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Engineers at the Callaway Golf Co. redesigned the golf ball by using graphene as part of the ball’s outer cover. The material consists of an ultra-thin (one-atom thick) layer of hexagonal carbon that is 150 times as strong as steel on a per-pound basis, and can be stretched to up to 120% of its length without breaking or deforming. The carbon hexagons apparently flex easily but do not break.
As part of the outer layer, graphene lets the inner core be larger and softer, explains Alan Hocknell, VP of R&D at Callaway. The outer layer also contains a firmer blend of poly butadiene. The larger, softer core...