February Stundie nominations

TjW said:
I bet his explanation of hydrofoils would be a hoot.
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If you could get him to give one when asked. He avoids most direct questions. That's just one of the reasons I think he's a deliberate troll.
 
Erock said:
I take my hat off to this bloke. He has a weird mixture of accurate and stundie. Read the thread, it is full of stuff like this.

Latest of so, so many comments that cause foreheadus-slappus (to quote the latin:D)

"Yes. bubbles coming up from the sea bed has took ships to the bottom.
When there a in storm froth on the water sea makes boats sit lower in the water, And it also make it imposable to swim in those conditions as no one can swim in white water its not dense enough.

Friction and surface tension keeps planes in the air its a powerful force.

Friction is what turns the moon 1 degree for every 4168 miles it travels
"

davidicke com/forum/showpost.php?p=1059712290&postcount=773
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The bubble bit is right...at least to some extent. The rest? Not so much.
The bubbles resulting in less dense water is a concern for rigs.
 
Further proof that getting elected to public office has nothing to do with mental qualifications.

Texas State representative, Leo Berman, explaining why he is a birther:

“The latest rumor I hear, and I don’t know if this is true or not,” Berman said, “is that he’s used about 25 different Social Security numbers.” Asked where he gets his information, Berman cites e-mails and online video clips. “YouTubes are infallible,” he said.
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http://www.texastribune.org/texas-l...state-rep-leo-berman-leads-charge-from-right/
 
Erock said:
"Yes. bubbles coming up from the sea bed has took ships to the bottom.
When there a in storm froth on the water sea makes boats sit lower in the water, And it also make it imposable to swim in those conditions as no one can swim in white water its not dense enough.

Friction and surface tension keeps planes in the air its a powerful force.

Friction is what turns the moon 1 degree for every 4168 miles it travels
"
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OK, science time. :)

Friction actually is essential to "keeping planes in the air," not that this poor unfortunate has any hope of understanding it. As we all know, wings only generate lift so long as they are not "stalled," and by that I mean the flow over the wing remains attached. Once the flow becomes detached -- either because of too high angle of attack, crazy maneuvers, whatever -- the wing stalls, meaning the flow is diverted away from the wing's surface, and thus there's no longer any meaningful pressure differential across the wing.

This phenomenon is known to fluid dynamicsists as "boundary layer separation." You see, there is actually a thin layer of air between the wing and the freestream, called the boundary layer. This air is nearly stagnant, moving more or less with the wing. Provided our wing is working properly, this boundary layer may grow with speed or angle of attack, but it remains right there on the wing. Push things too hard, and the boundary layer no longer moves with the wing, and we get into unsteady flow, and are no longer flying except in a ballistic sense.

Without this boundary layer, there is no lift. And here's the critical point -- the boundary layer does not form (never "starts") unless there is a little bit of "friction," viz. viscosity.

Doesn't matter how much viscosity there is, so long as it isn't zero. You can get lift from wings in air, you can get lift from hydrofoils in water, etc. But you cannot get lift in a totally friction-free fluid. Luckily, there are no such things except for superfluids, and those are somewhat rare.

Once the flow has "started," it is pretty much self-sustaining. The role of viscosity is thus crucial, but rather limited.

The rest of this poor bloke's post, utter gibberish. Even a monkey banging on a typewriter occasionaly prints something correct.
 
R.Mackey said:
OK, science time. :)

Friction actually is essential to "keeping planes in the air," not that this poor unfortunate has any hope of understanding it. As we all know, wings only generate lift so long as they are not "stalled," and by that I mean the flow over the wing remains attached. Once the flow becomes detached -- either because of too high angle of attack, crazy maneuvers, whatever -- the wing stalls, meaning the flow is diverted away from the wing's surface, and thus there's no longer any meaningful pressure differential across the wing.

This phenomenon is known to fluid dynamicsists as "boundary layer separation." You see, there is actually a thin layer of air between the wing and the freestream, called the boundary layer. This air is nearly stagnant, moving more or less with the wing. Provided our wing is working properly, this boundary layer may grow with speed or angle of attack, but it remains right there on the wing. Push things too hard, and the boundary layer no longer moves with the wing, and we get into unsteady flow, and are no longer flying except in a ballistic sense.

Without this boundary layer, there is no lift. And here's the critical point -- the boundary layer does not form (never "starts") unless there is a little bit of "friction," viz. viscosity.

Doesn't matter how much viscosity there is, so long as it isn't zero. You can get lift from wings in air, you can get lift from hydrofoils in water, etc. But you cannot get lift in a totally friction-free fluid. Luckily, there are no such things except for superfluids, and those are somewhat rare.

Once the flow has "started," it is pretty much self-sustaining. The role of viscosity is thus crucial, but rather limited.

The rest of this poor bloke's post, utter gibberish. Even a monkey banging on a typewriter occasionaly prints something correct.
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There was supposedly an issue with the Tornado jet fighter suffering damage due to bullet casings becoming trapping in the boundary layer and hitting the underside of the aircraft until a different ejection mechanism was designed to push them past the layer. Not sure if this was an urban myth but it's well known in the UK aerospace industry.
 
Cl1mh4224rd said:
I'd be more interested in seeing his explanation for how surface tension keeps planes in the air.

ETA: Not a nomination, but... sweet mother of crap...




At sea level, gravity pulls a boat downward, but under the surface, the boat is suddenly unburdened by Earth's gravity and gains its own significant gravitational field. And pressure is gravity. Wow.

Then, a few posts later, he uses a hovercraft in an attempt to refute that displacement is what causes boats to float.
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Your link asks for a password and also says the forum is undergoing maintenance. I wonder if they've hid the thread.
 
tsig said:
Your link asks for a password and also says the forum is undergoing maintenance. I wonder if they've hid the thread.
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the forum has been having problems off and on for the last few days and they have finally shut down to try to fix them.
 
abaddon said:
http forum.davidicke.com/showpost.php?p=1059723281&postcount=77

Just what the h*ll is underwater water?
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Well, technically, that'd be all the water in the world, except for the very top layer of atoms.....:D
 
Horatius said:
Well, technically, that'd be all the water in the world, except for the very top layer of atoms.....:D
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Or just the bottom layer of atoms, because otherwise it would also be overwater water.
 
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