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6 year old suspended for bringing Cub Scout knife to school

longde says...

I disagree with the comment at the end: that was exactly the face of trouble, the profile that has shot up schools like Columbine. And I am sure with home schooling, this boys will go further in that direction.

No outrage here. I don't want my kid exposed to weapons of any sort at school. I don't care if there is a spork attached to it.

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dannym3141 (Member Profile)

ReverendTed says...

In reply to this comment by dannym3141:
c) If you introduced a 10mph tailwind to the 10mph treadmill scenario you are basically doubling the windspeed. Please read my latest post and hopefully you will see this and understand what i'm about to write. If you did this, the cart would go flying off the treadmill (assuming the cart behaves in a proportionate way at all windspeeds). If it landed on the floor on its wheels and in the right direction, and the windspeed of 10mph was still present, then the cart would behave as it did on the treadmill because now the wind is the only source of power.

Thanks for the reply! It's a fascinating phenomenon.

I think I might need to clarify what my last paragraph was meant to suggest:
I was suggesting a scenario where the device is on the treadmill and is allowed to "run off" the end (no spork intervention), where it would be slightly propelled by the propeller as it moved on the ground but would coast to a stop.
And then into that scenario (device running in dead air) imagine the introduction of a tailwind.

I think that's essentially what you suggested, but it helps me get my mind around it if I introduce the tailwind AFTER the device is off the treadmill.

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