Rob's page of VPython applications for Teaching Physics and Rob's Glowscript files

Rob's GeoGebra files

Rob's selected Desmos files

Visualizing Proper-Time along a worldline

blank RRGP graph paper
blank RRGP graph paper (6x6)

• (2021) Introducing Relativity on Rotated Graph Paper (invited chapter Kersting, M and Blair, D, Teaching Einsteinian Physics in Schools An Essential Guide for Teachers in Training and Practice)

• (2018) Relativity on Rotated Graph Paper - Calculating with Causal Diamonds (Jan 2018)
• (2016) Relativity on Rotated Graph Paper - Am J Phy, 84, 344 (May 2016)
  • (2016 - informal introduction) Relativity on Rotated Graph Paper (physicsforums)
  • (2016 - MAA MathFest 2016) Introducing Spacetime Geometry: Relativity on Rotated Graph Paper (links to slides) [local copy of slides]
  • (2012 draft) Relativity on Rotated Graph Paper - arxiv.org/abs/1111.7254
• (2004) Visualizing proper-time in Special Relativity - arxiv.org/abs/physics/0505134
  Physics Teacher (Indian Physical Society), v46 (4), pp. 132-143 (October-December 2004)
• (2001 - moved here in 2015) Visualizing Proper-Time in Special Relativity [with a Light Clock] - an animated "lightclock diagram" [this version is no longer maintained]
• (1997 - moved here in 2015) Twin Paradox Applet

Visualizing Spacetime Geometry (Spacetime Diagrams)

• (2016) A "Spacetime Trigonometry" approach to Relativity (Gordon Research Conference - Physics Research and Education, June 2016)
• (2015) Spacetime Trigonometry: a Cayley-Klein geometry approach to Special and General Relativity (General Relativity and Gravitation: A Centennial Perspective - Penn State U., June 2015)
• (2014) Comparing Alternate Approaches to Spacetime Diagrams: The Loedel Diagram (with student T. Nelson) (AAPT 2014 Summer Meeting - Minneapolis MN, 2014)
• (2006) AAPT Topical Conference - Teaching General Relativity to Undergraduates (Syracuse, NY - July 20-21, 2006)
  - [Salgado-SpacetimeTrigonometry - Salgado-GRposter.pdf]
  • Teaching General Relativity to Undergraduates (via archive.org)
    - (archive.org) Salgado-GRposter.pdf (local copy: Salgado-GRposter.pdf)
• (1999-present) Spacetime Trigonometry - The Trilogy of the Surveyors
• (1997-present) Spacetime Trigonometry - a unified presentation of Galilean and Special Relativity

Visualizing Tensors and Differential Forms

animated

• (2016) Visualizing the Electromagnetic Field with Differential Forms (AAPT 2016 Summer Meeting - Sacramento, July 2016)
• (2013) Visualizing Differential Forms in Thermodynamics (AAPT 2013 Summer Meeting - Portland OR, 2013)
• (2007) AAPT Topical Conference (Davidson College, 2007), AAPT Summer 2007 meeting (Greensboro, 2007)
  - [Salgado-abstract] - [Salgado-talk.pdf poster]
• (2007)Gordon Research Conference (Visualization in Science and Education, 2007)
  - Visualizing Tensors and their Algebra, with applications for Electromagnetism and Relativity poster
• (2006) Gordon Research Conference (Physics Research and Education: Electromagnetism, 2006)
  - Visualizing Vector and Tensor Fields in Electromagnetism poster
• (2001) Visual Tensor Calculus
• (1996) VRML Gallery of Electromagnetism (via archive.org) VRML Gallery of Electromagnetism (local copy)

Visualizing Spacetime Models and the Causal Structure (Light Cones)

• (2015 update) The Light Cone: an Illuminating Introduction to Relativity (2015) - relativity, visualized and animated on the web
• (1995 original) (2007 version at archive.org)
  The Light Cone: an Illuminating Introduction to Relativity


• (1998-present) Visualizing Causal Sets (Partial Orders)
  • (2008) "Toward a quantum dynamics for causal sets" (unpublished dissertation)
    INSPIRE listing

• Assorted
  • (1996) Fun with Curvature Tensors (referenced by: Heinicke - The Einstein 3-form G and its Equivalent 1-form L in Riemann-Cartan Space)
  • (1997) Some Identities for the Einstein Tensor
  • (2001-present) Rob's page of VPython applications for Teaching Physics (old via archive.org: http://physics.syr.edu/~salgado/software/vpython/)
  • (2005) Notes on Radar Methods and the Bondi k-Calculus

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  • [relativity-related] Notes for Courses Taught:
    • (1993) Modern Physics (Syracuse U., PHY 261)
    • (1995) Science for the 21st Century (Syracuse U., PHY 105) [see The Light Cone above]
    • (2000) Advanced Topics: An Introduction to Spacetime Physics (Truman State U.)
    • (2002) Modern Physics (Dillard U.)
    • (2009) Special Relativity with Spacetime Trigonometry (Mount Holyoke College)
    • (2011) Physics of the Twentieth Century (Bowdoin College)
    • (2015) topics: Special and General Relativity (U. Wisconsin - La Crosse)