Difference between revisions of "March 10, 2010"

From LPOD
Jump to: navigation, search
(Created page with "__NOTOC__ =Handheld Moon= <!-- ws:start:WikiTextHeadingRule:1:<h1> --> <!-- ws:start:WikiTextLocalImageRule:16:<img src="/file/view/LPOD-Mar10-10.jpg/1263572...")
 
 
(13 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
 
=Handheld Moon=
 
=Handheld Moon=
 
+
<!-- Start of content -->
  <!-- ws:start:WikiTextHeadingRule:1:&lt;h1&gt; -->
+
<!-- ws:start:WikiTextHeadingRule:1:&lt;h1&gt; -->
<!-- ws:start:WikiTextLocalImageRule:16:&lt;img src=&quot;/file/view/LPOD-Mar10-10.jpg/126357257/LPOD-Mar10-10.jpg&quot; alt=&quot;&quot; title=&quot;&quot; style=&quot;height: 700px;&quot; /&gt; -->[[File:LPOD-Mar10-10.jpg|LPOD-Mar10-10.jpg]]<!-- ws:end:WikiTextLocalImageRule:16 --><br />
+
<!-- ws:start:WikiTextLocalImageRule:16:&lt;img src=&quot;/file/view/LPOD-Mar10-10.jpg/126357257/LPOD-Mar10-10.jpg&quot; alt=&quot;&quot; title=&quot;&quot; style=&quot;height: 700px;&quot; /&gt; -->[[File:LPOD-Mar10-10.jpg|LPOD-Mar10-10.jpg]]<!-- ws:end:WikiTextLocalImageRule:16 --><br />
 
<em>north to the left image of Apollo 15 area constructed by [mailto:howard.fink@nyu.edu Howard Fink], New York</em><br />
 
<em>north to the left image of Apollo 15 area constructed by [mailto:howard.fink@nyu.edu Howard Fink], New York</em><br />
 
<br />
 
<br />
The problem with the Moon is that the illumination always comes from a limited range of azimuths, so the shadows best emphasize features that are perpendicular to those directions. But with a three dimensional model of a lunar scene you can rotate it to have illumination from any direction. Here, the Sun is to the south, casting a shadow from the [http://the-moon.wikispaces.com/Mons+Hadley+Delta Hadley Delta] peak over the big bend in the Hadley Rille. Such rotations can be [http://lpod.wikispaces.com/December+10%2C+2009 performed] within a computer using digital terrain models (DTM), and Howard has [mailto:tychocrater@yahoo.com Chuck Wood]</em><br />
+
The problem with the Moon is that the illumination always comes from a limited range of azimuths, so the shadows best emphasize features that are perpendicular to those directions. But with a three dimensional model of a lunar scene you can rotate it to have illumination from any direction. Here, the Sun is to the south, casting a shadow from the [https://the-moon.us/wiki/Mons_Hadley_Delta Hadley Delta] peak over the big bend in the Hadley Rille. Such rotations can be [[December 10, 2009|performed]] within a computer using digital terrain models (DTM), and Howard has [http://finkh.wordpress.com/ demonstrated] how those same lines of zeros and ones can be transformed into a physical depiction of the lunar surface. He used a USGS digitized [http://webgis.wr.usgs.gov/pigwad/down/moon_dl.htm version] of the old topographic map of the Apollo 15 area, which he read into <em>Mathematica</em>, converted into a 3D model with <em>Maya</em>, and printed with a rapid-prototyper or 3-D printer. Howard was very kind and gave me one of these 5&quot; x 7&quot; models which he mounted in a cherry frame. With the new Kaguya and LRO DTMs it will be possible for many people to make their own models of any part of the Moon, using a 3-D printer at a local university or service center. I am especially pleased to see this because in my [[Science for Everyone|review]] of technology and education I suggested that 3-D printers would soon be able to bring models of planetary landforms into our hands. I am so happy to have one!<br />
 +
<br />
 +
<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br />
 
<br />
 
<br />
 
<strong>Related Links</strong><br />
 
<strong>Related Links</strong><br />
Rükl plate [http://the-moon.wikispaces.com/R%C3%BCkl+22 22]<br />
+
Rükl plate [https://the-moon.us/wiki/R%C3%BCkl_22 22]<br />
 
<br />
 
<br />
 
<hr />
 
<hr />
 
+
<table class="wiki_table">
 
+
<tr>
 
+
<td> <!-- RemoveRevolverMaps -->
----
+
<!-- RemoveRevolverMaps -->
===COMMENTS?===
+
</td>
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
+
<p><b>Yesterday's LPOD:</b> [[March 9, 2010|Alpine Moonrise]] </p>
 +
<p><b>Tomorrow's LPOD:</b> [[March 11, 2010|Peaks &amp; Walls]] </p>
 +
<!-- End of content -->
 +
{{wiki/ArticleFooter}}

Latest revision as of 10:17, 28 October 2018

Handheld Moon

LPOD-Mar10-10.jpg
north to the left image of Apollo 15 area constructed by Howard Fink, New York

The problem with the Moon is that the illumination always comes from a limited range of azimuths, so the shadows best emphasize features that are perpendicular to those directions. But with a three dimensional model of a lunar scene you can rotate it to have illumination from any direction. Here, the Sun is to the south, casting a shadow from the Hadley Delta peak over the big bend in the Hadley Rille. Such rotations can be performed within a computer using digital terrain models (DTM), and Howard has demonstrated how those same lines of zeros and ones can be transformed into a physical depiction of the lunar surface. He used a USGS digitized version of the old topographic map of the Apollo 15 area, which he read into Mathematica, converted into a 3D model with Maya, and printed with a rapid-prototyper or 3-D printer. Howard was very kind and gave me one of these 5" x 7" models which he mounted in a cherry frame. With the new Kaguya and LRO DTMs it will be possible for many people to make their own models of any part of the Moon, using a 3-D printer at a local university or service center. I am especially pleased to see this because in my review of technology and education I suggested that 3-D printers would soon be able to bring models of planetary landforms into our hands. I am so happy to have one!

Chuck Wood

Related Links
Rükl plate 22


Yesterday's LPOD: Alpine Moonrise

Tomorrow's LPOD: Peaks & Walls


COMMENTS?

Register, Log in, and join in the comments.