№ 039 · 04·B6

The extended present

1905 · Special relativity

Idea

04 of 10

Layout

Route B · index · seed 205

Theme

paper · paper-grain texture

Drawing

The light cone at 45° with the hyperbolas t² − x² = c² and x² − t² = c² for c = 0.22, 0.44, 0.70 and 1; points on one curve share one spacetime interval.

Figures

• Fig. 4.1Lantern, American, ca. 1770
• Fig. 4.6Lunar Photograph, South Pole, Paul Henry, 1890
• Fig. 4.8Nebuleuse de la Lyre, Paul Henry, ca. 1885
• Fig. 4.9[Solar Eclipse from Caroline Island], H. A. Lawrence, May 6, 1883

Format

1680 × 2376 · 1 : 1.414 · AVIF 8 KB / 25 KB / 191 KB

Use

© 2026 Rantasalo & Co. Oy. CC BY-NC-ND 4.0: share unchanged, with credit, non-commercially. Photographs and textures: public domain (CC0), The Metropolitan Museum of Art Open Access.