Nautical mile 1 sea mile", followed by "For most practical purposes distance is measured from the latitude scale, assuming that one minute of latitude equals one nautical mile". One tenth of a nautical mile is a cable length. The derived unit of speed is the knot, defined as one nautical mile per hour. The metre was originally defined as of the meridian arc from the North pole to the equator passing through Dunkirk. The Earth’s circumference is therefore approximately 40,000 km. The equatorial circumference is slightly longer than the polar circumference – the measurement based on this (40,075.017 km x x =
Lectionary 240 Lectionary 240 Lectionary 240, designated by siglum ℓ "240" (in the Gregory-Aland numbering) is a Greek manuscript of the New Testament, on parchment. Palaeographically it has been assigned to the 12th century. Scrivener labelled it by 231. The manuscript has complex contents. The codex contains 237 daily lessons for reading from Easter to Pentecost from the Gospels of John, Matthew, Luke lectionary ("Evangelistarium"). The manuscript is well preserved. The text is written in Greek minuscule letters, on 251 parchment leaves (), in two columns per page, 22-25 lines per page. The headpieces are decorated with gold; the punctuation and accents