Split Thread The validity of classical physics (split from: DWFTTW)

[semper]

No need, Dempster. The power out cannot exceed the power in. The prop and wheels are directly mechanically connected, so the force from wheel and prop must be the same. The velocity of the wheel is determined by the belt, Dumpster.

Still waiting Mr Humber;

The power input to the cart is....

 

[mender]

No. Gears have no power gain. Try again.

C'mon, you're not that dense. BIG balloon equals MORE power. Skater and balloon now go faster than 50% windspeed. There, that part solved.

MOTION ratio change equals MORE speed for SAME power. 2:1 ratio cuts speed of balloon in half, doubles skater speed to OVER windspeed. There, that part solved.

Follow big words. Learn.

 

[humber]

That is an OK approach for your analysis Humber, "use any equations you like. It won't matter."

But what if we are wanting an actual useful answer, should we not use actual useful equations?

You have free reign. No matter how you try and construe your calculations, they will fail analysis, if your aim is to show motion or work for the cart.

 

[humber]

After the details like air density and coefficient of drag are normalized so that all of the constant terms canceled, 50% is the correct answer.

...and therefore, the skater can only reach windspeed if the coefficient of drag is zero, or the balloon can generate more power than is available.
The force on the skater at maximum velocity, will never be zero.

 

[semper]

You have free reign. No matter how you try and construe your calculations, they will fail analysis, if your aim is to show motion or work for the cart.

So you say the cart can do no work? Interesting Mr Humber. Or do you mean useful work, which work would you like to define?

 

[humber]

C'mon, you're not that dense. BIG balloon equals MORE power. Skater and balloon now go faster than 50% windspeed. There, that part solved.

50% is my 'normalised' value. You can change the coefficients, but the skater will not reach windspeed.

MOTION ratio change equals MORE speed for SAME power. 2:1 ratio cuts speed of balloon in half, doubles skater speed to OVER windspeed. There, that part solved.
Follow big words. Learn.

Big error. Power = force * velocity. Changing the ratios, does not change the power. Gears do not provide more power.

 

[humber]

So you say the cart can do no work? Interesting Mr Humber. Or do you mean useful work, which work would you like to define?

No, I am calling on your explanation.

 

[Dan O.]

Even I could create a sock the admin could never prove ‘I had a hand in,’ so clearly somebody as sharp as spork must know better than to beg us to get them to check him out. Like, he’d be foolish enough to use the same IP he does as spork or what?

You're catching on but you've got it backwards. Who would have thought it would be so contagious.

The second question I’ve wanted to ask for a long time, but kept thinking I’d find the answer. Why haven’t you had one of the carts tested at some university or independent test lab?

Who's going to believe that. It would just look like part of a larger conspiracy. There is one venue coming up that might be conducive to public testing, lots of skeptics hanging around, plenty of hot air; there are some threads in the community section about it.

Aren’t there a lot of people in the physics community that think the cart really can’t go DDWFTTW?

None that still have jobs

 

[RossFW]

You have no interest in drag or cavitation. If you do, look it up yourself.

I did. Negative drag in aerodynamics and cavitation in gasseous systems do not exist.

 

[humber]

You're catching on but you've got it backwards. Who would have thought it would be so contagious.

Who's going to believe that. It would just look like part of a larger conspiracy. There is one venue coming up that might be conducive to public testing, lots of skeptics hanging around, plenty of hot air; there are some threads in the community section about it.

None that still have jobs

There is much talk of sorcery amongst the village folk.

 

[humber]

I did. Negative drag in aerodynamics and cavitation in gasseous systems do not exist.

Good for you.

 

[semper]

So you say the cart can do no work? Interesting Mr Humber. Or do you mean useful work, which work would you like to define?

No, I am calling on your explanation.

Still waiting Mr Humber;

The power input to the cart is....

And I'm calling on yours.

 

[humber]

And I'm calling on yours.

Here is my answer.

 

[Dan O.]

You seem to know that, but where is your support for your claims?

I knows what I knows. We covered 100 pages with 4000 posts to get here. I think the forum would choke if we tried to dump everything on it at once.

 

[recursive prophet]

@Dan_O-Thanks for the reply. Seems whenever I get ready to ask a question things veer off in another direction. Still wish someone would address the continuity issue though.

 

[mender]

I'll check in for new topics. Have fun.

 

[mender]

There is much talk of sorcery amongst the village folk.

So many straight lines, so little time.

 

[humber]

I knows what I knows. We covered 100 pages with 4000 posts to get here. I think the forum would choke if we tried to dump everything on it at once.

Just try one of the claims on your the list.

 

[humber]

So many straight lines, so little time.

History shows that time is not the limiting factor.
Retreating faster than a speeding Dodge.

 

[mender]

Big error. Power = force * velocity. Changing the ratios, does not change the power. Gears do not provide more power.

No error. Power = force * velocity difference. Balloon speed to wind difference increases by the same amount that the skater speed to ground increases (both 2:1). The equation balances and the skater goes faster than the wind. Even you should be able to see both sides of the equation.

How did you put that - power increases to match the load? Think you can apply that?

Follow logic. Learn.