Since no one else answered i would say if it can get through it separated the bonds, and though it may or may not cause much damage it did something. other wise people could walk through walls
Look up Issac Asimov's The Last Question short story. It is somewhat similar to what you want. http://en.wikipedia.org/wiki/The_Last_Question describes the story though reading it is much better.
One thing i don't think has been mentioned Carbon properly made it is the hardest substance on earth. It is also a very weak substance if need be and very common.
Another thing is even if it is heavy the ship is in space so weight matters little and the mass probably won't be a huge deal just...
of he doesn't learn from you anymore get him books that teach him without you hopefully it isn't for awhile. and if he is really smart and if he does get bored don't force him to learn but he will come back later on his own
You may learn but you cannot publish, at least easily, as Issac asimov said there is no other type of education besides self-education, it is paraphrased of course
Also the Earth moves so to travel time you would only be able to do it by years and well planned out calculations otherwise you would end up in space or in a house, rock.
The force the ground exerts on the object is the same as the force the object exerts on the ground third law of motion the only force downward is gravity so all of it is exerted on the ground.
Why does an object bounce when speaking about momentum and Newton's third law
I would like to say it is because the upward force (the force the object falling enacts on the ground and the ground acts on the object) is greater than the force of gravity, which would be impossible in an object...