Here we see how a ball of dust could evolve and be maintained in a window frame in an average home. Dongshi, Taichung, Taiwan.
<a rel="nofollow" class="external text" href="https://vimeo.com/jidanni">積丹尼 Dan Jacobson</a> (<a href="//commons.wikimedia.org/wiki/User:Jidanni" title="User:Jidanni">Jidanni</a>)
2020-08-25
<a href="//commons.wikimedia.org/wiki/Category:Vimeo" title="Category:Vimeo">Vimeo</a>: <a rel="nofollow" class="external text" href="https://vimeo.com/451404015">塵球 Ball of dust</a> (<a rel="nofollow" class="external text" href="//web.archive.org/web/*/https://vimeo.com/451404015"><span style="color:#9602fc">view archived source</span></a>)