Charles Howard Hinton 3 hr 52 min read

What if a fourth dimension were as real as the three we know? A Victorian thinker probes the boundaries of space, mind, and knowledge in a series of pioneering speculative essays.

Charles Howard Hinton's 1886 collection is a foundational work of philosophical and hard SF, famous for popularizing the fourth dimension (and coining the 'tesseract'). Visionary, mind-expanding, historically vital. Read it for the source that inspired generations of SF's dimensional imaginings, from a genuinely original speculative mind.

In its time

Published in 1886, during the 1880s, lost races and dying earths.

Reading it

3 hr 52 min read (a novel-length work, settle in).