Eva Spoilers (obviusly)
Such as, how did they make rei
She is a clone of Yui Ikari (Shinji's Mother).
Was it inserting the longinous lance into the first angel (adam) that caused the second impact?
The Spear of Longinus was inserted into LILITH (not Adam). Kaoru says specifically "Lilith" when he reaches the central dogma, since he was tricked.
As for 2nd Impact, this occurred when Man tried to harness the power of the first angel (debateably the second since I've heard Lilith is first) Adam by condensing him into the embryo form (seen in Episode 7 when Kaji delivers Adam to Gendo). The release of all that energy is what caused 2nd impact.
Geez I
know too much about Eva. I'm fairly sure these are correct and not some speculative thing like half of the other things on the internet about Eva (like what it's about, what happens, next etc.).
Daniel ^_^
Ninja Gaijin Productions