Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
Six Simple Machines: Lever, Wheel, Pulley, Inclined Plane, Wedge, and Screw
(
wikipedia.org
)
4 points
by
gurjeet
2 days ago
|
hide
|
past
|
favorite
|
discuss
help
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
