I'm sure some of you have wondered what the Doktor does when he's Doktoring. Well, I participate in cutting edge scientific research! Research that presses against the supple sexy body of scientific knowledge until it giggles and give up some of it's sweet wisdom filled... wait, what was I talking about?
Oh yeah! My research! Well I've decided to release this film that shows just one of the many areas I'm involved in. I hope you find it insightful!
Showing posts with label mathematics. Show all posts
Showing posts with label mathematics. Show all posts
Wednesday, April 14, 2010
Monday, March 29, 2010
Yeah for 28!
Today I turn 28 years old!
28 is a composite (non-prime) number whose divisors are 1, 2, 4, 7, 14, and of course 28.
28 is the second perfect number, the first being 6 and the third being 496 (with I am dubious about the prospects of living too). A perfect number is one which is equal to the sum of it's proper positive divisors, specifically 1+2+4+7+14=28.
Since 282+1=785, and the largest prime factor of 785 is 157, which is more than 2x28, 28 is a Størmer number.
28 is a harmonic divisor number, since the harmonic mean of it's divisors is an integer. Specifically: 6/(1+1/2+1/4+1/7+1/14+1/28)=3.
28 is a happy number, meaning that the sum of the squares of it's digits will recursively reduce to 1, like so:
22+82=68
62+82=100
12=1
28 is a triangular number (meaning you can stack a 2D triangle with 28 items), a hexagonal number (meaning you can make a regular hexagon with 28 items), and a centered nonagonal number (meaning you can make a regular nine-sided polygon, or nonagon, with 28 items).
28 is a member of the Padovan sequence, which consists of the sum of the second and third preceeding members of the sequence, with the first three members defined as 1. Specifically: 1, 1, 1, 2, 2, 3, 4, 5, 7, 9, 12, 16, 21, 28...
28 is a Keith number, which means it appears in a Fibonacci-like sequence which starts with it's own digits. Specifically: 2, 8, 10, 18, 28...
28 is the atomic number for nickel.
28 is the fourth magic number, meaning that an atomic element with 28 nucleons will be more stable and resistant to radioactive decay.
28! = 304888344611713860501504000000
Messier object 28 is a globular cluster in the constellation Sagittarius approximately 19,000 light years away, and was the first globular cluster discovered to contain a millisecond pulsar.
NGC 28 is an elliptical galaxy located in the Phoenix constellation.
Texas was the 28th state to join the United States.
Woodrow Wilson was the 28th President of the United States, serving in that capacity during World War I.
The 28th Precinct in New York City is a largely residential community in Harlem.
The 28th episode of the Twilight Zone was "A Nice Place to Visit", which is about a gangster that dies and thinks he's gone to Heaven.
Iron Man v1 #28 was published in 1970. This is the 2nd panel on the 8th story page:
This is all good, but next year I get to be a prime!
28 is a composite (non-prime) number whose divisors are 1, 2, 4, 7, 14, and of course 28.
28 is the second perfect number, the first being 6 and the third being 496 (with I am dubious about the prospects of living too). A perfect number is one which is equal to the sum of it's proper positive divisors, specifically 1+2+4+7+14=28.
Since 282+1=785, and the largest prime factor of 785 is 157, which is more than 2x28, 28 is a Størmer number.
28 is a harmonic divisor number, since the harmonic mean of it's divisors is an integer. Specifically: 6/(1+1/2+1/4+1/7+1/14+1/28)=3.
28 is a happy number, meaning that the sum of the squares of it's digits will recursively reduce to 1, like so:
22+82=68
62+82=100
12=1
28 is a triangular number (meaning you can stack a 2D triangle with 28 items), a hexagonal number (meaning you can make a regular hexagon with 28 items), and a centered nonagonal number (meaning you can make a regular nine-sided polygon, or nonagon, with 28 items).
28 is a member of the Padovan sequence, which consists of the sum of the second and third preceeding members of the sequence, with the first three members defined as 1. Specifically: 1, 1, 1, 2, 2, 3, 4, 5, 7, 9, 12, 16, 21, 28...
28 is a Keith number, which means it appears in a Fibonacci-like sequence which starts with it's own digits. Specifically: 2, 8, 10, 18, 28...
28 is the atomic number for nickel.
28 is the fourth magic number, meaning that an atomic element with 28 nucleons will be more stable and resistant to radioactive decay.
28! = 304888344611713860501504000000
Messier object 28 is a globular cluster in the constellation Sagittarius approximately 19,000 light years away, and was the first globular cluster discovered to contain a millisecond pulsar.
NGC 28 is an elliptical galaxy located in the Phoenix constellation.
Texas was the 28th state to join the United States.
Woodrow Wilson was the 28th President of the United States, serving in that capacity during World War I.
The 28th Precinct in New York City is a largely residential community in Harlem.
The 28th episode of the Twilight Zone was "A Nice Place to Visit", which is about a gangster that dies and thinks he's gone to Heaven.
Iron Man v1 #28 was published in 1970. This is the 2nd panel on the 8th story page:
This is all good, but next year I get to be a prime!
Sunday, November 22, 2009
The Nighty News: Hickman Math
I finally picked up a copy of Jonathan Hickman's The Nightly News a few weeks ago, and actually got around to reading it yesterday. I became a Hickman fan when Pax Romana came out, and that is still my favorite work of his, but The Nightly News was excellent.
Anyway, in issue 3 there is a bit where Hickman presents this formula for calculating if you're college degree was worth it or not. I was intrigued. I set down the book and busted out my calculator to see if his equation matched my own feelings. Here is the excerpt from issue 3 (click to enlarge):
I put in numbers that are fairly pessimistic, meaning they would give me the lowest possible EDU. I ended up with EDU=3.06, which I think is pretty damned good. For those that don't know or remember, I have a PhD in Aerospace Science and am very happily employed as a research physicist for the Army.
Post your number in the comments if you dare!
Bonus pic: Me reading The Nightly News with two of my babies.
Anyway, in issue 3 there is a bit where Hickman presents this formula for calculating if you're college degree was worth it or not. I was intrigued. I set down the book and busted out my calculator to see if his equation matched my own feelings. Here is the excerpt from issue 3 (click to enlarge):
I put in numbers that are fairly pessimistic, meaning they would give me the lowest possible EDU. I ended up with EDU=3.06, which I think is pretty damned good. For those that don't know or remember, I have a PhD in Aerospace Science and am very happily employed as a research physicist for the Army.
Post your number in the comments if you dare!
Bonus pic: Me reading The Nightly News with two of my babies.
Monday, January 8, 2007
The Official Units of the Moon
NASA & 13 space agencies have agreed: the official mathematical units on the Moon is the Metric System.
The neatest thing about the article? The map that shows what morons still use English units. They even put the Moon on the map, see how it's all gray...
The neatest thing about the article? The map that shows what morons still use English units. They even put the Moon on the map, see how it's all gray...
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