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Duke Engineering's new four stroke "axial" engine

newtboy says...

I'm not sure how much credence I can give the wiki page...I note it claims things that are obviously wrong, like "the design does not have a long lifespan when compared to other engine designs due to large numbers of moving parts" while in fact this motor has far fewer moving parts than normal motors. It did make some good points, like the first one that occurred to me about friction, but also made some bad points such as claiming 'mechanical complexity' as a drawback, while in fact it seems far more simple than normal motors.
"extra complicated machined parts" also exist in normal motors, and can be made fairly cheaply and easily in bulk.
Excess use of oil is an issue, but one they should be able to solve with proper machining and materials. Low RPM is fine for many applications, like a generator, so long as it's efficient it's fine and might even be better. Since you get high torque at low RPM with this design, low RPM seems to be ideal.
They claimed it had comparable horsepower to the same displacement normal motors in the prototype...if true, that point is moot.
Actually, there seems to be less moving mass in this motor, consider the mass of the crank shaft and counterbalances, connecting rods and pistons, the camshaft, rods, lifters, rockers, and valves. This motor only had a compact 'crank' and the connecting rods and pistons, and the output shaft. That's less actually moving to my eye.
The 'potential for explosion' was claimed on Wiki to be a design flaw of the case thickness around the 'crank', which could easily be thickened if it doesn't have to fit inside a torpedo....potential removed.
I'm not saying it's perfect, or necessarily even feasible, but it does seem to have more going for it than you give it credit for and is worth following it's progress to me.

korsair_13 said:

http://en.wikipedia.org/wiki/Revolving_cylinder_engine

Read the last few paragraphs to see that this is basically another "Solar Roadways" situation. E.g. too much hype, not enough practical purpose.

Let's breakdown the problems here: extra complicated machined parts, excess usage of oil (to lube everything up), low rpm and horsepower due to the amount of material needed to move (sure a standard engine might weigh more, but less of it actually moves), additional wear over time, and the potential for explosion with extended use.

Basically, these things are only used in torpedoes, where a massive explosion is the whole point.

Drew Carey - 101 Big Dick Jokes

notarobot says...

I couldn't find a video that didn't cut the sound off at then end, but I found a list for you and posted it here:

1. My dick is so big, there's still snow on it in the summertime.
2. My dick is so big, I went to The Viper Room and my dick got right in. I had to stand there and argue with the doorman.
3. My dick is so big, I have to call it Mr. Dick in front of company.
4. My dick is so big, it won't return Spielberg's calls.
5. My dick is so big, it graduated a year ahead of me from high school.
6. My dick has an elevator and a lobby.
7. My dick has an better credit than I do.
8. My dick is so big, clowns climb out of it when I cum.
9. My dick is so big, it was once overthrown by a military coup. It's now known as the Democratic Republic of My Dick.
10. My dick is so big, it has casters.
11. My dick is so big, I'm already fucking a girl tomorrow.
12. My dick is so big, ships use it to find their way into the harbor.
13. My dick is so big, there was once a movie called Godzilla vs. My Dick
14. My dick is so big, it lives next door.
15. My dick is so big, I entered it in a big-dick contest and it came in first, second, and third.
16. My dick is so big, it votes.
17. My dick is a better dresser than I am.
18. My dick is so big, it has a three-picture deal.
19. My dick is so big that the head of it has only seen my balls in pictures.
20. My dick is so big, Henry Aaron used it to hit his 750th home run.
21. My dick runs the 440 in fifteen seconds.
22. My dick is the Walrus, koo koo ga joob.
23. No matter where I go my dick always gets there first.
24. My dick takes longer lunches than I do.
25. My dick contributed $50,000 to the Democratic National Committee.
26. My dick was once the ambassador to China.
27. My dick is so big, it's gone condo.
28. My dick hit .370 in the minors before it hurt its knee.
29. My dick was almost drafted by the Cleveland Browns, but Art Modell didn't want a bigger dick than he was on the team.
30. My dick is so big, I use the Eiffel Tower as a French tickler.
31. It's so big, when it rains the head of my dick doesn't get wet.
32. My dick is so big, I could wear it sas a tie if I wasn't so aftaid of getting a hard-on and killing myself.
33. My dick is so big, I have to use an elastic zipper.
34. My dick is so big, it has feet.
35. My dick is so big, a homeless family lives underneath it.
36. My dick is so big, it takes four fat women and a team of Clydesdales to jack me off.
37. My dick is so big, my mother was in labor for three extra days.
38. My dick is so big, they use the bullet train to test my condoms.
39. My dick is so big, it has investors.
40. My dick is so big, it seats six.
41. My dick is so big, I use a hula hoop as a cock ring.
42. My dick is so big, we use it at parties as a limbo pole.
43. My dick is so big, King Kong is going to crawl up it in the next remake.
44. My dick is so big, it has an opening act.
45. My dick is so big I can fuck an elevator shaft.
46. My dick is so big, it has its own Wheaties box.
47. My dick is so big, I have to cook it breakfast in the mornings.
48. My dick is so big, the city had to carve a hole in the middle of it so cars could get through.
49. My dick is so big, every time I get hard I cause a solar eclipse.
50. My dick is so big, it only plays arenas.
51. If you cut my dick in two, you can tell how old I am.
52. My dick was once set on fire for a Dino DiLaurnetis movie.
53. My dick is so big, it needs an airplane warning light.
54. My dick is so big, Trump owns it.
55. My dick is so big, that we're all a part of it, and it's all a part of us.
56. My dick is so big, I can never sit in the front row.
57. My dick is so big, it has its own dick. And even my dick's dick is bigger than your dick.
58. My dick is so big, you can't blow me without a ladder.
59. My dick is so big, it only does one show a night.
60. My dick is so big, you can ski down it.
61. My dick is so big, it has an elbow.
62. My dick is so big, I have to check it as luggage when I fly.
63. My dick is so big, it has a personal trainer.
64. My dick is so big, that right now it's in the other room fixing us drinks.
65. My dick is so big, it has a retractable dome.
66. My dick is so big, it has stairs up the center like the Statue of Liberty.
67. My dick is so big, there's a sneaker named "Air My Dick."
68. My dick is so big, I'm its bitch.
69. My dick is so big, it's against the law to fuck me without protective headgear.
70. My dick is so big, I could fuck a tuba.
71. My dick is so big, Stephen Hawking has a theory about it.
72. My dick is so big, it has its own gravity.
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74. My dick is so big, it's impossible to see all of it without a satellite.
75. The inside of my dick contains billions an dbillions of stars.
76. My dick is so big, it has a spine.
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82. My dick is so big, it has its own page in the Sierra Club calendar.
83. My dick is so big, it has a fifty-yard line.
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95. My dick is so big, when I get hard my eyebrows get pulled down to my neck.
96. My dick is so big, you're standing on it.
97. My dick is so big, it only comes into work when it feels like it.
98. My dick is so big, it plays golf with the president.
99. My dick is so big, it charges money for its autograph.
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101. My dick is so big, it's right behind you.

lucky760 said:

Hey, I got robbed. Was that all 101? It seems to be cut off.

John Oliver Leaves GM Dismembered in Satans Molten Rectum

Sagemind says...

Actually, this is true, but it's also only one of the recall items that GM has issued Recalls for this year.

"It recalled 8,208 of its 2014 cars on May 7, for example, because they might have rear brakes on the front wheels."

"GM says it has informed regulators about two more recalls imminent but not yet announced. The latest batch includes safety belt, air bag, transmission and electrical issues in a range of midsize sedans, full-size crossovers and SUVs, and pickups."


GM's U.S. recalls this year

Below are General Motors' recall of vehicles in the U.S. since Jan. 1

Date, no. of U.S. vehicles, models affected, recall defect

- Jan. 13: 324,970 of the 2014 Chevrolet Silverado and 2014 GMC Sierra for overheated exhaust parts

- Feb. 7 and 25: 1,367,146 of the 2005-07 Chevrolet Cobalt, 2006-07 Chevrolet HHR, 2005-07 Pontiac G5, 2006-07 Pontiac Solstice, 2003-07 Saturn ION, 2007 Saturn Sky, 2007 Opel GT, 2007 Daewoo G2X for ignition switch

- Feb 20: 355 of the 2014 Buick Enclave, LaCrosse, Regal and Verano; 2014 Chevrolet Cruze, Impala, Malibu and Travers; 2014 GMC Acadia for transmission shift cable adjuster

- March 17: 63,903 of the 2013-14 Cadillac XTS for brake vacuum booster

- March 17: 303,013 of the 2009 Chevrolet Express and GMC Savana for airbag

- March 17: 1,178,407 of the 2008-13 Buick Enclave, 2008-13 Chevrolet Traverse, 2008-13 GMC Acadia, 2008-10 Saturn Outlook for airbag

- March 17: 656 of the Cadillac ELR for electronic brake control

- March 28: 823,788 of the 2008-11 Chevrolet HHR, 2008-10 Chevrolet Cobalt, 2008-10 Pontiac G5, 2008-10 Pontiac Solstice, 2008-10 Saturn Sky, 2008-10 Opel GT, 2008-09 Daewoo G2X for ignition switch

- March 28: 174,046 of the 2013-14 Chevrolet Cruze for front axle shaft

- March 28: 489, 936 of the 2014 Chevrolet Silverado, 2014 GMC Sierra, 2015 Chevrolet Tahoe and Suburban, 2014 GMC Yukon and Yukon XL for oil cooler fitting.

- March 31: 1,340,447 of the 2004-06 Chevrolet Malibu and Malibu Maxx, 2004-06 Pontiac G6, 2004-07 Saturn Ion, 2008-09 Chevrolet Malibu, 2008-09 Pontiac G6, 2008-09 Saturn Aura, 2010 Cobalt, 2009-10 Chevrolet HHR for electric power steering

- April 9: 2,191,014 of the 2005-10 Chevrolet Cobalt, 2006-11 Chevrolet HHR, 2007-10 Pontiac G5, 2006-10 Pontiac Solstice, 2003-07 Saturn ION, 2007-10 Saturn Sky for ignition key cylinder

- April 24: 50,571 of the 2013 Cadillac SRX for acceleration lag

- April 19: 23,249 of the 2009-10 Pontiac Vibe (built by Toyota) for air bags

- April 24: 51 of the 2015 Chevrolet Silverado HD and 2014 GMC Sierra HD for diesel transfer pump

- April 29: 51,640 of the 2014 Chevrolet Traverse, 2014 GMC Acadia and 2014 Buick Enclave for inaccurate fuel gauge

- April 29: 56,214 of the 2007-08 Saturn Aura for shift cable

- May 7: 8,208 of the 2014 Chevrolet Malibu and 2104 Buick Lacrosse for brake rotors

- May 14: 111,889 of the 2005-07 Corvette for headlight low beams

- May 14: 19,225 of the 2014 Cadillac CTS for windshield wipers

- May 14: 140,067 of the 2014 Malibu for brake boost

- May 14: 2,440,524 of the 2004-12 Chevrolet Malibu, 2004-07 Malibu Maxx, 2005-10 Pontiac G6 and 2007-10 Saturn Aura for brake lamps

- May 14: 477 of the 2014 Chevrolet Silverado and 2015 Chevrolet Tahoe for steering tie-rod

- May 16: 1,402 of the 2015 Cadillac Escalade for passenger air bag

- May 19: 1,339,355 of the 2009-10 Saturn Outlook, 2009-14 Chevrolet Traverse, 2009-14 GMC Acadia and 2009-14 Buick Enclave for front seat belts

- May 19: 58 of the 2015 Chevrolet Silverado HD and 2015 GMC Sierra HD for loose fuse block

- May 19: 1,075,102 of the 2004-08 Chevrolet Malibu and 2005-08 Pontiac G6 for shift cable (expands April 29 Saturn Aura recall)

Total 18,666,842
( http://www.usatoday.com/story/money/cars/2014/05/20/gm-recalls-fine-goverment/9329481/ )

scheherazade said:

For anyone that hasn't followed what this is about...

This affair was actually about 1 specific issue :
The detent in the key socket rotator was not as strong as it should have been.

( --- Sniped ---)

-scheherazade

Truck Spills Load on Russian Highway

Truck Spills Load on Russian Highway

Truck Spills Load on Russian Highway

Interesting Way To Launch Fireworks

oritteropo says...

The description from one of the other slingshot rocket launcher vids is:


Launching rockets in Germany requires all kinds of permits and licenses nobody ever gets. But for just 48 hours each year, the rules change. During these two days, every adult person is allowed to blast away with rockets and fire crackers!

The Slingshot Channel MUST take advantage of this once-in-a-year time slot. This time, we built a 2,5 meters high rubber based launch tower, capable of launching an unlit rocket about 50 meters up in the air! Add these 50 meters to the 60-80 meters that the rockets achieve by means of their powder charge, and you get some serious total height.

Of course many things can go wrong. The flimsy wooden shafts are not made to endure the stress of 50 kilogramms (110 lb) of a draw force applied by the rubber bands, and can break right in the barrel of the launcher. Also, if the timing of the fuse is bad and the charge ignites when the nose of the rocket is already pointed downwards, then the rocket will be propelled downwards and explose at ground level - effectively a surface to surface missile.

The Slingshot Channel tests all this... come and see the results!


It seems to be the season for it, people here are still letting off illegal fireworks 24 hours after New Years Eve (and they started several weeks before Christmas!).

That video also explains what's going on, it was his test run during the day:


Royals - Walk off the Earth cover

Accidental Vagina Stadium in Qatar

radx says...

Not sure if it was intentional or if the architect cocked it up. Either way, they got shafted, that's for sure.

As for the interior, I'd have to decline the tour. Being stuck inside a phallus-shaped house of psychosis might just be a similar to having a camera shoved up your urethra.

chingalera said:

It's a Christian Science church so there's a good chance they only realized what they had done after it was constructed. Love to see the interior.

Carbon Fiber Hammock Bathtub (Engineering Talk Post)

lucky760 says...

No, no remodeling for me. Just seeing some interesting stuff at the Homes and Hues site.

There's a lot of fascinating content there. See the outdoor private toilet encased in a glass booth, surrounded by a huge private garden and tall privacy gate, for example. Also, there's a crazy bathroom in a high-rise building with a completely transparent floor, like at the top of an empty elevator shaft or something.

Cool stuff.

eric3579 said:

Saw your recent shower video post and thought maybe luckys remodeling a bathroom?

Million American Jobs Project

ChaosEngine says...

Yeah, not gonna work.

It *would* work, if there was a strong middle class with purchasing power, but hmmmm, I wonder what happened to that middle class? Oh yeah, they got out sourced.

Consumers actually don't have that much power, it's why they shafted so regularly.

Apple Creating Technology To Help Cops Hide Police Brutality

chingalera jokingly says...

They're mostly already pissed-off mostly, it's simply not wise to agitate them to some unreasonably hind-brained level. What are cops if not the brightest bulbs in the mine shaft, eh?

song77 said:

"If you really want to piss of a police officer the best way to do it is take out your smart phone"
Smart move, why would u want to piss of the police

News Reporter Draws Penis

Russell Brand on MSNBC Mocking Media

Drive the Ball Further with this Unique Swing



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Beggar's Canyon