70

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This number, 70, is very important to any engineer that wants, or, dare I say, needs to get their PE license. It has caused untold angst to many an engineer down through the decades. The reason is that 70 is the number that represents a passing score on the Professional Engineering (PE) exam. Well, sort of.

From reading a fair amount about the scoring process of the PE exam, 70 at least used to be the scaled score that an engineer would have to get to pass. I remember being told this and reading this when I took the PE exam. Now, with equating, the different structure of the exam, the differing approaches of the states that designate passing scores, and numerous other reasons, one thing is extremely clear – no one knows what passing really is and what that 70 represents any more.

So, while an engineer may take the PE exam and desire to score at least a 70, that might mean that the engineer has passed the exam, or it might not. To confuse matters more, the 70 does not necessarily represent 70%, as many might think. With typically 80 points, that would mean getting at least 56 correct to pass the exam, but again, though many believe this to be the case, it is apparently not. The score one receives on the PE exam is a scaled number that is derived, from best accounts of it, by a group of experts locking themselves in a room with the exam and challenging each other to feats of engineering. I’ve never seen it, but I don’t think it is for the faint of heart.

Remember that 70 is the number. What it means, what it represents, how it is derived – who cares? As long the number in the end is at least – 70. Or possibly higher. When success on the PE exam is obtained, then the engineer can then achieve the life-long ambition of seeing one’s own name immortalized on a rubber stamp.

To an engineer, the closest thing to a perfect number is 70. Even if it doesn’t mean 70 any more.

Brain Analysis

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For a person who just happens to fall for an engineer, with all that love stuff involved, it is helpful to realize the following graph that depicts where on the left-brained/right-brained continuum engineers tend to fall.

Engineer                                      left     center     right

←—————————————————————————→

One can see that the engineer would be considered left-brained he was more emotional. Put another way, Spock was too emotional to be an engineer.

If a person has hung around an engineer long, this is likely a known fact. However, it is always good to recall the truism for engineers: Engineers don’t feel, they think.

So, remember the continuum. This will help a great deal when interactions are necessary or desired.

A Wonderful Expert to Follow

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EngineeringDaze is all about fun, but at times, we will also inform.

If you are not following the work of David Pogue, you are missing a fun, informative, and imaginative take on all thing technology. Engineers will love Pogue as he educates on the newest gadgets, latest tech trends, and whackiest technology around. His writing and videos will definitely satisfy the techno-geek side of any engineer.

Pogue writes the tech column for the New York Times, a somewhat respectable newspaper on the east coast somewhere. He also has done a miniseries for PBS, writes for Scientific American, and does a weekly video for CNBC. His is all about fun and information – much like we are. Therefore, the recommendation is to check out David Pogue.

Purchasing a Car – What Color?

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We will leave the act of looking for a car, analyzing which car to buy, what options, financing, etc. all to future posts. For now, we want only to discuss one of the final decisions – the color. I have gone to a dealership and when we get to that point, the salesperson asks, “And what color would you like your car to be?” They might as well be speaking Swahili. Color? Do I look like an architect?

As an engineer, I am all about function, not form. My mantra is, “Engineers don’t feel, they think.”  Colors are feeling. Is there a price difference? No? Then ask my wife. I may consider keeping away from dark cars in a southern state to compensate for the direct sunlight, but other than that, I really don’t care. Some engineers might. I consider them meandering toward architecture.

OK – One caveat, but it fits in with the function over form issue. Studies have shown that one is more likely to get pulled over and/or given a ticket if one is driving a car of certain colors. Red, I believe, is the worst by far. And although I don’t drive (excessively) over the speed limit, any advantage in not being stopped by the police is gladly taken. So I tell my wife, any color – except red.

You Might Be an Engineer If…

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– At any time in your life you would have said that your longest lasting relationship was with Ohura, 7 of 9, or T’pol.

4

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According to a friend of mine, 4 is an important number for engineers. This statement is at first strange since my friend, we will call him “Wade”, is not an engineer. How can he know?

But according to “Wade”, one can have a flock of birds, a gaggle of geese, a herd of elephants, a school of fish, but when it comes to engineers:

The set E of a number n of engineers, when gathered together and n is greater than or equal to 4, will create a “Yawning” of engineers.

{E: n>=4} = Yawning

Something tells me “Wade” is making fun of engineers, but I’m still working on that.

The Equation for Dating

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With equations, the engineer can figure things out. He may set up an equation something like this:

P = 100 x 0.0034(p1 + p2 + p3)

where,

P = Likelihood, in percent, that a woman will go out with him

p1 = Likelihood, as a fraction of 1, that he (the engineer) will decide to ask her out 

p2 = Likelihood, as a fraction of 1, that he (the engineer) will actually ask her out when he talks to her

 p3 = Likelihood, as a fraction of 1, that when he (the engineer) will talk that she actually understands that he is asking her out

In the engineer’s mind, the values of the three variables on the right side of the equation are typically:

p1 = 0.2                         p2 = 0.4                              p3 = 0.2

p1 is obviously low because the engineer knows the value of the other two variables. This may be as high as 0.3 for the confident, “outgoing” engineer

P2 is somewhat higher since, even though it is less than half the time, it is more likely that he will say the words in his mind than decide to say them, especially if he writes it out.

P3 is again quite low, mainly due to the fact that if the engineer will, as some may, start the discussion with an equation as to why the girl may want to go out with him, he typically loses her when he pulls out the calculator.

The 0.0034 value represents what an engineer sees as the probability that this girl, any girl, will actually say, “Yes”. Quite low, indeed, but at least it’s not negative. It is important to see where the engineer makes a mistake – easy to do when it comes to matters of the heart. He only calculates that there is a little over 1/3 of one percent chance that at that point she will actually say yes. This is not 33 percent chance, but well under 1 percent we are talking about here. But the engineer vastly underestimates this. Depending on the circumstances, this number is actually between 40% and 70%. Yes, that high. Some of these women have seen McGyver, too, and many are thinking, “Hmmmm, maybe.”

So we see that the process is much more involved than a silly musing of whether to ask a woman out. There are calculations to make, probability estimations to determine, equations to derive. And, yes, I realize that we are talking about relationships. But this is relationship theory done the engineer way.

Great Website for Finding Satellites

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People will frequently ask me, “How can I know when I can see the Cosmos 2237 Rocket from my home?” OK, one time, someone asked me when to view the International Space Station. Whatever the satellite, there is one great place to go.

A great website is Heavens Above. Go there, enter your location – on a map for most people, some engineers may know their latitude and longitude from memory. Then explore the satellite passes that are visible from your home, as they have all the info you need available – which satellite, the time it appears, where in the sky to look, etc. Don’t forget to check out the Iridium Flares (especially the -6, -7, or -8 ones), the brightest satellites most people never know exist. But with the info from this website, you will amaze your friends as you act like a prophet or fortune-teller. You will not be disappointed.

Also, Heavens Above will give you great information that my friend, an NE (non-engineer) named Tom, may ridicule, but engineers may find fascinating: the altitude of the International Space Station over time, the location of man-made probes that are beyond the solar system, a plan view of the relative location of all the planets (even Pluto, though we all know it was defrocked), and so much more!

Introducing Engineers

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A colleague of mine, a non-engineer, came back from a project meeting where engineers were only a small segment of the assembled group. They met in a small auditorium and to start off the meeting, the facilitator asked that all the different groups stand and be recognized: personnel from the environmental field, right-of-way, public relations, the building contractor, and others, were all asked to rise when their group was called. My coworker said that it when it came time for the engineers to stand, he noted the typical engineering stature that EVERY ENGINEER there assumed – slow to stand, head down, hands in pockets. I think my colleague was laughing about this. Actually, I think he still is laughing about it. But, I see it not as an introverted, socially inept pose, but rather that the engineers are humble and don’t like the attention. Whatever the root cause, look for the engineering stance next time you are in a project meeting and someone says, “Can the engineers all stand.”

You Might Be an Engineer If…

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You’ve taken more time to decide to buy a car than you actually owned it.

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