Roll on the 20th June

[DarkStar_DS9]

Hi purepower,

I'm sorry to bring up the lever again, but... if you remember, I asked:

Or let's not use weights hanging from a rope, let's use some bars 200mm x 20mm x 5mm, drill holes into them - for one side, we will drill a hole 20mm from the top, for the other side let's use 30mm from the top - and put that on the axles. I should add that those axles are parallel to the pivot.

Now does that make any difference? I guess I'm asking if the CG will change because one weight is mounted higher than the other.

... and you said:

However, once the weights are allowed to hang below the center axis, things would change. By moving the weights vertically, the center of mass has also shifted vertically. Since the center of mass is now off the axis of rotation, the lever will always rotate so its center of mass is to the lowest possible point possible (directly below the axis of rotation, ie lowest point of energy), similar to how a ball always rolls to the lowest point on a hill.

Lowering the weights below the center axis is similar to lowering the entire lever from the fulcrum. For further description and visual representation, please see post on page 51 where I address the effects of a "slung" lever. And yes, one having them hang at different heights would produce a different effect due to unequal vertical shift contributions from each side (also, like Rusty said, the weight of the rope too would have some effect).

... and I'd LOVE to see the math for that - just can't figure it out by myself. So if it is not too trivial, could you please do me this favour?

Regards,

Rainer

[hansvonlieven]

G'day all,

I have watched the Archer Quinn disaster from the sidelines and have refrained from commenting on his experiment so far.

It is obvious that he has little idea of physics and that his math is questionable to say the least. Add to that his, at times, belligerent posts and it would be pardonable to see him as an ignorant fraudster. Shades of Joe Newman.

Just lately however I have developed a sneaking admiration for the man and have begun seeing him in a somewhat different light. More than anything, it is his reaction to his failure that caused me to re-evaluate the man.

It would have been easy for him to sweep his failure under the carpet by NOT releasing video Nr. 6 and instead pretend to be offended by someone's comment (God knows there were enough of them) and tell us to go to hell.

He did not do this.

Instead, he published his failure, knowing he would invite another round of ridicule.

In an understandable initial reaction he felt like throwing it all in and walk away from the whole project. He documented even this.

Having dealt with his disappointment he picked himself up by his bootstraps and started to examine just what went wrong. He is now trying to correct this. He is actually documenting his attempts at repair.

On top of this is the fact that he put his money and energy into this project without asking for anything other than perhaps recognition of his efforts.

These are not the actions of a fraudster.

He has balls, that is for sure and he has the courage of his convictions. Few men have this to the extend he is demonstrating.

He may be misguided, I don't know. I further don't know if he really had a working device at one stage. It is quite possible he did and did not and still does not understand what made the thing go. What we are witnessing may well be an attempt to re-create something he once fluked.

In that he would not be alone. Howard Johnson claimed to have had a working device at one stage and then tried unsuccessfully for many years to re-create it.

He will discover his errors in regards to physics in due time if he keeps building. There is no better teacher than reality.

I believe now that he is sincere in what he is trying to do and I wish him luck. I can put up with his antics, I have seen worse from people far less dedicated than he is.

Just my two cents worth on the subject.

Hans von Lieven

[helmut]

Hans
I am deeply impressed by your honest words,that you find for Archer.
He is a searcher and inventor and i which, we had more Archer Quinns.

helmut

[Rise of Raven]

Archer didnt fail, he just found  1 way it doesnt work. It make take 10,000 tries, but at least he is trying! I have a feeling the day a breakthrough does happen it will be from a man in his garage, just like most great inventions that changed the world.   

[Xaverius]

All hail to Archer!!!  The New Energy Paradigm prevails!!