Showing posts with label engineers. Show all posts
Showing posts with label engineers. Show all posts

Friday, April 19, 2024

Why Standard Railroad Tracks Are the Width They Are

 Things you didn't learn in grade school...

The US standard railroad gauge (distance between the rails) is 4 feet, 8.5 inches. That's an exceedingly odd number. Why was that gauge used?

Well, because that's the way they built them in England, and English engineers designed the first US railroads. Why did the English build them like that? Because the first rail lines were built by the same people who built the wagon tramways, and that's the gauge they used. So, why did 'they' use that gauge then?

Because the people who built the tramways used the same jigs and tools that they had used for building wagons, which used that same wheel spacing. Why did the wagons have that particular odd wheel spacing?

Well, if they tried to use any other spacing, the wagon wheels would break more often on some of the old, long-distance roads in England. You see, that's the spacing of the wheel ruts. So who built those old rutted roads?

Imperial Rome built the first long-distance roads in Europe (including England) for their legions. Those roads have been used ever since. And what about the ruts in the roads? Roman war chariots formed the initial ruts, which everyone else had to match or run the risk of destroying their wagon wheels. Since the chariots were made for Imperial Rome, they were all alike in the matter of wheel spacing.

Therefore the United States standard railroad gauge of 4 feet, 8.5 inches is derived from the original specifications for an Imperial Roman war chariot. Bureaucracies live forever.

So the next time you are handed a specification/procedure/process and wonder 'What horse's a*s came up with this?' you may be exactly right. Imperial Roman army chariots were made just wide enough to accommodate the rear ends of two war horses (Two horses' a*ses.).

Now, the twist to the story: When you see a Space Shuttle sitting on its launch pad, there are two big booster rockets attached to the sides of the main fuel tank. These are solid rocket boosters or SRBs. The SRBs are made by Thiokol at their factory in Utah. The engineers who designed the SRBs would have preferred to make them a bit fatter, but the SRBs had to be shipped by train from the factory to the launch site. The railroad line from the factory happens to run through a tunnel in the mountains, and the SRBs had to fit through that tunnel. The tunnel is slightly wider than the railroad track, and the railroad track, as you now know, is about as wide as two horses behind.

So, a major Space Shuttle design feature, of what is arguably the world's most advanced transportation system, was determined over two thousand years ago by the width of a horse's as. And you thought being a horse wasn't important? Ancient horses as*es control almost everything.

Saturday, February 27, 2021

Monday, May 16, 2016

The Future is Here

I received this article via email...

The Future Is Here

In 1998, Kodak had 170,000 employees and sold 85% of all photo paper worldwide.  Within just a few years, their business model disappeared and they went bankrupt.

What happened to Kodak will happen in a lot of industries in the next 10 year - and most people don't see it coming. Did you think in 1998 that 3 years later you would never take pictures on paper film again?

Yet digital cameras were invented in 1975. The first ones only had 10,000 pixels, but followed Moore's law. So as with all exponential technologies, it was a disappointment for a long time, before it became way superior and got mainstream in only a few short years. It will now happen with Artificial Intelligence, health, autonomous and electric cars, education, 3D printing, agriculture and jobs. Welcome to the 4th Industrial Revolution. Welcome to the Exponential Age.

Software will disrupt most traditional industries in the next 5-10 years.  Uber is just a software tool, they don't own any cars, and are now the biggest taxi company in the world. Airbnb is now the biggest hotel company in the world, although they don't own any properties.

Artificial Intelligence: Computers become exponentially better in understanding the world. This year, a computer beat the best Go player in the world, 10 years earlier than expected. In the US, young lawyers already don't get jobs. Because of IBM Watson, you can get legal advice (so far for more or less basic stuff) within seconds, with 90% accuracy compared with 70% accuracy when done by humans. So if you study law, stop immediately. There will be 90% less lawyers in the future, only specialists will remain. Watson already helps nurses diagnosing cancer, 4 times more accurate than human nurses. Facebook now has a pattern recognition software that can recognize faces better than humans. In 2030, computers will become more intelligent than humans.

Autonomous cars: In 2018 the first self-driving cars will appear for the public. Around 2020, the complete industry will start to be disrupted. You don't want to own a car anymore. You will call a car with your phone, it will show up at your location and drive you to your destination. You will not need to park it, you only pay for the driven distance and can be productive while driving. Our kids will never get a driver's license and will never own a car. It will change the cities, because we will need 90-95% less cars for that. We can transform former parking space into parks. 1.2 million people die  each year in car accidents worldwide. We now have one accident every 100,000 km, with  autonomous driving that will drop to one accident in 10 million km. That will save a million lives each year.

Most car companies might become bankrupt. Traditional car companies try the evolutionary approach and just build a better car, while tech companies (Tesla, Apple, Google) will do the revolutionary  approach and build a computer on wheels. I spoke to a lot of engineers from Volkswagen and Audi; they are completely terrified of Tesla.

Insurance companies will have massive trouble because without accidents, the insurance will become 100x cheaper. Their car insurance business model will disappear.

Real estate will change. Because if you can work while you commute, people will move further away to live in a more beautiful neighborhood.

Electric cars will become mainstream until 2020. Cities will be less noisy because all cars will run on electric. Electricity will become incredibly cheap and clean: Solar production has been on an exponential curve for 30 years, but you can only now see the impact.  Last year, more solar energy was installed worldwide than fossil. The price for solar will drop so much that all coal companies will be out of business by 2025.

With cheap electricity comes cheap and abundant water. Desalination now only needs 2kWh per cubic meter. We don't have scarce water in most places, we only have scarce drinking water. Imagine what will be possible if anyone can have as much clean water as he wants, for nearly no cost.

Health: The Tricorder X price will be announced this year. There will be companies who will build a medical device (called the "Tricorder" from Star Trek) that works with your phone, which takes your retina scan, your blood sample and you breath into it. It then analyses 54 biomarkers that will identify nearly any disease. It will be cheap, so in a few years everyone on this planet will have access to world class medicine, nearly for free.

3D printing: The price of the cheapest 3D printer came down from $18,000 to $400 within 10 years. In the same time, it became 100 times faster. All major shoe companies started 3D printing shoes.

Spare airplane parts are already 3D printed in remote airports. The space station now has a printer that eliminates the need for the large amount of spare parts they used to have in the past.

At the end of this year, new smart phones will have 3D scanning possibilities. You can then 3D scan your feet and print your perfect shoe at home. In China, they already 3D printed a complete 6-story office building. By 2027, 10% of everything that's being produced will be 3D printed.

Business opportunities: If you think of a niche you want to go in, ask yourself: "in the future, do you think we will have that?" and if the answer is yes, how can you make that happen sooner? If it doesn't work with your phone, forget the idea. And any idea designed for success in the 20th century is doomed in to failure in the 21st century.

Work: 70-80% of jobs will disappear in the next 20 years. There will be a lot of new jobs, but it is not clear if there will be enough new jobs in such a small time.

Agriculture: There will be a $100 agricultural robot in the future.  Farmers in 3rd world countries can then become managers of their field instead of working all days on their fields. Aeroponics will need much less water. The first Petri dish produced veal is now available and will be cheaper than cow produced veal in 2018. Right now, 30% of all agricultural surfaces is used for cows. Imagine if we don't need that space anymore. There are several startups who will bring insect protein to the market shortly. It contains more protein than meat. It will be labeled as "alternative protein source" (because most people still reject the idea of eating insects).

There is an app called "moodies" which can already tell in which mood you are. Until 2020 there will be apps that can tell by your facial expressions if you are lying. Imagine a political debate where it's being displayed when they are telling the truth and when not.

Bitcoin will become mainstream this year and might even become the default reserve currency.

Longevity: Right now, the average life span increases by 3 months per year. Four years ago, the life span used to be 79 years, now it's 80 years. The increase itself is increasing and by 2036, there will be
more than one year increase per year. So we all might live for a long long time, probably way more than 100.

Education: The cheapest smart phones are already at $10 in Africa and Asia. Until 2020, 70% of all humans will own a smart phone. That means, everyone has the same access to world class education. Every child can use Khan academy for everything a child learns at school in First World countries. We have already released our software in Indonesia and will release it in Arabic, Suaheli and Chinese this Summer, because I see an enormous potential. We will give the English app for free, so that children in Africa can become fluent in English within half a year.

Boom!

Sunday, June 29, 2014

Engineering Flowchart

This works for me:


Monday, October 11, 2010

Boeing 787 Dreamliner video

Flight testing of the Boeing 787 Dreamliner continues, and some of the more dramatic tests took place recently at locations around the world. The airplane maker released a video highlighting three of the more unusual takeoff and landing tests, including dragging the 787’s tail down a runway.


The 3-minute long flight test video is here.

I worked on the nacelle system (the engine pods) for the Boeing 787 in my last two years in Engineering at Goodrich Aerostructures, so I'm very interested in seeing the Boeing 787 go into production and be a successful aircraft.   

Tuesday, September 14, 2010

Conversion Tables for Engineers

1. Ratio of an igloo’s circumference to its diameter = Eskimo Pi

2. 2000 pounds of Chinese soup = Won ton

3. 1 millionth of a mouthwash = 1 microscope

4. Time between slipping on a peel and smacking the pavement = 1 bananosecond

5. Weight an evangelist carries with God = 1 billigram

6. Time it takes to sail 220 yards at 1 nautical mile per hour = Knotfurlong

7. 16.5 feet in the Twilight Zone = 1 Rod Serling

8. Half of a large intestine = 1 semicolon

9. 1,000,000 aches = 1 megahurtz

10. Basic unit of laryngitis = 1 hoarsepower

11. Shortest distance between two jokes = A straight line

12. 453.6 graham crackers = 1 pound cake

13. 1 million-million microphones = 1 megaphone

14. 2 million bicycles = 2 megacycles

15. 365.25 days = 1 unicycle

16. 2000 mockingbirds = 2 kilomockingbirds

17. 52 cards = 1 decacards

18. 1 kilogram of falling figs = 1 FigNewton

19. 1000 milliliters of wet socks = 1 literhosen

20. 1 millionth of a fish = 1 microfiche

21. 1 trillion pins = 1 terrapin

22. 10 rations = 1 decoration

23. 100 rations = 1 C-ration

24. 2 monograms = 1 diagram

25. 4 nickels = 2 paradigms

26. 2.4 statute miles of intravenous surgical tubing at Yale UniversityHospital = 1 IV League

Saturday, October 31, 2009

Apple Does it again!

From my email...

Apple announced today that it has developed a breast implant that can store and play music. The iTit will cost from $499 to $699, depending on cup and speaker size.

This is considered a major social breakthrough, because women are always complaining about men staring at their breasts and not listening to them.

Haven't checked this on Snopes yet, but it sounds like a winner to me!

Wednesday, October 21, 2009

Space Missions from Earth


Isn't this map cool? Click on it and enlarge it to see all of the space missions from Earth.

Tuesday, September 22, 2009

Wisdom - from the manual

"If the enemy is in range, so are you." -- Infantry Journal

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"It is generally inadvisable to eject directly over the area you just bombed." --U.S. Air Force Manual

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"Whoever said the pen is mightier than the sword obviously never encountered automatic weapons." -- General MacArthur

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"You, you, and you ... Panic. The rest of you, come with me." -- U.S. Marine Corps Gunnery Sgt.

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"Tracers work both ways." -- U.S. Army Ordnance

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"Five second fuses only last three seconds." -- - Infantry Journal

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"Any ship can be a minesweeper....Once."

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"Never tell the Platoon Sergeant you have nothing to do." -- Unknown Marine Recruit

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Clean it, if it's Dirty. Oil it, if it Squeaks. But: Don't Mess with it, if it Works! -- USAF Electronic Technician

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"If you see a bomb technician running, keep up with him." -- USAF - Ammo Troop

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"Yea, Though I Fly Through the Valley of Death , I Shall Fear No Evil. For I am at 80,000 Feet and Climbing."

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"You've never been lost until you've been lost at Mach 3." -- Paul F. Crickmore ( test pilot )

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A Navigator's Definition of Latitude & Longitude: Latitude is Where We are Lost, & Longitude is How Long We've been Lost There! -- USAF Navi-guesser

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"The only time you have too much fuel is when you're on fire."

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"If the wings are traveling faster than the fuselage, it's probably a helicopter --
However, it's probably unsafe in any case "

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"When one engine fails on a twin-engine airplane, You always have enough power left to get you to the scene of the crash."

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"What is the similarity between air traffic controllers and pilots? If a pilot fowls up, the pilot dies; If ATC fowls up, .... The pilot dies."

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" Airspeed, altitude and brains. Two out of three are needed to successfully complete the flight."

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"Mankind has a perfect record in aviation. We never left one up there!"

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"Flying the airplane is more important than radioing your plight to a person on the ground who is incapable of understanding or doing anything about it."

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"The Piper Cub is the safest airplane in the world; it can just barely kill you."
- Attributed to Max Stanley (Northrop test pilot)

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"There is no reason to fly through a thunderstorm in peacetime." -- Sign over squadron ops desk at Davis-Monthan AFB, AZ, 1970

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"If something hasn't broken on your helicopter, it's about to."

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"You know that your landing gear is up and locked When it takes FULL power to taxi to the terminal."

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As the test pilot climbs out of the experimental aircraft, having torn off the wings and tail in the crash landing, the crash truck arrives; the rescuer sees a bloodied pilot and asks, "What happened?" The pilot's reply: "I don 't know, I just got here myself

Sunday, August 02, 2009

Stonehenge Mystery Solved?

For hundreds, maybe thousands of years, people have been trying to figure out how primitive people could build huge structures such as Stonehenge and the pyramids out of stone blocks weighing thousands of pounds. Scientists have been stumped.

Then along comes a normal guy - a retired Michigan construction worker - and he says, "well, I would do it like this..." And he does. This guy uses the
simplest tools known to man and shows how simple and easy it would have been to create Stonehenge !

This is a really great video clip. Amazing how this guy could figure out something that has confounded scholars for centuries. And not only figures it out, but demonstrates it!

This guy could build a replica of Stonehenge single-handedly, while a ommittee of 20 or 30 Civil Engineering professors from leading universities would be debating how it was done.

" Stonehenge Reloaded".

http://j-walkblog.com/index.php?/weblog/posts/moving_big_rocks

Tuesday, July 28, 2009

Past Scientific Predictions

“Computers in the future may weigh no more than 1.5 tons.”-- Popular Mechanics, forecasting the relentless march of science,1949

“I think there is a world market for maybe five computers.” -- Thomas Watson, chairman of IBM, 1943

“I have traveled the length and breadth of this country and talked with the best people, and I can assure you that data processing is a fad that won’t last out the year.” -- The editor in charge of business books for Prentice Hall, 1957

“But what ... is it good for?” -- Engineer at the Advanced Computing Systems Division of IBM, 1968, commenting on the microchip.

“There is no reason anyone would want a computer in their home.” -- Ken Olson, president, chairman and founder of Digital Equipment Corp., 1977

“640K ought to be enough for anybody.” -- Bill Gates, 1981

“This ‘telephone’ has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us.” -- Western Union internal memo, 1876.

“The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?" -- David Sarnoff’s associates in response to his urgings for investment in the radio in the 1920s.

“The concept is interesting and well formed, but in order to earn better than a ‘C,’ the idea must be feasible.” -- A Yale University management professor in response to Fred Smith’s paper proposing reliable overnight delivery service. (Smith went on to found Federal Express Corp.)

“Who the hell wants to hear actors talk?” -- H.M. Warner, Warner Brothers, 1927.

“I’m just glad it’ll be Clark Gable who’s falling on his face and not Gary Cooper.” -- Gary Cooper on his decision not to take the leading role in “Gone With The Wind.”

“A cookie store is a bad idea. Besides, the market research reports say America likes crispy cookies, not soft and chewy cookies like you make.” -- Response to Debbi Fields’ idea of starting Mrs. Fields’ Cookies.

“We don’t like their sound, and guitar music is on the way out.” -- Decca Recording Co. rejecting the Beatles, 1962.

“Heavier than air flying machines are impossible.” -- Lord Kelvin, president, Royal Society, 1895.

“If I had thought about it, I wouldn’t have done the experiment. The literature was full of examples that said you can’t do this.” -- Spencer Silver on the work that led to the unique adhesives for 3 M “Post It” Notepads.

“So we went to Atari and said, ‘Hey, we’ve got this amazing thing, even built with some of your parts, and what do you think about funding us? Or we’ ll give it to you. We just want to do it. Pay our salary, we’ll come work for you.’ And they said,‘No.’ So then we went to Hewlett Packard, and they said, ‘Hey, we don’t need you. You haven’t got through college yet.’” -- Apple Computer Inc. founder Steve Jobs on attempts to get Atari and H P interested in his and Steve Wozniak’s personal computer. [Ed note: To say their computer is not quite correct, it was designed by Wozniak’s entirely.]

“Professor Goddard does not know the relation between action and reaction and the need to have something better than a vacuum against which to react. He seems to lack the basic knowledge ladled out daily in high schools.” -- 1921 New York Times editorial about Robert Goddard’s revolutionary rocket work.

“You want to have consistent and uniform muscle development across all of your muscles? It can’t be done. It’s just a fact of life. You just have to accept inconsistent muscle development as an unalterable condition of weight training.” -- Response to Arthur Jones, who solved the “unsolveable” problem by inventing Nautilus.

“Drill for oil? You mean drill into the ground to try and find oil? You’re crazy.” -- Drillers who Edwin L. Drake tried to enlist to his project to drill for oil in 1859.

“Stocks have reached what looks like a permanently high plateau.” -- Irving Fisher, Professor of Economics, Yale University, 1929.

“Airplanes are interesting toys but of no military value.” -- Marshal Ferdinand Foch, Professor of Strategy, Ecole Superieure de Guerre.

“Everything that can be invented has been invented.” -- Charles H. Duell, Commissioner, U.S. Office of Patents, 1899.

“Louis Pasteur’s theory of germs is ridiculous fiction”. -- Pierre Pachet, Professor of Physiology at Toulouse, 1872

“The abdomen, the chest, and the brain will forever be shut from the intrusion of the wise and humane surgeon”. -- Sir John Eric Ericksen, British surgeon, appointed Surgeon Extraordinary to Queen Victoria 1873.

Thursday, December 18, 2008

Auto Air Conditioner Settings

From my email...

The four Goldberg brothers, Lowell, Norman, Hiram, and Max, invented and developed the first automobile air-conditioner.

On July 17, 1946, the temperature in Detroit was 97 degrees. The four brothers walked into old man Henry Ford's office and sweet-talked his secretary into telling him that four gentlemen were there with the most exciting innovation in the auto industry since the electric starter. Henry was curious and invited them into his office.

They refused and instead asked that he come out to the parking lot to their car. They persuaded him to get into the car, which was about 130 degrees, turned on the air conditioner, and cooled the car off immediately.

The old man got very excited and invited them back to the office, where he offered them $3 million for the patent. The brothers refused, saying they would settle for $2 million, but they wanted the recognition by having a label, 'The Goldberg Air-Conditioner,' on the dashboard of each car in which it was installed.

Now old man Ford was more than just a little anti-Semitic, and there was no way he was going to put the Goldberg's name on two million Fords. They haggled back and forth for about two hours, and finally agreed on $4 million and that just their first names would be shown.

And so to this day, all Ford air conditioners show Lo, Norm, Hi, and Max on the controls.

So, now you know...

Tuesday, January 22, 2008

The Beauty of Math!

1 x 8 + 1 = 9
12 x 8 + 2 = 98
123 x 8 + 3 = 987
1234 x 8 + 4 = 9876
12345 x 8 + 5 = 98765
123456 x 8 + 6 = 987654
1234567 x 8 + 7 = 9876543
12345678 x 8 + 8 = 98765432
123456789 x 8 + 9 = 987654321
1 x 9 + 2 = 11
12 x 9 + 3 = 111
123 x 9 + 4 = 1111
1234 x 9 + 5 = 11111
12345 x 9 + 6 = 111111
123456 x 9 + 7 = 1111111
1234567 x 9 + 8 = 11111111
12345678 x 9 + 9 = 111111111
123456789 x 9 +10= 1111111111
9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888
9876 x 9 + 4 = 88888
98765 x 9 + 3 = 888888
987654 x 9 + 2 = 8888888
9876543 x 9 + 1 = 88888888
98765432 x 9 + 0 = 888888888
Brilliant, isn't it? And look at this symmetry:
1 x 1 = 1
11 x 11 = 121
111 x 111 = 12321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
111111 x 111111 = 12345654321
1111111 x 1111111 = 1234567654321
11111111 x 11111111 = 123456787654321
111111111 x 111111111 = 12345678987654321
This is all in Base 10!

Saturday, November 24, 2007

At Prison or Work?

Just in case you ever get these two environments mixed up, this should make things a little bit clearer.

@ PRISON You spend the majority of your time in a 10X10 cell
@ WORK You spend the majority of your time in an 8X8 cubicle

@ PRISON You get three meals a day fully paid for
@ WORK You get a break for one meal and you have to pay for it

@ PRISON You get time off for good behavior
@ WORK You get more work for good behavior

@ PRISON The guard locks and unlocks all the doors for you
@ WORK You must often carry a security card and open all the doors for yourself

@ PRISON You can watch TV and play games
@ WORK You could get fired for watching TV and playing games

@ PRISON You get your own toilet
@ WORK You have to share the toilet with some people who pee on the seat

@ PRISON They allow your family and friends to visit
@ WORK You aren't even supposed to speak to your family

@ PRISON All expenses are paid by the taxpayers with no work required
@ WORK You get to pay all your expenses to go to work, and they deduct taxes from your salary to pay for prisoners, and welfare

@ PRISON You spend most of your life inside bars wanting to get out
@ WORK You spend most of your time wanting to get out and go inside bars

@ PRISON You must deal with sadistic wardens
@ WORK They are called managers

THERE IS SOMETHING SERIOUSLY WRONG WITH THIS PICTURE!!!!

Sunday, July 15, 2007

Boeing 787 Rollout

Boeing rolled out the new Boeing 787 Deamliner on 7-8-07 (of course!) at Everett WA.



Here is a closeup view of the 787 nacelle that Goodrich has designed and is manufacturing. I worked on the thrust reverser design and analysis (the thrust reverser is the part with the sawtooth trailing edge - which are noise attenuation devices).

Sunday, April 15, 2007

Understanding Engineers

Two engineering students were walking across campus when one said, "Where did you get such a great bike?"

The second engineer replied, "Well, I was walking along yesterday minding my own business when a beautiful woman rode up on this bike. She threw the bike to the ground, took off all her clothes and said, "Take what you want."

The second engineer nodded approvingly, "Good choice; the clothes probably wouldn't have fit."

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To the optimist, the glass is half full.To the pessimist, the glass is half empty.To the engineer, the glass is twice as big as it needs to be.

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A pastor, a doctor and an engineer were waiting one morning for a particularly slow group of golfers. The engineer fumed, "What's with these guys? We must have been waiting for 15 minutes!"

The doctor chimed in, "I don't know, but I've never seen such ineptitude!"

The pastor said, "Hey, here comes the greens keeper. Let's have a word with him. Hi George! Say, what's with that group ahead of us? They're rather slow, aren't they?"

The greens keeper replied, "Oh, yes, that's a group of blind firefighters. They lost their sight saving our clubhouse from a fire last year, so we always let them play for free anytime."

The group was silent for a moment, then the pastor said, "That's so sad. I think I will say a special prayer for them tonight." The doctor said, "Good idea. And I'm going to contact my ophthalmologist buddy and see if there's anything he can do for them." The engineer said, "Why can't these guys play at night?"

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What is the difference between mechanical engineers and civil engineers? Answer: Mechanical engineers build weapons and civil engineers build targets.

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The graduate with a Science degree asks, "Why does it work?"The graduate with an Engineering degree asks, "How does it work?"The graduate with an Accounting degree asks, "How much will it cost?"The graduate with an Arts degree asks, "Do you want fries with that?

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Three engineering students were gathered together discussing the possible designers of the human body.

One said, "It was a mechanical engineer. Just look at all the joints."

Another said, "No, it was an electrical engineer. The nervous system has many thousands of electrical connections.

The last one said, "Actually it must have been a civil engineer. Who else would run a toxic waste pipeline through a recreational area?"

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Normal people believe that if it ain't broke, don't fix it.Engineers believe that if it ain't broke, it doesn't have enough features yet.

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An engineer was crossing a road one-day when a frog called out to him and said, "If you kiss me, I'll turn into a beautiful princess."

He bent over, picked up the frog and put it in his pocket. The frog spoke up again and said, "If you kiss me and turn me back into a beautiful princess, I will stay with you for one week."

The engineer took the frog out of his pocket, smiled at it and returned it to the pocket. The frog then cried out, "If you kiss me and turn me back into a princess, I'll stay with you and do ANYTHING you want."

Again the engineer took the frog out, smiled at it and put it back into his pocket. Finally, the frog asked, "What is the matter? I've told you I'm a beautiful princess and that I'll stay with you for a week and do anything you want. Why won't you kiss me?"

The engineer said, "Look, I'm an engineer. I don't have time for a girlfriend, but a talking frog, that's cool."