LumberJocks

Hyperbolic Paraboloid (from toothpicks)

  • Advertise with us
Project by Renaissance_Man posted 02-15-2017 01:02 PM 448 views 0 times favorited 3 comments Add to Favorites Watch
Hyperbolic Paraboloid (from toothpicks)
Hyperbolic Paraboloid (from toothpicks) No picture No picture No picture No picture No picture
Zoom Pictures

These have always fascinated me. The hyperbolic paraboloid is a surface curved in two directions, but composed entirely of straight lines. The finished surface is very strong and has sometimes been used for roofs. I made this one of toothpicks and hot glue as a sort of proof of concept, and it is quite strong. If you press it flat and let go, it springs back into shape quite vigorously.





3 comments so far

View RichTaylor's profile (online now)

RichTaylor

996 posts in 257 days


#1 posted 02-15-2017 02:30 PM

I remember that from calculus many decades ago. It’s also called a monkey’s saddle. The maxima for the curve along one axis is at the same point as the minima for the other.

-- No matter how much you push the envelope, it'll still be stationery.

View CaptainSkully's profile

CaptainSkully

1468 posts in 3226 days


#2 posted 02-15-2017 05:39 PM

Now I’m hungry for some Pringles…

-- You can't control the wind, but you can trim your sails

View Iamjacob's profile

Iamjacob

48 posts in 2294 days


#3 posted 02-15-2017 11:28 PM

Hey, I have sheets of plywood that do the same thing. :(

That’s very neat though.

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com