So I drew for him one of the two pictures I had drawn so often . It was that of the boa constrictor from the outside . And I was astounded to hear the little fellow greet it with , " No , no , no !

A: Why were they surprised at the child 's response ?

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 .

A: How are the Cornell people able to make a balloon out of graphene ?

I forgot . It 's kind of tricky to learn a scary new thing when your heart rate is n't supposed to get much over 140 . I hopped my way sideways off the bike and sat down , practicing the emergency edition of my old biofeedback exercises , until my heart slowed to something more reasonable ; then I tried it again . My leg seemed too heavy to lift a foot onto the pedals , mysteriously heavy the way a reluctant cat can make itself heavier than it should possibly be .

A: What may be the reason why they hopped off of their bike ?

A giant horse . Our favorite sculpture at the park . After the gardens , we spent some time at Taste of Grand Rapids , sampling lots of food from local restaurants . A highlight was some Ethiopian food - stewed lentils and injera , a common bread .

A:
Why is the narrator and their friend so in awe of the sculpture at the park ?