Difference between revisions of "User:Vincecate/Models/ShortCylinder"
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− | First is with 20 lbs hanging ballast. | + | First is with 20 lbs hanging ballast. Video shot from tripod on nearby pier. |
<youtube v="ODw9kGQhfZ8" /> | <youtube v="ODw9kGQhfZ8" /> | ||
− | And as seen from the water. | + | And as seen from the camera I am holding in the water. |
<youtube v="Vyi67NwzS-8" /> | <youtube v="Vyi67NwzS-8" /> |
Revision as of 21:43, 6 August 2008
First is with 20 lbs hanging ballast. Video shot from tripod on nearby pier.
<youtube v="ODw9kGQhfZ8" />
And as seen from the camera I am holding in the water.
<youtube v="Vyi67NwzS-8" />
This is with a second bucket underwater. Provides more inertia from the water. There are 4 ropes connecting the two buckets. Idea is the weights and ropes keep the bottom bucket upright and the 4 ropes keep the top bucket at the same orientation as the bottom bucket. Also, if we had slip-forms to make one concrete cylinder for the top, making a second for the bottom might not be too costly. This seems to work better than simple 20 lbs ballast.
<youtube v="vX2vPIygBok" />
Double bucket with weight on top (I think 5 lbs but maybe 2.5 lbs).
<youtube v="g3-FLqfP3rw" />
This next video shows the underwater view of a hanging ballast experiment. This is with 2 steel weights of 10 lbs each.
<youtube v="6dL4gd1o7rw" />
This video shows some dry land testing. First I just swing it like it swung in the water. Next we balance it on a bar and see how much weight on a side it takes to tip it. Then we try 4 separate 5 lbs weights (so same total of 20 lbs). This is not stable at all and can not even balance the bucket.
<youtube v="zqSjDemhT7g" />