Graphene looks like it 's going to be one of the " wonder materials " of the future , and a science team at Cornell University have just demonstrated the world 's smallest balloon made of it .

Question: Why are the scientists so excited about Graphene ?
Answer: The Cornell University scientists believe that the material will lead to big developments .The scientists believe the material is cost - effective .The scientists believe the material is cheap and effective .The scientists believe it is good for armor .