Delicious recent

Animation : y = a sin (b(x - c) ) + d - the influence of "d"

Animation : Vertical Expansions

animation : y = a sin (b(x - c) ) + d - the influence of "b" (smaller than 1)

Animation : y = a sin (b(x - c) ) + d - the influence of "a" (smaller than 1)

@NASA: What will the next generation of human exploration look like? Watch launch animation in HD (warning:642 MB file) http://t.co/E7SASWv9