Willem Janszoon Blaeu

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Willem Janszoon Blaeu

Dutch geographer and astronomer

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astronomical map
New constellations: 16th–20th century
…1603 on the globe of Willem Blaeu and on a single plate in the Uranometria of Johann Bayer. The Uranometria, the first serious star atlas, has a plate for each of the 48 traditional figures. Its scientific integrity rests on Tycho Brahe’s newly determined stellar positions and magnitudes (see below…
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…1603 on the globe of Willem Blaeu and on a single plate in the Uranometria of Johann Bayer. The Uranometria, the first serious star atlas, has a plate for each of the 48 traditional figures. Its scientific integrity rests on Tycho Brahe’s newly determined stellar positions and magnitudes (see below…
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printing
Improvements after Gutenberg
About 1620 Willem Janszoon Blaeu in Amsterdam added a counterweight to the pressure bar in order to make the platen rise automatically; this was the so-called Dutch press, a copy of which was to be the first press introduced into North America, by Stephen Daye at Cambridge,…
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About 1620 Willem Janszoon Blaeu in Amsterdam added a counterweight to the pressure bar in order to make the platen rise automatically; this was the so-called Dutch press, a copy of which was to be the first press introduced into North America, by Stephen Daye at Cambridge,…
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Musca
…Musca by the Dutch cartographer Willem Janszoon Blaeu in 1603.
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…Musca by the Dutch cartographer Willem Janszoon Blaeu in 1603.
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