
The Crackpot Index 29 messages
[ https://math.ucr.edu/home/baez/README.html ]( https://math.ucr.edu/home/baez/README.html ) The Crackpot Index John Baez A simple method for rating potentially revolutionary contributions to physics:
[ https://math.ucr.edu/home/baez/README.html ]( https://math.ucr.edu/home/baez/README.html ) The Crackpot Index John Baez A simple method for rating potentially revolutionary contributions to physics:

By Kermit Rose
·


Ask a spaceman
https://www.pmsutter.com/appearances/2021/02/10/whatisdarkmatterdarkenergyaskaspaceman You might be interested in this series of articles about the beginning and end of the universe. Kermit
https://www.pmsutter.com/appearances/2021/02/10/whatisdarkmatterdarkenergyaskaspaceman You might be interested in this series of articles about the beginning and end of the universe. Kermit

By Kermit Rose
·


New Square Puzzle 2 messages
Hi All Here is a new puzzle that I find interesting. I wonder if this has been thought of before. We have a 3x3 square with only 1s. 1 1 1 1 1 1 1 1 1 Now we can perform a move on one of the rows or c
Hi All Here is a new puzzle that I find interesting. I wonder if this has been thought of before. We have a 3x3 square with only 1s. 1 1 1 1 1 1 1 1 1 Now we can perform a move on one of the rows or c

By kimowww
·


Another factorization algorithm attempt
In the attached Excel file I show my experiment of finding factors of a positive integer by choosing a larger number that has many small factors and using the relationships between the divisors of bot
In the attached Excel file I show my experiment of finding factors of a positive integer by choosing a larger number that has many small factors and using the relationships between the divisors of bot

By Kermit Rose
·


The Crackpot : Answer from astronomy January 15th 2022
Question and answer from Quora Curtis Lindsay curious Earthling, astronomy hobbyist/enthusiast.Updated Dec 28 Does The Milky Way revolve around another galaxy? It’s a dance, really. Some galaxies are
Question and answer from Quora Curtis Lindsay curious Earthling, astronomy hobbyist/enthusiast.Updated Dec 28 Does The Milky Way revolve around another galaxy? It’s a dance, really. Some galaxies are

By Kermit Rose
·


FW: More related to "How many photons am I seeing when I look at a star?"
Hello Marrion. I expect that you will find this interersting. https://www.quora.com/WhenIseeastardidthephotonsenteringmyeyeactuallycomefromthatstar Original Message From: "Quo
Hello Marrion. I expect that you will find this interersting. https://www.quora.com/WhenIseeastardidthephotonsenteringmyeyeactuallycomefromthatstar Original Message From: "Quo

By Kermit Rose
·


[EXTERNAL] Re: [UnsolvedProblems] consequence of expressibility of rational numbers as repeating decimals
>>> “There are efficient algorithms to work out whether r and b have common factors, even for large r and b.” Yes, the Euclidean algorithm in particular comes to my mind!
>>> “There are efficient algorithms to work out whether r and b have common factors, even for large r and b.” Yes, the Euclidean algorithm in particular comes to my mind!

By Flatow, Daniel (NIH/NCI) [E]
·


consequence of expressibility of rational numbers as repeating decimals 3 messages
Recently there was discussion of calculator puzzles, and when the only working operator was division, discussion of repeating decimals. There is an unexpected consequence I want to bring to light. I s
Recently there was discussion of calculator puzzles, and when the only working operator was division, discussion of repeating decimals. There is an unexpected consequence I want to bring to light. I s

By Flatow, Daniel (NIH/NCI) [E]
·


Interesting sequence
While trying to figure out an inconsistency in a factoring algorithm, I'm working on, I noticed the following interesting sequence 1*7 + 9 = 4^2 2*8 + 9 = 5^2 3*9 + 9 = 6^2 4*10 + 9 = 7^2 5*11 + 9 = 8
While trying to figure out an inconsistency in a factoring algorithm, I'm working on, I noticed the following interesting sequence 1*7 + 9 = 4^2 2*8 + 9 = 5^2 3*9 + 9 = 6^2 4*10 + 9 = 7^2 5*11 + 9 = 8

By Kermit Rose
·


Current status of Perfect Cuboid attempt
My next step toward solving the perfect cuboid is to solve the following system of equations [27] [(z*xy*w) or (z*wy*x)] = (j3^2k3^2)*(j4^2k4^2) [28] (2*z*y) = (j3*k4j4*k3) [29] (2*x*w) = (j3*k4+
My next step toward solving the perfect cuboid is to solve the following system of equations [27] [(z*xy*w) or (z*wy*x)] = (j3^2k3^2)*(j4^2k4^2) [28] (2*z*y) = (j3*k4j4*k3) [29] (2*x*w) = (j3*k4+

By Kermit Rose
·


Peculiar properties of the number 12
HI All Here is some peculair properties of the number 12. 1) The 12th composite number is 21 2) 12=3*4 and 12= 3rd prime + 4th prime 2.1) The sum of the 5 first prime numbers is the same as the sum of
HI All Here is some peculair properties of the number 12. 1) The 12th composite number is 21 2) 12=3*4 and 12= 3rd prime + 4th prime 2.1) The sum of the 5 first prime numbers is the same as the sum of

By kimowww
·


Similar question to the perfect cuboid problem 2 messages
The magic square with all square integers resembles the perfect cuboid problem with the exception that the rows and diagonals don't have to add up to another square integer. It'd be interesting the co
The magic square with all square integers resembles the perfect cuboid problem with the exception that the rows and diagonals don't have to add up to another square integer. It'd be interesting the co

By Alex N
·


Can this factoring patteren be extrapolated?
The attached Excel file illustrates some patterns of consecutive integers expressed as differences of squares. Does anyone see repeatable patterns in it? Kermit
The attached Excel file illustrates some patterns of consecutive integers expressed as differences of squares. Does anyone see repeatable patterns in it? Kermit

By Kermit Rose
·


Jane Street Puzzles 14 messages
For anyone interested in some more mathematical/computational challenges, check out https://www.efinancialcareers.co.uk/news/2020/07/howtogetajobatjanestreet. I enjoy working on many of the puz
For anyone interested in some more mathematical/computational challenges, check out https://www.efinancialcareers.co.uk/news/2020/07/howtogetajobatjanestreet. I enjoy working on many of the puz

By Vaskor Basak
·


[EXTERNAL] Re: [UnsolvedProblems] Calculator puzzle 29 messages
Suppose the only operation available was +. A+A = B+B = C+C = D+D = E+E = F+F = G+G = H+H = I+I = J+J = Five of the above would show which digit was 1. Then you would also know which digit was 2. Then
Suppose the only operation available was +. A+A = B+B = C+C = D+D = E+E = F+F = G+G = H+H = I+I = J+J = Five of the above would show which digit was 1. Then you would also know which digit was 2. Then

By Kermit Rose
·


Fw: Chellenging problem 3 messages
 Forwarded message  From: "Lalit Garg" <laleet63@...> To: "UnsolvedProblems" <unsolvedproblems@...> Cc: Sent: Thu, 12 Sep 2019 at 23:42 Subject: Chellenging problem Dear all .Can anyone find
 Forwarded message  From: "Lalit Garg" <laleet63@...> To: "UnsolvedProblems" <unsolvedproblems@...> Cc: Sent: Thu, 12 Sep 2019 at 23:42 Subject: Chellenging problem Dear all .Can anyone find

By Lalit Garg
·


On the magic pill method. Odd perfect number and odd triperfect numbers do not exist. 5 messages
There is a preprint that claims to have solved the odd perfect number problem. Kindly read the preprint in this link and give comments, criticisms, reviews in the comment section below. https://zenodo
There is a preprint that claims to have solved the odd perfect number problem. Kindly read the preprint in this link and give comments, criticisms, reviews in the comment section below. https://zenodo

By tkuria19@...
·


Prime Rich Cubic Polynomials
Two Decades ago, Joe Mott, a professor in the math department at Florida State University published a paper that included the following table. Our List of Primeproducing Cubic Polynomials In Table 6
Two Decades ago, Joe Mott, a professor in the math department at Florida State University published a paper that included the following table. Our List of Primeproducing Cubic Polynomials In Table 6

By Kermit Rose
·


Calculator puzzle 26 messages
Hi All You have a strange calculator which reads A,B,C,D,E,F,G,H,I,J for the integer values. The puzzle is to find the integer values of A,B,C,D,E,F,G,H,I,J by making calculations with the calculator.
Hi All You have a strange calculator which reads A,B,C,D,E,F,G,H,I,J for the integer values. The puzzle is to find the integer values of A,B,C,D,E,F,G,H,I,J by making calculations with the calculator.

By kimowww
·


[EXTERNAL] Re: [UnsolvedProblems] Calculator puzzle
I have an idea several alternate puzzles. So far we have assumed access to the 4 basic operations +, , * and /. What if the calculator were missing some of these operations? For starters, how many ke
I have an idea several alternate puzzles. So far we have assumed access to the 4 basic operations +, , * and /. What if the calculator were missing some of these operations? For starters, how many ke

By Flatow, Daniel (NIH/NCI) [E]
·
