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Kamala Harris - Steve - Jul 22, 2024 - 7:23am
 
Name My Band - GeneP59 - Jul 22, 2024 - 7:23am
 
Radio Paradise Comments - GeneP59 - Jul 22, 2024 - 7:13am
 
NYTimes Connections - islander - Jul 22, 2024 - 7:07am
 
Wordle - daily game - islander - Jul 22, 2024 - 7:04am
 
Things You Thought Today - oldviolin - Jul 22, 2024 - 6:39am
 
NY Times Strands - Proclivities - Jul 22, 2024 - 6:22am
 
2024 Elections! - sirdroseph - Jul 22, 2024 - 4:49am
 
Today in History - DaveInSaoMiguel - Jul 22, 2024 - 2:22am
 
Trump - Steely_D - Jul 21, 2024 - 10:38pm
 
Kamala Harris for Pres ? - Beaker - Jul 21, 2024 - 8:02pm
 
Joe Biden - kcar - Jul 21, 2024 - 7:56pm
 
Israel - R_P - Jul 21, 2024 - 7:16pm
 
Mixtape Culture Club - Isabeau - Jul 21, 2024 - 4:11pm
 
Jon Stewart interview - KurtfromLaQuinta - Jul 21, 2024 - 3:08pm
 
Acoustic Guitar - oldviolin - Jul 21, 2024 - 1:44pm
 
Musky Mythology - R_P - Jul 21, 2024 - 1:21pm
 
Play the Blues - oldviolin - Jul 21, 2024 - 10:20am
 
Song of the Day - oldviolin - Jul 21, 2024 - 8:51am
 
Gardeners Photos - KurtfromLaQuinta - Jul 21, 2024 - 7:39am
 
What Are You Going To Do Today? - KurtfromLaQuinta - Jul 21, 2024 - 7:36am
 
New Music - R_P - Jul 20, 2024 - 8:36pm
 
What makes you smile? - oldviolin - Jul 20, 2024 - 7:49pm
 
The Human Condition - oldviolin - Jul 20, 2024 - 7:44pm
 
Bug Reports & Feature Requests - ladron - Jul 20, 2024 - 7:26pm
 
• • • The Once-a-Day • • •  - oldviolin - Jul 20, 2024 - 7:22pm
 
July 2024 Photo Theme - Summer - oldviolin - Jul 20, 2024 - 7:02pm
 
Banksy! - R_P - Jul 20, 2024 - 5:16pm
 
YouTube: Music-Videos - oldviolin - Jul 20, 2024 - 5:05pm
 
Republican Party - thisbody - Jul 20, 2024 - 3:58pm
 
USA! USA! USA! - R_P - Jul 20, 2024 - 1:43pm
 
Project 2025 - Isabeau - Jul 20, 2024 - 11:45am
 
RightWingNutZ - rgio - Jul 20, 2024 - 10:39am
 
COVID-19 - Isabeau - Jul 20, 2024 - 6:40am
 
Climate Change - Isabeau - Jul 20, 2024 - 6:39am
 
Gotta Get Your Drink On - Steely_D - Jul 19, 2024 - 8:42pm
 
favorite love songs - oldviolin - Jul 19, 2024 - 7:38pm
 
The Republican Convention - Red_Dragon - Jul 19, 2024 - 6:37pm
 
Positive Thoughts and Prayer Requests - oldviolin - Jul 19, 2024 - 4:50pm
 
Russia - R_P - Jul 19, 2024 - 2:49pm
 
The Obituary Page - GeneP59 - Jul 19, 2024 - 12:00pm
 
Solar / Wind / Geothermal / Efficiency Energy - sunybuny - Jul 19, 2024 - 7:02am
 
Vinyl Only Spin List - hialtidude - Jul 19, 2024 - 6:58am
 
Europe - thisbody - Jul 18, 2024 - 10:59pm
 
260,000 Posts in one thread? - oldviolin - Jul 18, 2024 - 8:43pm
 
Poetry Forum - oldviolin - Jul 18, 2024 - 8:40pm
 
Living in America - black321 - Jul 18, 2024 - 8:14pm
 
Lyrics that are stuck in your head today... - oldviolin - Jul 18, 2024 - 10:28am
 
kurtster's quiet vinyl - kurtster - Jul 17, 2024 - 7:45pm
 
What the hell OV? - oldviolin - Jul 17, 2024 - 2:04pm
 
Best Song Comments. - q4Fry - Jul 17, 2024 - 7:32am
 
Rhetorical questions - sunybuny - Jul 17, 2024 - 7:29am
 
What questions would you like to answer for the world? - oldviolin - Jul 16, 2024 - 5:43pm
 
Democratic Party - Red_Dragon - Jul 16, 2024 - 4:48pm
 
Race in America - Red_Dragon - Jul 16, 2024 - 3:53pm
 
Live Music - skyguy - Jul 16, 2024 - 3:44pm
 
Guns - Red_Dragon - Jul 16, 2024 - 3:43pm
 
Gimmie 5 Kurt! - thisbody - Jul 16, 2024 - 12:30pm
 
China - thisbody - Jul 16, 2024 - 12:05pm
 
Bear! - Beaker - Jul 16, 2024 - 6:43am
 
Favorite Quotes - Isabeau - Jul 15, 2024 - 3:43pm
 
Words that should be put on the substitutes bench for a year - Isabeau - Jul 15, 2024 - 12:25pm
 
The Truth About (Modern) Popular Music - Proclivities - Jul 15, 2024 - 8:18am
 
Please don't ban me, but: Taylor Swift... - sunybuny - Jul 15, 2024 - 4:55am
 
Pernicious Pious Proclivities Particularized Prodigiously - R_P - Jul 14, 2024 - 12:52pm
 
Media Bias - Beaker - Jul 14, 2024 - 9:46am
 
what the hell, miamizsun? - oldviolin - Jul 14, 2024 - 7:51am
 
AH! There's an elephant in the room! - Red_Dragon - Jul 13, 2024 - 3:42pm
 
Outstanding Covers - DaveInSaoMiguel - Jul 13, 2024 - 12:49pm
 
Evolution! - R_P - Jul 13, 2024 - 10:34am
 
Eclectic Sound-Drops - oldviolin - Jul 13, 2024 - 10:23am
 
RP on Mac Just Stopped Working - tourtelot - Jul 12, 2024 - 9:35pm
 
Are they married yet? YES THEY ARE! - Manbird - Jul 12, 2024 - 2:51pm
 
Tech & Science - Manbird - Jul 12, 2024 - 2:46pm
 
Classic TV Curiosities - Proclivities - Jul 12, 2024 - 12:50pm
 
Index » Radio Paradise/General » General Discussion » Science is bullsh*t Page: 1, 2, 3 ... 15, 16, 17  Next
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GeneP59

GeneP59 Avatar

Location: On the edge of tomorrow looking back at yesterday.
Gender: Male


Posted: May 22, 2024 - 4:16pm

 Beaker wrote:

Exciting news! The turbo-encabulator has now reached a high level of development, and it’s being successfully used in the operation of novertrunnions.




That guy is trying to steal my electronic thing-a-mabob held together by a which-a-macaullic in conjunction with the hand made plastic dohickey and pressurized gronasteel that can circumnavigate the isolated zip skimmer every 57.5 Quadra-second.

This is why we can never have anything nice.
Beaker

Beaker Avatar

Location: Your safe space


Posted: May 21, 2024 - 3:30pm

Exciting news! The turbo-encabulator has now reached a high level of development, and it’s being successfully used in the operation of novertrunnions.

oldviolin

oldviolin Avatar

Location: esse quam videri
Gender: Male


Posted: May 15, 2024 - 11:44am


Lazy8

Lazy8 Avatar

Location: The Gallatin Valley of Montana
Gender: Male


Posted: May 15, 2024 - 8:02am

 ScottFromWyoming wrote:
From the comments on the Manley video, “models or analogies that will get us by until you have an interest or need for more accuracy”

I have a feeling that NDGT was not teaching an upper-level course in physics there. You need a 20-second bit on how wings work to generate lift, there you go. Manley's attempted point that the molecules don't form a pact and agree to meet up at the other edge of the wing is pretty juvenile.

Considering how charmingly pedantic Tyson can be he deserves to be called out on this, especially since the misconception is so common.

Looking forward to him looking up the actual cause and making another video setting the record straight.
ScottFromWyoming

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Location: Powell
Gender: Male


Posted: May 15, 2024 - 7:56am

 Beaker wrote:

In which Neil deGrasse Tyson spews nonsense ... and gets used as an example of what's going wrong with teaching the physics of flying

Scott Manley on the fallacy of equal transit theory:






From the comments on the Manley video, “models or analogies that will get us by until you have an interest or need for more accuracy”

I have a feeling that NDGT was not teaching an upper-level course in physics there. You need a 20-second bit on how wings work to generate lift, there you go. Manley's attempted point that the molecules don't form a pact and agree to meet up at the other edge of the wing is pretty juvenile.

But having waded into uncharted territory (for me) I'm saving this link for later: NASA Beginner's Guide to Aeronautics


buddy

buddy Avatar

Location: Rocky Mountains
Gender: Male


Posted: May 14, 2024 - 8:11pm

 oldviolin wrote:


Last I heard he was down in Truth Or Consequences New Mexico selling time shares to off- shore investors and snake oil antidote supplements at various and sundry online church socials...


At least he’s being productive.

Beaker

Beaker Avatar

Location: Your safe space


Posted: May 14, 2024 - 3:58pm

In which Neil deGrasse Tyson spews nonsense ... and gets used as an example of what's going wrong with teaching the physics of flying
Scott Manley on the fallacy of equal transit theory:




KurtfromLaQuinta

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Location: Really deep in the heart of South California
Gender: Male


Posted: May 14, 2024 - 3:26pm

 oldviolin wrote:
  I am not surprised.
Going back to the beginning of this thread is a hoot. Shout out to all the MIA

There's lots of those.
Surprising how many of us are still alive.

Alchemist

Alchemist Avatar

Location: San Jose, CA
Gender: Male


Posted: May 14, 2024 - 2:52pm

 ScottFromWyoming wrote:
 Beaker wrote:

Yep.  But I draw a different outcome. In the real world, the wheels allow the jet to move down the runway, propelled by the engines.  Without wheels, the aircraft can not move (easily).  Stop all movement (bolt the aircraft to the ground, or treadmill cancels out the wheels) and the jet does not move - no matter how much thrust the engines produce.  No movement - no airflow over the wings.  QED ? *ignoring any destructive forces that would show up in the real world
Right, the wheels "freewheel" and provide no thrust or resistance (unless braking). So as far as the wheels having anything to do with the plane taking off, no connection.
 
The plane will move forward and fall off the treadmill regardless of the speed of the tread.  Whether it can take off depends on how much damage it sustains when it takes off.
oldviolin

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Location: esse quam videri
Gender: Male


Posted: May 14, 2024 - 11:45am

 buddy wrote:

I miss winter.  Curious if he ever got laid.




Last I heard he was down in Truth Or Consequences New Mexico selling time shares to off- shore investors and snake oil antidote supplements at various and sundry online church socials...

buddy

buddy Avatar

Location: Rocky Mountains
Gender: Male


Posted: May 14, 2024 - 11:34am

 winter wrote:


Science hasn't gotten me laid yet. Also it doesn't explain why poetry is nice.

Down with science!

I miss winter.  Curious if he ever got laid.


oldviolin

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Location: esse quam videri
Gender: Male


Posted: May 14, 2024 - 11:26am

 betterdaze wrote:
[I claim credit for this thread. ]
 I am not surprised.
Going back to the beginning of this thread is a hoot. Shout out to all the MIA
oldviolin

oldviolin Avatar

Location: esse quam videri
Gender: Male


Posted: May 14, 2024 - 10:45am

And because this is fun stuff, let's look at the obverse. If the jet were at pre touchdown speed as landing, that speed right before it landed would render the wheels on which the matched speed conveyor it landed perfectly irrelevant, for a moment; negating the instant friction and slowdown caused by the initial contact. Then having dodged the zero to lift speed co-efficient we could kick the whole conveyor rig out from under and it could hover in bliss...








oldviolin

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Location: esse quam videri
Gender: Male


Posted: May 14, 2024 - 10:16am

 ScottFromWyoming wrote:


Sure. Just like every day and every plane. The wheels provide a frictionless surface from which to get up to speed.


see that edit lol
oldviolin

oldviolin Avatar

Location: esse quam videri
Gender: Male


Posted: May 14, 2024 - 10:15am

 ScottFromWyoming wrote:


Right, the wheels "freewheel" and provide no thrust or resistance (unless braking). So as far as the wheels having anything to do with the plane taking off, no connection.



No connection at all. However, there is no way to go from zero to lift/flight speed without all the speeds in between which would be face plant territory when unsupported by volumes of air forthwith lolol


ScottFromWyoming

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Location: Powell
Gender: Male


Posted: May 14, 2024 - 10:15am

 oldviolin wrote:


The problem is presented as being on wheels and that somehow being a precondition to able flight, which of course it isn't. But, if it were just hovering there without wheels, and since flight would not be instantaneous, it would need to be able to convert air to lift via forward momentum. or something...



Sure. Just like every day and every plane. The wheels provide a frictionless surface from which to get up to speed.
ScottFromWyoming

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Location: Powell
Gender: Male


Posted: May 14, 2024 - 10:11am

 Beaker wrote:

Yep.  But I draw a different outcome.

In the real world, the wheels allow the jet to move down the runway, propelled by the engines.  Without wheels, the aircraft can not move (easily).  Stop all movement (bolt the aircraft to the ground, or treadmill cancels out the wheels) and the jet does not move - no matter how much thrust the engines produce.  No movement - no airflow over the wings.  QED ?

*ignoring any destructive forces that would show up in the real world



Right, the wheels "freewheel" and provide no thrust or resistance (unless braking). So as far as the wheels having anything to do with the plane taking off, no connection.

oldviolin

oldviolin Avatar

Location: esse quam videri
Gender: Male


Posted: May 14, 2024 - 10:09am

 Beaker wrote:


It is a challenging concept.  I've managed to find myself on both sides of the argument.  The key ingredient: - is there, or is there not airflow over the wings?  No airflow, no liftoff (right? lol).

Beyond that, it's a bunch of wheels going very fast.  And, four engines running up to full speed - think how that works in a static jet engine test stand.  Those positing that a treadmill going at warp speed will create the airflow needed over the wings ... these are facts not in evidence, as the lawyerly types would say.

* assumes said treadmill can both create the speeds necessary and tolerate the mechanical abuse

I stand ready for insta-humiliation.




The problem is presented as being on wheels and that somehow being a precondition to able flight, which of course it isn't. But, if it were just hovering there without wheels, and since flight would not be instantaneous, it would need to be able to convert air to lift via forward momentum. or something...

Of course, that is the taking off scenario.

If it were already at cruising speed and somebody managed to get a flying conveyor under it, well, the point would be mute...lol

Beaker

Beaker Avatar

Location: Your safe space


Posted: May 14, 2024 - 9:58am

 ScottFromWyoming wrote:


I say to ignore the wheels and belt, that's the fantasy that gets in the way of a straightforward problem: If the plane's on a frictionless surface, or hovering midair thru some spaceship magic, and the jets provide thrust, that plane is taking off. 

Yep.  But I draw a different outcome.

In the real world, the wheels allow the jet to move down the runway, propelled by the engines.  Without wheels, the aircraft can not move (easily).  Stop all movement (bolt the aircraft to the ground, or treadmill cancels out the wheels) and the jet does not move - no matter how much thrust the engines produce.  No movement - no airflow over the wings.  QED ?

*ignoring any destructive forces that would show up in the real world

ScottFromWyoming

ScottFromWyoming Avatar

Location: Powell
Gender: Male


Posted: May 14, 2024 - 9:49am

 Beaker wrote:


It is a challenging concept.  I've managed to find myself on both sides of the argument.  The key ingredient: - is there, or is there not airflow over the wings?  No airflow, no liftoff (right? lol).

Beyond that, it's a bunch of wheels going very fast.  And, four engines running up to full speed - think how that works in a static jet engine test stand.  Those positing that a treadmill going at warp speed will create the airflow needed over the wings ... these are facts not in evidence, as the lawyerly types would say.

* assumes said treadmill can both create the speeds necessary and tolerate the mechanical abuse

I stand ready for insta-humiliation.




I say to ignore the wheels and belt, that's the fantasy that gets in the way of a straightforward problem: If the plane's on a frictionless surface, or hovering midair thru some spaceship magic, and the jets provide thrust, that plane is taking off. 
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