boat did not make it to the other side of the pool and back.
6.  It got water logged way too easily.
Change-
7. I would make it a flat bottom next time.
8. I would use more duct tape than we did.
Questions-
9. How would our boat do if we used the side canoes?
10. If we used a flat bottom would we have done good or just failed.


Redesign - If I were to make another boat I would first start off with a flat bottom.  That seemed to work better the V-Bottom such as ours. I would use a lot more duct tape than we did. I would not only duct tape the outside of the boat I would also duct tape the inside too.  I would try and not leave any open cardboard because I found that cardboard can get extremely water logged.


(Make Your Own Achievement) - If I made an achievement it would be "Duct Tape Regulator". What it would do is make it so you can only use two rolls of duct tape. You can not bring any in so it puts  a limit of duct tape and size of boat.  If you make a big boat with no duct tape it will do poorly so they will have to make there boat know how they can only use two rolls of duct tape.