<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Nov 22, 2013 at 6:38 AM, Eugen Leitl <span dir="ltr"><<a href="mailto:eugen@leitl.org" target="_blank">eugen@leitl.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im"><br></div><div class="im">
> Water is perhaps the most abundant one, but one should not rule out<br>
<br>
</div>Water is not particularly abundant, but it has certainly very<br>
interesting properties, which, if taken together, make it unique.<br></blockquote><div><br></div><div>I tend to agree with Eugen on this one. As far as I'm aware, water is the only liquid that becomes less dense upon freezing. Otherwise, the oceans would fill up with ice from the bottom up. Ices are clearly not as good for life as liquid. </div>
<div><br></div><div>If ammonia or another liquid does the same thing, I'm unaware of that.</div><div><br></div><div>-Kelly</div></div></div></div>