Calabi-Yau manifold

A device for use in raising a wall, includes a footing member, an upright member, having a first end and a second end, a pulley, a flexible cable, the flexible cable having a first end and a second end, a cable guide member, a cable guide offset member, the cable guide offset member having a first end and a second end, and a wall engaging member. The upright member first end is fixed to the footing member and extends in a substantially vertical direction from said footing member. The footing sits on a floor or other generally horizontal surface. The cable guide member is secured to the cable guide offset member first end, and the cable guide offset member second end is fixed to said upright member second end. The flexible cable has its first end secured to the pulley, and its second end secured to the wall engaging member, and is supported between its two ends by the cable guide member.