create nano toolkit
are essentially tiny 3-D jigsaw puzzle pieces.
Scientists are beginning to find shapes that
could make microscopic structures and machines.
Because these molecular puzzle pieces assemble
automatically, manufacturing machines this
way promises to be quick and efficient.
could snowball on Net
English dominates the Web because the Internet was
made in America. The big question is whether that
head start turns out to be a serious long-term advantage.
age shapes Web
Networks like the Web have something in common with
humans -- how they are structured has a lot to do
with aging. You can't stay young, or popular, forever.
show six degrees of separation
What do your relationships with friends and neighbors
have in common with circuits on a computer? As it
turns out, a lot.
of gold makes tiny transistor
Chop a tiny tube of carbon atoms in two, add a spot
of gold, and you've got a transistor so small it
will mete out just one electron at a time.