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rolling
Rolling is a type of motion that combines rotation (commonly, of an axially symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that, if ideal conditions exist, the two are in contact with each other without sliding.
Rolling where there is no sliding is referred to as pure rolling. By definition, there is no sliding when there is a frame of reference in which all points of contact on the rolling object have the same velocity as their counterparts on the surface on which the object rolls; in particular, for a frame of reference in which the rolling plane is at rest (see animation), the instantaneous velocity of all the points of contact (e.g., a generating line segment of a cylinder) of the rolling object is zero.
In practice, due to small deformations near the contact area, some sliding and energy dissipation occurs. Nevertheless, the resulting rolling resistance is much lower than sliding friction, and thus, rolling objects, typically require much less energy to be moved than sliding ones. As a result, such objects will more easily move, if they experience a force with a component along the surface, for instance gravity on a tilted surface, wind, pushing, pulling, or torque from an engine. Unlike cylindrical axially symmetric objects, the rolling motion of a cone is such that while rolling on a flat surface, its center of gravity performs a circular motion, rather than a linear motion. Rolling objects are not necessarily axially-symmetrical. Two well known non-axially-symmetrical rollers are the Reuleaux triangle and the Meissner bodies. The oloid and the sphericon are members of a special family of developable rollers that develop their entire surface when rolling down a flat plane. Objects with corners, such as dice, roll by successive rotations about the edge or corner which is in contact with the surface. The construction of a specific surface allows even a perfect square wheel to roll with its centroid at constant height above a reference plane.
I have this old Remington 1902 Rolling Block rifle for sale. All original EXCEPT the old steel buttplate was removed and replaced with a rubber butt pad. Its a 7mm Mauser I think which is 7x57mm. Seeing as it was made after 1898 we have to go an FFL dealer to transfer it. My preferred FFL dealer...
Driving home a few minutes ago from the store (needed a sixer of Pub Beer!) and I was flipping the radio and heard what sounded like the song 'LA Woman' by the Doors and I stopped on the station (a Bend classic rock station) BUT then realized it was NOT The Doors but cover of it by some group...
New York State - Remington .50-70 Rolling Block - produced from 1872 to 1873.
Most of these were chambered in .50-70 (a few were in .45-70, but they are rare) with 36-inch barrels, full-length fore-ends held by three bands,
and straight-grip military butt. The rear sling swivel is on the...
I have 2 New Condition 1 Rolling Tactical Gun Cases.
Black one has a few bump marks from moving around but never used.
These hold 2/3 rifles. Depending on what you got.
Black one is great trunk size. FDE is a little big for most cars.
Would trade for a pistol or rifle light, plate carrier...
This is in excellent condition with drawers liners in all drawers with minimal wear to liners.
Top and bottom lock and keys are present.
Locking wheels.
Bottom is Red, 8 drawer.
26.75” w x 18” d x 40.25” tall from ground.
Top is Red, 10 drawer.
26” w 16” d 19.5” h
Serious inquiries only and...
I have a working rolling block rifle in really good condition for its age works as it should with no issue does brake down in two pieces very accurate rifle willing to trade or cash offers pm’s or txt messages only please 599-840-3171. Thank you
Rolling ATV chassis ready for your engine. Would be a great winter project. I got going on this and just never find the time to finish it. A harbor freight 14hp 420 cc engine would be perfect. Has seat belts, seats, roll cage, throttle cable and disc brake installed already. Just needs your...
Well this is one of the most insane things I've seen in a while. It is absolutely astounding that no innocents were hit in this thing. It's also shocking that I didn't see a single patrol rifle in the whole mess. I don't know if that's an officer thing or the department doesn't let them carry...
This is unusual, and very, very cute. There is no maker stamped on the gun. Far as I can determine from the proof marks, it is Spanish. Small and light, it is a pleasure to hold. The bore is excellent; it was obviously shot very little. The rear sight is an abomination. Of further...
I have a fully caged rolling chassis for sale. Summer is here! Ready for your engine. Disc brakes. Roll cage, seat belts, suspension all the way around. I will include motor mount plate. Has a battery mount. $1500 cash. You couldn’t build this yourself for any less money. I’m 6’2 and can fit...
Bought this from a friend ~40 years ago. I don't know who did the work. Fitted with a very heavy (~ 1 1/8" at the muzzle) barrel. Reblued, evidently loosing the serial number in the process. Need I mention recoil is not an issue? Price is without the Leupold Vari-X II 2-7 scope. Add $250...
I have a Milwaukee toolbox I purchased a couple years ago at Home Depot I used it for about a year at work and then got laid off so I brought it home and I have kept my guns and gun cleaning stuff in it it is still in good condition there are minor scratches in couple things here and there but...
Here's my Number 5 Remington Rolling Block saddle ring carbine in 7mm...around turn of the century.
Made in 7mm Spanish, but will fire 7mm Mauser rounds.
In excellent condition with little use. Has only been in our non-smoking, pet-free home. It has a few tiny scratches and some minor rub marks on the edge.
Invacare 6417 Hospital Over Bed Table Height Adjustable with Casters for eating, reading, laptop and hobbies.
Product Description...
https://www.koin.com/news/portland/hardesty-barrels-to-calm-portland-high-speed-shootings/
:s0113:
Isn't this just typical?
In a statement, Hardesty admitted there is “no simple solution” to the shooting spike recorded here and nationwide.
But we'll try one anyway.
... antique rolling block ... I see no markings that help me identify it / good mechanics and bore - fair condition ... $400 or trade ? thanks (plse provide your phone # if interested)