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You could try PEBBLES which is freeware AFAIK

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Yes, of course this can be done because a suspended object can have larger dimension than the diameter of a string holding it. In fact, the minimum dimension of a suspended object can be many times the diameter of a string suspending it at 1 g. Note that it is this relative size that matters, not the absolute sizes. Since human visual acuity is finite, as ...

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Carbon nanotubes, or similarly manmade materials, might be able to accomplish this in the future. The current record is a tensile strength of 63$\times$10$^{9}$ Pa (Pa = pascals = N/m$^{2}$ or force per area). So if we assume a circular cross section, then the area is defined by 4$\pi$r$^{2}$. We can take the tensile strength and the area formula to find ...

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