Archive for the ‘Math Humor’ Category.

All the Dirt on Number 5

Numerical Sex PositionsMy Number Gossip website is becoming very popular. Recently the number of visits increased significantly. I decided to use my Google Analytics software to check the sources of this traffic.

The first spike in visits came after the link to my website appeared on the site PointlessSites.com. Never underestimate bad publicity.

But the real increase was due to the following description of my website at CollegeHumor.com:

Don’t even get me started on number 7! Number gossip. All the dirt on your favorite numbers, like 5.

The author of that quote is right. I did dig out some dirt on 5. Prime number 5 is secretly preparing to apply for a Nobel Prize in genetics. It is hiding its two twin brothers, 3 and 7, from the public eye, so that no one will notice that although 3 and 7 are twin brothers of 5, they are not twin brothers of each other. This situation is unique. While 5 has always been a member of two pairs of twin prime brothers, none of the tabloids has picked up on this.

And don’t even get me started on number 7! I haven’t put it on my website, but everyone knows that 7 is a cannibal, because seven eight nine.

After the link on CollegeHumor appeared, the number of visits jumped 20-fold. The dirt is as good as gold. Maybe I should rethink my approach and put more scandal into my website. Better yet, I should add sex to it. Actually, I already have sex on my website — as part of the word “sextuple”.

No, I won’t cheapen my numbers just for publicity. I will not add numerical sex positions 69, 71, and 88 to my website. If you’re interested in those, check out the cartoon above, which is the work of the famous geek Randall Munroe in his xkcd comic. But he’s such a true geek that he doesn’t really know what 71 is and probably never heard of 88. (Feel free to call me, Randall.)

My website is about math. I admit that I have sprinkled a few entries on my site that might be considered non-mathematical, but those are my guilty pleasures. Numerical sex positions, however, are not one of them.

Share:Facebooktwitterredditpinterestlinkedinmail

Political Analysis of USA-Russia Relations through Russian Anecdotes

Disclaimer. I chose the jokes for analysis, not for entertainment. Some of them might be unpleasant to read. Proceed at your own risk.

Russians love jokes and especially politically incorrect ones. They have anecdotes about many nations, but when I was growing up back in Russia, Americans were treated nicely in these jokes. Americans were used as a background for Russians to laugh at themselves. Here is a very old joke about Russian political realities; this was the version that was told during Jimmy Carter’s presidency:

A Russian and an American are discussing freedom of speech. The American says, “We have freedom of speech. I can stand in front of the White House and shout that Jimmy Carter is an idiot and nothing will happen to me.c
The Russian replies, “I can also stand in front of the Kremlin and shout that Jimmy Carter is an idiot and nothing will happen to me either.”

Or this joke about harsh living conditions:

A Russian and an American describe their houses to each other. The American says, “I have a modest house, three bedrooms, a dining room, a living room, a family room, a kitchen, and a guest room.”
The Russian replies, “I have the same thing, just without the inner walls.”

The following old joke is becoming less and less amusing as the airline service in America increasingly resembles what Russians have always had:

An American is flying on a Russian flight. A beautiful stewardess approaches him and asks, “Would you like to have dinner?”
The American replies, “What are my choices?”
“Yes or No.”

What I am interested to learn from these jokes is whether Russia was preparing for a war with the US during the cold war period. In most cultures, killing a person is a bad thing to do. That means you need an argument to give to solders when you’re asking them to kill other people. Usually governments are not proposing that killing is a good thing to do in general, but rather rationalizing why this particular enemy needs to be killed. For example:

  • We need to defend ourselves.
  • It is needed for the greater good. For example, they are enemies of the state.
  • They are less human than we are. For example, they are pigs or infidels.
  • God told us to do this.

Looking at Russian jokes from that period, it’s clear that they weren’t trying to turn Russians against Americans. I therefore conclude that the USSR was not preparing an open attack on the US. Except in the case of a defensive war, one country planning to attack another would need to employ a process of preliminary distancing from their enemy.

The USSR government was capable of manipulating the populace to think that a war is a defensive war when in reality it was initiated by Russia. But no matter how treacherous they were, it would have been difficult to stage this trick across an ocean. My conclusion is that the USSR wasn’t really preparing any open attacks on the US. The whole cold war was a waste of energy, money and resources on both sides.

Now let’s move to modern times. There are still some American jokes in which Russians are laughing at themselves. For example, this one reminds us of the fate of Mikhail Khodorkovsky:

Question: Name the question to which Americans would answer “Sure!” and Russians “God, no!”
Answer: Would you like to change places with the richest person in the country?

The following joke appeared several years ago, and at first I classified it as Russians being over-proud of themselves:

“Can you describe a math department at an American university?”
“Yes, this is a place where Russian professors teach Chinese students.”

This situation changed recently. It moved from Russians being proud of their math traditions to stereotyping Americans as complete idiots. Here is a very recent joke:

Question: What do you call an intelligent person in the US?
Answer: A tourist.

Here is another joke that assumes complete cluelessness of Americans in geography and history:

Question: How do you recognize an American?
Answer: He is proud that the US won the Vietnam war with Hitler in Iraq.

Not only is the stereotype of Americans that they are stupid, but that they are stupider than everyone else:

Question: Dad, why Americans say “eighteen-ninety three” instead of “one thousand eight hundred ninety three”?
Answer: They still have eight-bit processors in their heads.

The situation with jokes about Americans is getting much worse in Russia. There are so many jokes about Americans that many joke websites formed a special category for American jokes. The speed at which the folklore changed from neutral to offensive was very fast. There is no doubt that it is supported from above. It is very useful for the Russian government to redirect the minds of their citizens from internal problems. Americans serve as a scapegoat.

Another thing Russians laugh a lot about is the idea of political correctness:

The new politically correct rules for chess in the US allowed blacks to make the first move.

Of course, a particular anecdote might not reflect the common opinion or, for that matter, the majority opinion. What is interesting is that there is a new trend. Here is a joke about consumerism:

Do you know that according to the latest American research the average speed of a woman walking around a shopping mall is $200 an hour?

The sad part is that the laugh about consumerism extends to a vision of the US government as being completely corrupt:

US — the government of the money, by the money, for the money.

Of course many jokes originated here and were translated from English. It is interesting which ones Russians chose to translate into Russian:

CNN said that after the war, there is a plan to divide Iraq into three parts … regular, premium and unleaded.

I do think that this newly found hatred comes from Putin and the present Russian administration. Russians are very much against the invasion of Iraq and many anecdotes reflect that:

Question: Mr. President, can you prove that Iraq has weapons of mass destruction?
Answer: Yes. We kept the receipts.

In general, the US is perceived as an aggressor.

George Bush found a way to invade every country — he declared war on Gypsies.

Is Russia preparing for war with the US? I do not know. Such a war seems like a ridiculous idea, but if you look at present-day anecdotes, it seems like Russia is doing more preparation than it did during the cold war period. First, Russia has been finding things to blame Americans for:

— What is the most powerful American chemical weapon?
— McDonalds.

Second, Russians are distancing themselves from Americans. Here is a very recent joke, where for the first time I saw that Americans are called “those people”:

Wild turkeys saved pilgrims from hunger. To commemorate this event, every year Americans kill and eat millions of turkeys as a thank you. God save us from doing anything good for those people.

For a long time I have checked the Russian joke websites before I go to bed. But in the last couple of years, I have become uncomfortable with the increasing antagonism towards America, so I decided to write this piece. Now that I finished it, I realized that, it’s sad, but we deserve many of the jokes.

Share:Facebooktwitterredditpinterestlinkedinmail

Understanding Philosophy Through Jokes

Plato and a PlatypusI got a funny book for a gift called Plato and a Platypus Walk into a Bar…: Understanding Philosophy Through Jokes. I couldn’t stop reading it. This book is an overview, and thus not very deep, but I enjoyed being reminded of philosophical concepts I’ve long since forgotten. Besides, I collect math jokes and many philosophical jokes qualify as mathy ones.

For example, self-referencing jokes:

Relativity — this term means different things to different people.

I especially liked jokes related to logic:

If a man tries to fail and succeeds, which did he do?

I knew most of the jokes, but here’s a math joke I never heard before:

Salesman: “Ma’am, this vacuum cleaner will cut your work in half.”
Customer: “Terrific! Give me two of them.”

Share:Facebooktwitterredditpinterestlinkedinmail

Perfect Math Notation

Notation is very important in your mathematical papers. Here are the most famous rules on how mathematicians use notation.

Do not explain your notation. Do not waste your time explaining your notation. Most of them are standard anyway. Your paper will look more impressive if you plunge right into your statements. So a good paper can start like this:

Obviously, p is never divisible by 6 …

Everyone knows that p is a prime number.

Use a variety of alphabets. This way you demonstrate your superior education, while expanding your notation possibilities. Not to mention that it looks so pretty:

sin2ℵ + cos2ℵ = 1.

You also get points for drawing a parallel between alpha and alef.

Denote different things with the same letter. It is very important to maintain continuity with the papers in your references, so you should use their notation. Besides, some notation is standard:

Suppose S is an ordered set. Elements of the permutation group S act on this set: for any s in S, sS is the corresponding action.

Mathematicians secretly compete with each other. The goal is to denote as many different things as possible with the same letter in one paper. My personal record was to denote six different things with the letter G. There are two versions of this competition to maximize the number of different meanings of one letter: it can be done either on the same page or in the same formula.

Use different notation for the same thing. The ultimate achievement would be to change your notation in the middle of your sentence:

Gauss showed that the sum of integers between 0 and k inclusive is equal to n(n+1)/2.

Replace standard notation with your own. Your paper will look much more complex than it is. Besides, if someone adopts your notation, they’ll have to name it after you:

Let us use the symbol ¥ for denoting an integral.

Denote a constant with a letter. Letters look more serious than numbers. You will impress your colleagues.

We will be studying graphs in which vertices are colored in only three colors: blue, red and green. For simplicity the number of colors is denoted by k.

As a bonus, when you prove your theorem for three colors, you can confuse everyone into thinking that you proved it for any number of colors.

Do not specify constraints or limits. When you use a summation or a integral, the limits look so bulky that they distract from your real formula. Besides, it’s time-consuming and too complicated for most text editors. Look at this perfect simplicity:

i2 = n(n+1)(2n+1)/6.

Everyone knows that you are summing the integers between 1 and n inclusive. Oops. It could be between 0 and n. But 02 = 0 anyway, so who cares?

Be creative. You can mix up these rules or invent your own.

Let us consider a triangle with N sides. Actually, it is better to replace N by H, because in Russian the letter that looks like English H is pronounced like English N. Let us denote the base of the triangle by X. By the way, that is the Russian letter that is usually pronounced like the English letter H, so sometimes I will interchange them. The height of the triangle is, as always, denoted by H.

By following these simple rules, you will earn great respect from your readers.

Share:Facebooktwitterredditpinterestlinkedinmail

Designing Bill Gates’ Bathroom

One of the questions from the Microsoft employment interviews for creative thinkers is: “How would you design Bill Gates’ bathroom?” I gave this question to my students at the Advanced Math and Science Academy Charter School. Most of them started by suggesting it be big and gold, but they also suggested more interesting ideas:

  • Heat the floor and the toilet seat.
  • Run a medical test automatically for every flush.
  • Provide a shampoo dispenser with a choice of 20 smells.
  • Paint the portrait of a favorite enemy inside the urinal.
  • Create a shower that looks and feels like a waterfall.
  • Install a face recognition system that immediately adjusts all the default settings according to who enters the bathroom.
  • Build a very simple bathroom and give the leftover money to charity.

Tell me your own ideas.

Share:Facebooktwitterredditpinterestlinkedinmail

Who Should Have Kissed Whom

RegretsI recently updated my collection of my favorite xkcd webcomics.

Today I would like to discuss the comic entitled “Regrets”. When I saw this comic, the first thing I did was go to Google to check the numbers. All my numbers were taken on September 9, 2008 at around 3:00 p.m.

Here are the Google hit counts:

  • “I should have kissed her” — 10,600
  • “I shouldn’t have kissed her” — 3,220

The numbers are slightly different than those in the cartoon, but the idea is the same; we regret we didn’t kiss. Does it mean that if you want to kiss someone you should go ahead, or otherwise you would contribute to this pile of regrets? The answer is coming later, but first, let’s see what happens if we change gender:

  • “I should have kissed him” — 3,170
  • “I shouldn’t have kissed him” — 1,240

The same story overall, but for some reason, there are fewer reports by people who either tried or didn’t try to kiss HIM. Is kissing him less interesting or important? Most probably we still expect men to take the initiative in kissing her.

Then I checked the genderless case:

  • “I should have kissed you” — 15,700
  • “I shouldn’t have kissed you” — 1,800

Wow. Looks like we really should start kissing each other. Right? But wait. Let’s check the point of view of a kissee, rather than a kisser:

  • “You should have kissed me” — 494
  • “You shouldn’t have kissed me” — 1,020

We see a completely different picture. It is easy to explain why the numbers are smaller: passive people would be less likely to discuss their feelings. But, even so, they claim that they preferred not to be kissed. Maybe it is OK that people mostly regret that they didn’t kiss. After all, if they had tried to kiss, they might not have been greeted with enthusiasm. This leaves you with a choice between your own regrets that you should have kissed and his/her regrets after you did.

I did regret that I hadn’t kissed you, but I so much prefer that I regret not kissing you than you regret being kissed by me. This small research made me feel better. I will not continue regretting any more.

Share:Facebooktwitterredditpinterestlinkedinmail

(x, why?) Webcomics

Jedi HamletChris Burke gave me his permission to add his webcomics to my collection of Funny Math Pictures.

This comic doesn’t qualify as a math picture, but it is geeky enough for me to like it.

Share:Facebooktwitterredditpinterestlinkedinmail

October Geek Jokes

I added some new jokes to my collection of math, computer and geek humor:

* * *

— What do you do to protect yourselves from viruses?
— We use disposable computers …

* * *

Microsoft offers a new service. They sell ad spots in their error messages.

* * *

Sysadmin:
— I do not care if everyone insists that using the name of my own cat as a password is a bad idea! RrgTt_fx32!b, kitty-kitty-kitty …

* * *

Due to technical difficulties the release of Windows 2000 is delayed until February 1901.

* * *

A doctor looking at patient’s X-rays:
— Hmm, multiple hip fractures, tibia and fibula fractures. Oh well, Photoshop can fix all that.

* * *

After learning how much money Bill Gates has, Satan offered him his own soul.

* * *

Question: What did one math book say to the other?
Answer: Don’t bother me. I have my own problems.

* * *

Student: Teacher, would you punish me for something I didn’t do?
Teacher: No, why?
Student: I didn’t do my homework.

* * *

— My teacher said we would have a test today, rain or shine.
— Then why are you so happy?
— Because it’s snowing.

* * *

Question: How many sides does a box have?
Answer: Two — the inside and the outside.

* * *

Question: What did the calculator say to everyone?
Answer: You can count on me.

Share:Facebooktwitterredditpinterestlinkedinmail

Back-to-School Funny Pictures

Delete Cookies?!Just updated my collection of Funny Math Pictures.

Share:Facebooktwitterredditpinterestlinkedinmail

A Math Paper by Moscow, U.S.S.R.

I’m not kidding; there is such a paper. It is titled, “A Headache-causing Problem” and its authors are Conway (J.H.), Paterson (M.S.), and Moscow (U.S.S.R.). The acknowledgements in the paper shed some light on how Moscow became a mathematician:

The work described here was carried out when the first and second named authors enjoyed the hospitality of the third. The second and third authors are indebted to the first for expository details. The first and third authors gratefully remark that without the constant stimulation and witty encouragement of the second author this paper

[The next part was meant to be on the following page, Conway told me, but the editor missed the humor and just continued the sentence…]

was completed.

As a consequence of this joke, Moscow is envied by many mathematicians as it has an Erdős number of 2. Now wait for a couple of hundred years, and Moscow will be the only living mathematician with an Erdős number of 2. I can just imagine future mathematicians trying to persuade Moscow to coauthor papers with them, because this will be the only way for them to score an Erdős number of 3.

Even though I lived there for 30 years, I had no idea that Moscow had a talent for math. Of course, this talent only emerged when Moscow was more than 800 years old.

Searching for Headache

This wonderful paper by Moscow was very difficult to find. It was presented to Hendrik W. Lenstra on the occasion of his doctoral examination. It was published in 1977 in a book titled “Een pak met een korte broek,” which in Dutch means, “A Book in Short Trousers.”

I tried to find it on the Internet — it wasn’t there. I asked John Conway — it took him quite some time to find it. Here is the picture of John Conway searching for a headache-causing problem. Luckily for you and me, he found it. To save you from another headache, I am uploading the scan of it in pdf format here: A Headache-causing Problem by J.H. Conway, M.S. Paterson, and U.S.S.R. Moscow.

I hope that Moscow will not start complaining that I never asked its permission to post the paper. Some might argue that Moscow, U.S.S.R., doesn’t exist anymore, but I would counter that it exists, but with a changed name. If Moscow tries to sue me, I hope it’s not because it is still bitter that I left it behind in 1990.

Hey Moscow, it’s time we were friends again. Would you like to co-author a paper with me?


Share:Facebooktwitterredditpinterestlinkedinmail