04:3504:35, 10 September 2016diffhist+173
Polystyrene
Removed a dead, non-notable external link and updated it as a citation in the article. Also added a new external link.
00:2000:20, 11 June 2010diffhist+13
Space elevator
Not so sure this belongs in the opening, but fixed it up anyway. Dosage depends on shielding, also it is too early to know what "most types" of cargo would be.
23:1223:12, 10 June 2010diffhist−145
Space elevator
True in the past, but recent concepts, while still massive, are not "impossibly massive". Recent concepts require only a small number of flights to assemble. Sp. strength & modulus are primary today.
04:3504:35, 10 September 2016diffhist+173
Polystyrene
Removed a dead, non-notable external link and updated it as a citation in the article. Also added a new external link.
00:2000:20, 11 June 2010diffhist+13
Space elevator
Not so sure this belongs in the opening, but fixed it up anyway. Dosage depends on shielding, also it is too early to know what "most types" of cargo would be.
23:1223:12, 10 June 2010diffhist−145
Space elevator
True in the past, but recent concepts, while still massive, are not "impossibly massive". Recent concepts require only a small number of flights to assemble. Sp. strength & modulus are primary today.