| Description | Thanks him for his letter. Does not think that it is clear from what he said that the particles will be captured onto the planet or into circumplanetary orbits - and of course that is the major question in deciding whether satellites can be built this way. Asks him to study the paper by T A Lyttelton that discusses a 'capture radius'. Hopes he gains entry at Cornell, but this is in the hands of their admissions committee and will depend on their decision. |