Monday, October 12, 2015

Chapter 50: Six Sensational Discoveries

We take many things for granted nowadays. We have solved many equations and discovered many things. Obviously it has not always been that way. Chapter 50 of The Colossal Book of Mathematics section 12 is entitled Six Sensational Discoveries and it focuses on six discoveries, predictions, and solutions found in 1974.

                  The first discovery listed has to do with the four-color-map conjecture. Before, it was proven that 5 colors are needed for coloring all planar maps so that no 2 regions that border each other in any way have the same color. In November 1974 William McGregor, who was a graph theorist out of Wappingers Falls, New York, created a map that contains 110 regions that cannot be colored with fewer than 5 colors. Though this report was published in the Journal of Combinational Theory, some mathematicians still believe that the theorem will be proved later on.
                 
                  The next discovery was quoted as “the most exciting discovery of 1974” was the discovery that the number e when raised to the power of Õ times the square root of 163 comes out to be an integer. A mathematician from India, Srinivasa Ramanujan, solved the equation by hand and found the value to be 262537412640768743.99999999 and so on. A French program in 1972 went as far as two million 9’s. No one was able to prove that the sequence of 9’s went on forever therefore disproving that it is an integer but rather that is an integral fraction. In May 1974, John Brillo proved that the number is an integer and that the equation equals exactly 62537412640768744. It is still not fully understood how 163 being that it is a prime number makes the expression an integer.

                  In 1973, Richard Pinkleaf of MIT designed a chess-playing program that would learn from its own and its opponents mistakes called MacHic. Pinkleaf would make MacHic play against itself and found that games would be completed in 1.5 seconds on average. After running for 7 months, the program established that pawn to king’s rook 4 is a win for white. Although it could not solve all possible outcomes and situations, it did extend the “game tree” branches so that every branch of the tree would have a position where black should resign. Pinkleaf received a lot of negativity in the chess community to destroy MacHic and its records since it could ultimately win against anyone. The discovery was controversial to the grand masters but also set us on a path for computers in the future.

                  Another controversial discovery was that the special theory of relativity contains a flaw. The theory is described as a meter stick flying horizontally while a plate with a hole in the middle that is parallel to the sticks path and it is moving vertically. The stick and the hole in the plate will eventually coincide. Assumed that the plate has a fixed inertial frame and the stick is moving relatively fast. The result is that the stick will pass through the hole in the plate easily. But when explained from the sticks point of view, in the end, there’s no way a 10 cm stick by 1 m hole will move past without a collision of some sorts. Therefore, the assumption of special relativity is violated.

                  Two lost books written by Leonardo da Vinci were found and published in 1974. Both contained depictions of inventions and tools not previously known to have been created by da Vinci. One was a system of mechanics that we now use for clocks and chains on bicycles. The other was a drawing of a full working sewage and toilet system with da Vinci drawn using the invention as well. The drawings contained an idea for a valve flush toilet, a water closet with continuously running water, and a folding seat.

                  Lastly, there was the discovery/ invention of a simple motor that runs on psi energy. The motor is so simple that even individuals at home could make it. In 1973, Robert Ripoff originally came up with the idea but later passed it on to Henrietta Birdbrain. The steps of creating the motor are as follows, directly from the chapter:
1.         Cut a 3-7-inch rectangle from paper
2.         Make a tiny slot in the paper toward the top center, it must be 3/8th inches long and 1/8th from the top
3.         Bend the paper into a cylinder and glue together
4.         Cut a second slot in the center of the overlap, opposite of the first one
5.         Cut a strip of paper 3/8th inch by 3 inches
6.         Insert a pointed needle twice through the center of the strip no more than 1/4th in. below the bottom edge of the strip
7.         Push the ends of the strip through the cylinder’s two slots
8.         Balance the needle on top of a narrow bottle at a minimum of 4 inches high. (bottle should be glass of a hard plastic)
9.         Place the motor on a book with the books spine running north and south
10.   Sit in front of the motor
11.   Cup hand on the side of the motor close but to a point where you are not touching it.
12.   Focusing on the motor will make it slowly rotate either clockwise or counterclockwise
Having a clear mind while focusing on the motor is key to the experiment. But psi effects as said in the chapter are “elusive, skittish, and unpredictable” (page 681).

                  Although the chapter focuses on discoveries made in 1974 or around that time, all the findings were across different fields of study. It shows how one little thing can have an impact across multiple fields including science, math, and even art. It may not be apparent now but back then it was a big deal and everyday there are discoveries to be made that will have the same impact us now as the ones mentioned in chapter 50 had on the people in the early 1970s.



                  

9 comments:

  1. Chapter 50 was full of interesting tidbits. My favorite was the four-color theorem. I never had thought that it was a mathematical paradox to figure out why you need five colors to make a planar map. It made me curious as to how McGregor figured out how to fill in his 110-region map, or how topographers figured this out in general. Did they have to guess and check? If they did not guess and check, how did they figure out that you couldn’t use less than five colors? There were certainly no computer programs for them to plug variables into. This is one of the reasons that I agree with Hannah that while these discoveries may not be very exciting to us in this day and age of technology, they would have been a larger deal when they were introduced in the early 1970’s.
    My second favorite of the six discoveries was the surfacing of the lost Leonardo DaVinci notebooks. I have always thought it was amazing how ahead of his time he was, and it’s cool how more inventions of his have been unearthed. I think that this discovery was one that was important to historians, scientists, and mathematicians. It is interesting how something so trivial as a notebook could impact so many disciplines.

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  2. Chapter 50 was a very interesting chapter. I really enjoyed reading about the 6 different discoveries because they were all easy to understand (except the four-color theorem for me). I thought the most interesting one was the e raised to pi times the square root of 163. I don't understand how at the end of it, John Brillo proved that it was 264,537,412,640,768,744 instead of 43.9 (where a french program went as far as two million 9's). I also thought the chess discovery by Pinkleaf that white wins with P-KR4 as the first move. I thought it was cool how most of the chess leaders wanted him to destroy MacHic and suppress all the records. Which makes me wonder how smart this machine really was and what other moves were analyzed. The only questions i really had were about the four-color theorem, I just cant understand how the book explained it at all. Other than that the discoveries were a good read.

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  3. Based on this blog, Chapter fifty: Six Sensational Discoveries seemed to be more of an informative chapter rather than one that discusses recreational mathematics. It seemed like it was difficult to find something that was really interesting mathematically because it was more of a history summary than one particular subject. Though each of the six discoveries seemed as important as the next I found it difficult to find one single focus in this particular chapter. It is not necessarily a bad thing that this chapter is so widespread it’s just difficult to discuss my opinion of each discovery before 1974. That being said, I think the most interesting discovery was Richard Pinkleaf’s discovery of a chess program that learned from its opponent’s mistakes of 1973. I found this interesting because of the controversy it caused. Since chess is supposed to be a game of the mind, is it fair to create a computer that can essentially play it better than almost every single human being? I also believe that this discovery links the most with material that we cover in the classroom. All in all, it was an informative chapter with a lot going on, but I did find one topic to catch my interest.

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  4. When reading this summary about Chapter 50 it sounds like the chapter wasn't about just one discovery or how to prove something but rather multiple discoveries. I liked ready this chapter because it was easy to understand. There wasn't anything that I read that made me go back and need to go and reread it again. The discovery that I thought was most interesting that I read was the one that Richard Pinkleaf discovered. It was interesting to read how back in 1974 he created a program that could beat chess in only 1.5 seconds that is incredibly fast for back then. When you think about chess as a game you think about how much thought and time goes into it, and by no means it a fast game, but for a program to do it in 1.5 seconds is incredible. Also even if the program was just for beating chess it, but it was like a guideline for computers. I would like to know why he choose to do chess and maybe not checkers or another game that may require a lot of time and thinking. Also how did he do math to do this did he use a formula to figure this out and that was how he was able to make his program or what did he use to do this.

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  5. Chapter 50, in my opinion was quite interesting. The reason I personally found it so interesting was because it was not just about one subject of mathematics, but about taking mathematics as a whole to make a discovery. As a student, I always am asking "why" we are learning these topics in class. Im asking how these subjects relate to the real world, and I find that chapter 50 does a great job of relating to the real world connections. Another thing i found very interesting is how these people were able to make such discoveries that seem very difficult for the average person to comprehend the process of discovery. The discovery that I took most surprise to was the discovery of a motor that ran on psi energy. The process itself seemed so difficult and is hard to believe that the process itself led to those specific findings. I believe Hannah did a great job summarizing this chapter and I do not believe she left out any important details that should have been listed. Of all chapters, chapter 50 was the most intriguing and easier to understand chapter. I now realize how the different subjects such as mathematics can be used to create something and make new discoveries.

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  6. This chapter was unique from the other as in it gives multiple concepts solved spread across different fields of study within a single chapter. It was about the mathematical discoveries of 1974 by these mathematicians but all separate. I personally enjoyed this chapter being split into little sub ideas and concepts. It was also nice that these discoveries had cool little recreational ties to the real world. I found the psi motor discovery to be the most interesting one to me. I liked the step-by-step explanation of how to create it as well. The simplicity of the motor is fascinating; the fact that anyone can make it at home is very cool and not expected. I also really liked that they found two lost books by Da Vinci which were published. The found the systems from these are extremely crucial to our every day lives. The systems/mechanics for clocks, bicycles, and toilets are all extremely crucial to our lives today and again is very fascinating to me that a man discovered this such a long time ago. Overall, 1974 seemed like a great year for mathematical discoveries and I think you did a very good job of summarizing each of the six discoveries explained in the chapter.

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  7. This chapter caught my interest right away, I was curious to find out what these "sensational" discoveries were. One of the six discoveries that really caught my attention was the one regarding relativity. That topic was one my AP Physics teacher in high school talked about very briefly but I found it to be very interesting. So naturally this portion of the chapter caught my interest. Another one of the discoveries that I found interesting was the one with e raised to the pi power times the square root of 163. I find this interesting but I don't see the importance of this. My favorite discovery however was the one with MacHic. I found this one to particularly interesting because of the computer science aspect it has too it. Computer science being my major this one naturally caught my eye. One of the things that amazes me so much about this is the fact that the program can learn from its one mistakes. For my just trying to imagine writing a program that could learn from itself and improve itself on its own is absolutely mind blowing. I believe you did a good job of summarizing the key points of this chapter and explaining them.

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  8. This chapter caught my interest right away, I was curious to find out what these "sensational" discoveries were. One of the six discoveries that really caught my attention was the one regarding relativity. That topic was one my AP Physics teacher in high school talked about very briefly but I found it to be very interesting. So naturally this portion of the chapter caught my interest. Another one of the discoveries that I found interesting was the one with e raised to the pi power times the square root of 163. I find this interesting but I don't see the importance of this. My favorite discovery however was the one with MacHic. I found this one to particularly interesting because of the computer science aspect it has too it. Computer science being my major this one naturally caught my eye. One of the things that amazes me so much about this is the fact that the program can learn from its one mistakes. For my just trying to imagine writing a program that could learn from itself and improve itself on its own is absolutely mind blowing. I believe you did a good job of summarizing the key points of this chapter and explaining them.

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  9. I would like to point out that the chapter is an April Fool's joke. Martin Gardner wrote this on the April issue of Scientific American in 1975. These six "discoveries" are well known to be fake. There is no map that cannot be colored with 4 colors (or less). If you raise e to that power you don't get an integer. The theory of relativity does not have that flaw. That special motor doesn't exist and the chess program is also made up.

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