26 January 2008

Rules of Life

1. Never give yourself a haircut after three margaritas.

2. You need only two tools. WD-40 and duct tape. If it doesn't move and it should, use WD-40. If it moves and shouldn't, use the tape.

3. The five most essential words for a healthy, vital relationship "I apologize" and "You are right."

4. Everyone seems normal until you get to know them.

5. When you make a mistake, make amends immediately. It's easier to eat crow while it's still warm.

6. The only really good advice that your mother ever gave you was, "Go! You might meet somebody!"

7. If he/she says that you are too good for him/her believe them.

8. Learn to pick your battles; ask yourself, 'Will this matter one year from now? How about one month? One week? One day?'

9. Never pass up an opportunity to pee.

10. If you woke up breathing, congratulations! You have another chance!

11. Living well really is the best revenge. Being miserable because of a bad or former relationship just might mean that the other person was right about you.

12. Work is good, but it's not that important.

13. And finally... Be really nice to your friends. You never know when you are going to need them to empty your bedpan.

03 January 2008

Exam Answer 2

..."Some time ago I received a call from a colleague. He was about to give a student a zero for his answer to a physics question, while the student claimed a perfect score. The instructor and the student agreed to an impartial arbiter, and I was selected. I read the examination question:

"SHOW HOW IS IT POSSIBLE TO DETERMINE THE HEIGHT OF A TALL BUILDING WITH THE AID OF A BAROMETER."

The student had answered, "Take the barometer to the top of the building, attach a long rope to it, lower it to the street, and then bring the rope up, measuring the length of the rope. The length of the rope is the height of the building."

The student really had a strong case for full credit since he had really answered the question completely and correctly! On the other hand, if full credit were given, it could well contribute to a high grade in his physics course and to certify competence in physics, but the answer did not confirm this.

I suggested that the student have another try. I gave the student six minutes to answer the question with the warning that the answer should show some knowledge of physics. At the end of five minutes, he had not written anything. I asked if he wished to give up, but he said he had many answers to this problem; he was just thinking of the best one. I excused myself for interrupting him and asked him to please go on.

In the next minute, he dashed off his answer which read: "Take the barometer to the top of the building and lean over the edge of the roof. Drop the barometer, timing its fall with a stopwatch. Then, using the formula x=0.5*a*t^^2, calculate the height of the building."

At this point, I asked my colleague if he would give up. He conceded, and gave the student almost full credit. While leaving my colleague's office, I recalled that the student had said that he had other answers to the problem, so I asked him what they were.

"Well," said the student, "there are many ways of getting the height of a tall building with the aid of a barometer. For example, you could take the barometer out on a sunny day and measure the height of the barometer, the length of its shadow, and the length of the shadow of the building, and by the use of simple proportion, determine the height of the building."

"Fine," I said, "and others?"

"Yes," said the student, "there is a very basic measurement method you will like. In this method, you take the barometer and begin to walk up the stairs. As you climb the stairs, you mark off the length of the barometer along the wall. You then count the number of marks, and this will give you the height of the building in barometer units."

"A very direct method."

"Of course. If you want a more sophisticated method, you can tie the barometer to the end of a string, swing it as a pendulum, and determine the value of g at the street level and at the top of the building. From the difference between the two values of g, the height of the building, in principle, can be calculated."

"On this same tact, you could take the barometer to the top of the building, attach a long rope to it, lower it to just above the street, and then swing it as a pendulum. You could then calculate the height of the building by the period of the precession".

"Finally," he concluded, "there are many other ways of solving the problem.

Probably the best," he said, "is to take the barometer to the basement and knock on the superintendent's door. When the superintendent answers, you speak to him as follows: 'Mr. Superintendent, here is a fine barometer. If you will tell me the height of the building, I will give you this barometer."

At this point, I asked the student if he really did not know the conventional answer to this question. He admitted that he did, but said that he was fed up with high school and college instructors trying to teach him how to think.

The student was Neils Bohr and the arbiter was Ernest Rutherford.

01 January 2008

Steve

Steve was bragging to his boss one day, "You know, I know everyone there is to know. Just name someone, anyone, and I know them."

Tired of his boasting, his boss called his bluff, "OK, Steve how about Tom Cruise?"

"Sure, yes, Tom and I are old friends, and I can prove it. " So Steve and his boss fly out to Hollywood and knock on Tom Cruise's door, and sure enough, Tom Cruise shouts, "Steve! Great to see you! You and your friend come right in and join me for lunch!"

Although impressed, Steve's boss is still skeptical. After they leave Cruise's house, he tells Steve that he thinks Steve's knowing Cruise was just lucky.

"No, no, just name anyone else," Steve says.

"President Clinton," his boss quickly retorts.

"Yes," Steve says, "I know him, let's fly out to Washington."

And off they go. At the White House, Clinton spots Steve on the tour and motions him and his boss over, saying, "Steve, what a surprise, I was just on my way to a meeting, but you and your friend come on in and let's have a cup of coffee first and catch up."

Well, the boss is very shaken by now, but still not totally convinced.

After they leave the White house grounds, he expresses his doubts to Steve, who again implores him to name anyone else.

"The Pope," his boss replies. "Sure!" says Steve. "My folks are from Poland, and I've known the Pope a long time."

So off they fly to Rome. Steve and his boss are assembled with the masses in Vatican Square when Steve says, "This will never work. I can't catch the Pope's eye among all these people. Tell you what, I know all the guards so let me just go upstairs and I'll come out on the balcony with the Pope." And he disappears into the crowd headed toward the Vatican.

Sure enough, half an hour later Steve emerges with the Pope on the balcony. But by the time Steve returns, he finds that his boss has had a heart attack and is surrounded by paramedics.

Working his way to his boss' side, Steve asks him, "What happened?"

His boss looks up and says, "I was doing fine until you and the Pope came out on the balcony and the man next to me said, "Who's that on the balcony with Steve?"

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