Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant

[AquariuZ]

The mass of poly 2 was incorrect, I set it to 6 and it worked as it should.

Not incorrect, but just very very small because it was a really thin body.

Really small masses or forces are displayed in scientific notation for example 0.00000001 KG

would be displayed by wm2d as: 1.0e-8 kg

[AquariuZ]

Tnx, i repaired it myself also.

Here you can see the flying path of the ball...  I think this is the force we seek......

"may the force be with you" 

But... the force to bring up a ball via a ramp will never be enough to bring it up the the same level it started on right?

[Omnibus]

Yeah, that's how it's usually presented in the standard texts, as not being a true force and that I don't think is correct. The correct way to express it is exactly the way you've explained it -- it's a reaction (a true force) to the force you apply, spending energy for that, to change the direction of motion from linear. Therefore, energy cannot be "extracted" by using centrifugal force.

[mondrasek]

Not incorrect, but just very very small because it was a really thin body.

Really small masses or forces are displayed in scientific notation for example 0.00000001 KG

would be displayed by wm2d as: 1.0e-8 kg

We might need to be conscious of how many significant digits WM2D maintains.  If it is rounding or truncating after, say, 8 digits, having elements with very large and very tiny property values in the same sim might result in situations where a calculation is performed that exceeds this limitation.  Certain physics predictions might actually become truncated in effect.  One way to prevent this problem (if it exists) is to keep all properties in the same logical range, say like from .0001 up to 9999.

Just a thought.

M.

[AquariuZ]

Grinzz...  That is the basic of the KAD system al along..  Those are from the drawings i started with.. , my first prototype i built with my daughter from lego and an old harddisk and a few rails was built on this principle  ( didn't work, in case you're wondering)    It seems that we do not only play with circles, whe also a walking around in them 

Good ideas take a while to sink in, especialy for bubble heads like me

Thanks for insisting