Practi-Suture/Staple Removal Pad*, size: 2x2in, for removing suture and staples, for closing wounds of the skin, stitching, or suturing, is the most common form of repairing a wound, with 4 staples and 4 sutures ready for removal practice
solar furnace, simple device gives a graphic demonstration of the suns radiative energy, large convex mirror concentrates solar radiation onto a small container of water suspended at the mirrors focal point. In a few minutes, the water boils