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Induction into Sigma Pi Sigma is a lifetime membership. Each new member pays to the National Office an entrance fee of $54.00 at the time of their reception into Sigma Pi Sigma. This fee includes a one-year membership in the Society of Physics Students (SPS), or a one-year extension of membership for current SPS members.

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Induction Instructions

A quick guide to initiate and complete your induction process

Online Induction Site

We are now using a new, more user-friendly induction platform at to reduce the time necessary to process inductions, and to ensure that members receive induction materials efficiently. Our new system will also address an issue of acquiring proper contact information from potential inductees during the induction process. Please refer to the Induction Procedure (above) to guide you through the process.
New Chapters

Inductees of Sigma Pi Sigma are eligible to petition to establish a chapter at qualified institutions. The petition form and associated documents should be completed and returned to the Director of Sigma Pi Sigma and SPS, Sean Bentley.

Additional information can be found in the Information Handbook.

Additional Resources

Induction Resources (Dropbox folder with Powerpoint and PDF files)

Formal induction procedures and supporting files.

Note: To download the files from Dropbox, click on the desired file, and when it opens, click on the "Download" button at the top of the screen.

Historical Videos (Dropbox folder with mp4 and m4v files)

Marsh White interview, Worth Seagondollar talking about working on the Manhattan Project, and Sigma Pi Sigma Historical Video.

Note: To download the videos from Dropbox, click on the desired video. Once it opens, click on the following icon in the lower right-hand side of the screen:

(more actions);

Then click on "Download".


Historical Videos on YouTube

The First Man-Made Nuclear Explosion

Invited talk by L. Worth Seagondollar at the 2004 Quadrennial Physics Congress, hosted by Sigma Pi Sigma (October 16, 2004, Albuquerque, NM).


Marsh White Interview

Sigma PI Sigma icon, Marsh W. White Interview with Worth Seagondollar and Stan Shepherd


The History of Sigma Pi Sigma

A brief history of Sigma Pi Sigma