/usr/share/step/objinfo/Particle.html is in step 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Particle</title>
</head>
<body>
<p>A zero-sized particle which has a unique name and four parameters:</p>
<ul>
<li><b>position:</b> The X/Y position of the particle, relative to the center of the <a href="objinfo:World">world</a>.</li>
<li><b>velocity:</b> the velocity of the particle. Unit: meters/second.</li>
<li><b>force:</b> the force with which the particle is moving around.</li>
<li><b>mass:</b> the mass of the particle. This influences forces with which the particle interacts with other items.</li>
</ul>
</body>
</html>
|