Ron Blakey makes
paleogeographic maps of the ancient world.
The paleogeographic maps show the varied landscapes of the ancient Earth through hundreds of millions of years of geologic time, including distribution of ancient shallow seas, deep ocean basins, mountain ranges, coastal plains, and continental interiors. Tectonic features shown include subduction zones, island arcs, mid-ocean ridges and accreting terranes.
posted by zamboni
on Dec 5, 2012 -
14 comments
Preserved in the cave excavations of
Mogao and listing 1,339 stars the
Dunhuang Star Chart is the
oldest graphical star atlas known to exist. Dated to between 649 and 684 AD, it features two sections. The first consists of 26 diagrams of asterisms (including a recognizable Big Dipper and Orion) and the second contains 12 star maps each showing a 30 degree east-west section of sky in cylindrical projection plus an azimuthal projection circumpolar map. Star positions are accurate to within 1.5 degrees and it includes some stars in the southern sky.
[more inside]
posted by Mitheral
on Jun 28, 2009 -
10 comments
Piri Reis Map I am a sucker for those books that hypothesize that Earth was visited by extra-terrestrials in the distant pass. One artifact that is brought up in nearly all of them is
The Piri Reis Map, a document that seems to be a map includes parts of the world (such as Antarctica's ice-covered mountains) that were thought to be very recent discoveries. But, are they a
hoax?
posted by synecdoche
on Apr 21, 2004 -
14 comments
