4月 20

Four-Dimensional World (12): Material Structure

1月 17

Four-Dimensional World (XI): The Periodic Table

6月 10

Four-Dimensional World (10): Rotational Dynamics

11月 27

Four-Dimensional World (IX): Aircraft Design

1月 9

Four-Dimensional World (VIII): Navigation on a 4D Planet

3月 28

Four-Dimensional World (7): Electromagnetism

3月 11

Four-Dimensional World (Part 6): Newtonian Mechanics

1月 10

Four-Dimensional World (Part 3): Road and Railway Design

8月 16

Four-Dimensional World (Part 2): Road Traffic

8月 12

Four-Dimensional World (Part 1): Planetary Day-Night and Seasonal Cycles