http://book.klll.cc/ebooks/subject/5214.opds 2025-08-09T05:40:44Z Books about Light (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-09T05:40:44Z https://book.klll.cc/ebooks/subject/5214.opds?sort_order=title Sort Alphabetically by Title 2025-08-09T05:40:44Z https://book.klll.cc/ebooks/subject/5214.opds?sort_order=release_date Sort by Release Date 2025-08-09T05:40:44Z https://book.klll.cc/ebooks/14000.opds Six Lectures on Light John Tyndall 2025-08-09T05:40:44Z https://book.klll.cc/ebooks/57335.opds Light and Colour Theories, and their relation to light and colour standardization Joseph W. Lovibond 2025-08-09T05:40:44Z https://book.klll.cc/ebooks/40119.opds Curiosities of Light and Sight Shelford Bidwell