REMOVE

1. Physics
2. Astronomy

WHAT

1. Codex (6)
2. Mathematics (1)
3. Spectrum analysis (1)

WHERE

1. England: Greater Manchest … (2)
2. Turkey: Istanbul (1)

WHO

1. Khariki (6)
2. Lovell, Bernard, Sir (3)
3. Aristotle (1)
4. Huggins, William, Sir, 18 … (1)
5. Lockyer, Norman, Sir, 183 … (1)

WHEN

1. 17th Century CE (6)
2. c1650 (6)
3. 20th Century CE (3)
4. 1963 (2)
5. 19th Century CE (2)