6.4 Nonlinear differential equations How to Balance a Yardstick on an Apple, Herbert R. Bailey, 17:3, 1986, 220-225, 9.10 Bat and Superbat, Herbert R. Bailey, 18:4, 1987, 307-314, 5.2.9 A Rich Differential Equation for Computer Demonstrations, Bernard W. Banks, 21:1, 1990, 45-50, 6.5, 9.6 Newton's Orbit Problem: A Historian's Response, Curtis Wilson, 25:3, 1994, 193-200, 0.5, 2.2 Newton's Principia and Inverse-Square Orbits, N. Nauenberg, 25:3, 1994, 212-221, 0.5, 2.2, 6.5 New Directions in Elementary Differential Equations, William E. Boyce, 25:5, 1994, 364-371, 1.2, 6.2 What It Means to Understand A Differential Equation, John H. Hubbard, 25:5, 1994, 372-384, 1.2, 6.1, 6.2 Teaching Differential Equations with a Dynamical Systems Viewpoint, Paul Blanchard, 25:5, 1994, 385-393, 1.2, 6.1, 6.2 Computers, Lies, and the Fishing Season, Robert L. Borrelli and Courtney S. Coleman, 25:5, 1994, 401-412, 6.2, 6.5 Quenching a Thirst with Differential Equations, Martin Ehrismann, 25:5, 1994, 413-418, 9.10 A Progression of Projectiles: Examples from Sports, Roland Minton, 25:5, 1994, 436-442, C, 6.2, 9.10 A Balloon Experiment in the Classroom, Thomas Gruszka, 25:5, 1994, 442-444, C, 6.1, 9.10 The Lighter Side of Differential Equations, J. M. McDill and Bjorn Felsager, 25:5, 1994, 448-452, C, 6.2 Experiments with Probes in the Differential Equations Classroom, David O. Lomen, 25:5, 1994, 453-457, 6.2, 9.10 Gudermann and the Simple Pendulum, John S. Robertson, 28:4, 1997, 271-276, 5.3.1 Characterizing Power Functions by Volumes of Revolution, Bettina Richmond and Tom Richmond, 29:1, 1998, 40-41, C, 5.2.7 Finding Unpredictable Behavior in a Simple Ordinary Differential Equation, Lisa Humphreys and Ray Shammas, 31:5, 2000, 338-346 Using Differential Equations to Describe Conic Sections, Ranjith Munasinghe, 33:2, 2002, 145-148, C, 0.5 Tugging a Barge with Hyperbolic Functions, William B. Gearhart and Harris S. Shultz, 34:1, 2003, 42-49, 5.3.3, 5.3.4 Using a Gradient Vector to Find Multiple Periodic Oscillations in Suspension Bridge Models, L. D. Humphreys and P. J. McKenna, 36:1, 2005, 16-26, 6.5 Synchronizing Fireflies, Ying Zhou, Walter Gall, and Karen Mayumi Nabb, 37:3, 2006, 187-193, 9.10 Some Half-Row Sums from PascalŐs Triangle via Laplace Transforms, Thomas P. Dence, 38:3, 2007, 205-209, 3.2 Pursuit Curves for the Man in the Moone, Andrew J. Simoson, 38:5, 2007, 330-338, 2.2, 9.10 (see also A Smoother Flight to the Moon, Stan Wagon, 39:1, 2008, 48)