diff --git a/12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/ampere_theorem_demonstration_variation_solid_angle_displacement_1_L1200.gif b/12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/ampere_theorem_demonstration_variation_solid_angle_displacement_1_L1200.gif
new file mode 100644
index 000000000..a7fdc4cc9
Binary files /dev/null and b/12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/ampere_theorem_demonstration_variation_solid_angle_displacement_1_L1200.gif differ