Trajectories, by hand
$28.00
Market
Listed products from every seller. Component filters compose with Rails scopes; price queries include products whose price is the virtual default of zero.
Computing Machinery and Intelligence
$15.00
On Computable Numbers (annotated)
$32.00
Debugging kit (moth included)
$14.00
"It's easier to ask forgiveness" tee
$22.00
COBOL compiler, boxed
$89.00
Nanosecond (11.8 inches of wire)
$4.00
Punched card pack (500)
$9.00
Brass gear set, 40 teeth
$18.50
Difference Engine No. 2 (kit)
$249.00