A truly fascinating demonstration

[vrand]

Courtesy from Jerry Decker, of Keelynet fame, thanks Jerry

"Hola Folks!

Note in the video how it PROVES unidirectional, inertial, reactionless
thrust.

Jeepers, its Baron Von Munchausen pulling himself out of the swamp by
repeatedly jerking on his bootstraps to jump higher and higher into the
air! Thus the term 'to pull onself up by one's bootstrap.'

Here is the Munchausen 'bootstrap' quote. It is from page 22 of the
edition edited by J. Carswell in 1948.

"I was still a couple of miles above the clouds when it broke, and with
such violence I fell to the ground that I found myself stunned, and in a
hole nine fathoms under the grass, when I recovered, hardly knowing how
to get out again. Looking down, I observed that I had on a pair of boots
with exceptionally sturdy straps. Grasping them firmly, I pulled
(repeatedly) with all my might. Soon I had hoist myself to the top and
stepped out on terra firma without further ado." --With acknowledgement
to R. E. Raspe, Singular Travels, Campaigns and Adventures of Baron
Munchausen, 1786.

Watch this to see it put to practical use;

YouTube - 高速，低è¡�撃，å°�型階段跳èº�ãƒ*ボッムˆï¼ˆè�Šæ±*ç*”）"

Interesting videos showing unidirectional, inertial, reactionless
thrust.

Regards

[Agent.A]

[elias]

Hi vrand

I believe that it is possible and that is why I started this thread: http://www.energeticforum.com/renewa...ropulsion.html

But I didn't quite understand your video posted, was it operating inside a fluid like water?

Do you know the mechanism of its operation?

Thanks
Elias

[broli]

It's a cool looking setup done with some cool equipment.

You need to look at the entire picture though. What matters in this setup is not the apparent double jump one of the two blocks makes. But the center of mass of this setup. If you look at the graphs when one carriage goes up the other goes down in order to keep the center of mass on a parabola.

I'm not saying there is no inertial effect, that can only be revealed by summing both plots which are multiplied by their masses first. That plot will reveal whether the whole system stays on a nice parabola or not.

[vrand]

Hi vrand

I believe that it is possible and that is why I started this thread: http://www.energeticforum.com/renewa...ropulsion.html

But I didn't quite understand your video posted, was it operating inside a fluid like water?

Do you know the mechanism of its operation?

Thanks
Elias

Here is another video of the same setup:

YouTube - 高速，低è¡�撃，å°�型階段跳èº�ãƒãƒœãƒƒãƒ ˆï¼ˆè�Šæ± ç ”）

My thinking is that there is a gyro spinning in that black box in the center mass of the unit, as Gyros have strange properties that could account for this operation.

Any other theories?

Regards

[rave154]

intereesting video,

i used to do a similar thing as a kid.....but on a horizontal rather than vertical plane.,

standing on my skateboard...i would lean forwards...then using stomach muscles etc..... sharply pull my legs forwards till i was almost leaning back..the skateboard ( & myself )..would adavance....i would slowly lean forwards again and repeat....motion without contact from the ground with my feet

[Matthew Jones]

I cannot see anything special in the demonstration (Shoe String analogy).

The vehicle has s motors on the wheels to drive it horizontal.

The assembly mounted on the four poles is a fast stepper motor or pneumatic setup, or both that releases a good bit of energy. The 4 pole are tied to the wheels.
As it rolls towards the obstacle it releases the energy (probably pneumatic) by driving the vehicles mass upward and as result it jumps because the mass of the vehicle is the part that is accelerated.

But what the video most likely trying to show and you may be right with gyroscope is it can keep its balance by quickly raising or lowers its primary mass, and go on to do another obstacle.

I guess that a break through it robotics but its nothing along the lines of your description. People have been doing this very same action for years on skateboards.

good imagination though I always watch the Baron when its on...

Cheers
Matt

[Web000x]

I cannot see anything special in the demonstration (Shoe String analogy).

The vehicle has s motors on the wheels to drive it horizontal.

The assembly mounted on the four poles is a fast stepper motor or pneumatic setup, or both that releases a good bit of energy. The 4 pole are tied to the wheels.
As it rolls towards the obstacle it releases the energy (probably pneumatic) by driving the vehicles mass upward and as result it jumps because the mass of the vehicle is the part that is accelerated.

But what the video most likely trying to show and you may be right with gyroscope is it can keep its balance by quickly raising or lowers its primary mass, and go on to do another obstacle.

I guess that a break through it robotics but its nothing along the lines of your description. People have been doing this very same action for years on skateboards.

good imagination though I always watch the Baron when its on...

Cheers
Matt

I agree with Matt.

[ashtweth]

Most of us usually do . I think this is like Bob Mary's and Hidro's, they show that pressure gradients are far from tapped to potential.

[jibbguy]

This reminds me of the principal behind "sculling".. Which is how the famous Gondoliers' of Venice and many others around the world move their boats. You push with a single oar at the stern of the boat side to side, not along the length as with "rowing".. With the oar "biting" the water in one direction... that force is transfered to the keel of the boat through the pivot point of the oar, and causes forward motion. The return stroke is done with the oar rotated along its axis; so it's blade offers much less water resistance... then when returned to the starting point, the blade is rotated to "bite" again, and the power stroke repeated.

Not as fast as "rowing" perhaps but it works fairly efficiently... Less total energy can possibly be used for the same speed as "rowing"; because there is usually no need to raise the oar out of the water every stroke (and this means the pivot point and length of the oar can change; so it becomes more of a force-converting "lever" than a "balance" as with standard oars)... plus over long periods of time it's easier to stand, and use body weight to help move the oar. "Steering" is usually done by subtle changes in the movements and rotational angle of the oar, incorporated into the strokes.

I think its biggest drawback is that the top speed is self-limited... if the boat is moving too fast, this motion at the stern becomes DRAG.