<div class="sw-email-modal sw--display-block"> <div id="emailModalContentContainer"> <span class="noty_close sw--position-absolute sw--position-right sw--padding-top-3 sw--padding-right-3 icon-cancel sw--opacity-8"></span> <div class="sw-row"> <div class="sw-email-modal__copy sw--position-relative sw--display-block sw--padding-vert-4"> <p class="last sw--font-size-16">Sign up to get email alerts on discount promotions. There might be one very soon...</p> <form action="/register/email-signup" class="sw-email-modal__signup sw--position-relative" data-confirmation="emailConfirmationModal" data-sw-email-modal-form> <input type="text" class="sw-email-modal__signup-input sw--input-height__medium" placeholder="Email address" name="email" /> <input type="hidden" class="sw-email-modal__signup-input" name="location" value="/product/WA5HL9UF3/grid-stereographic-projection" /> <input type="hidden" class="sw-email-modal__signup-input" name="confirmation" value="emailConfirmationModal" /> <input type="submit" class="btn-primary" value="Sign Up" /> <div id="emailModalFormError" class="text-error" style="display:none"></div> </form> </div> </div> </div>

Grid (stereographic projection)

by Mathematical Art by Henry Segerman

Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed
Grid (stereographic projection) 3d printed

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  • 3D printed just for you.
  • White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
$18.00
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About this Product

Stereographic projection is a map from the sphere to the plane: Imagine straight lines going from the north pole of the sphere down onto the plane. Each line hits the sphere in one point and the plane in one point. Stereographic projection maps that point on the sphere to the point on the plane.

If you put a light source at the north pole of this sculpture, the rays of light effectively do stereographic projection! The curves on the sphere cast shadows, mapping them to a straight line grid on the plane.

I recommend using a Mini Maglite AAA LED flashlight (http://maglite.com/shop/mini-maglite-led-2-cell-aaa-flashlight.html) in "candle mode". Cellphone lights also work pretty well.

      
What's in the Box
INCM

Grid (stereographic projection) in White Strong & Flexible
Width Height Depth
8.15 cm 8.15 cm 7.078 cm
This model is 3D Printed in White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
Model version 3 | Last updated on 11/05/2015

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Choose a Material
OVERVIEW
  • 3D printed just for you.
  • White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
$18.00
Secure Checkout
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