27 Dec '13 11:18>4 edits
this research explains the mystery of why new snowflakes still continually form in snow clouds long after particles that act as nucleus to seed new snowflakes, specks of dust, should have been all purged out of the atmosphere, by assuming the existence of mysterious hidden atmospheric particles that have yet to be discovered that less efficiently act as snowflake nuclei and that persist for much longer in the snow clouds as a result:
http://phys.org/news/2013-12-frozen-north.html
But I cannot help wonder if they have completely overlooked a much simpler credible alternative hypothesis;
with sufficient relative humidity, the snowflakes can be seeded without any nuclei at all i.e. seeded even in air that is infinitely pure and free of contaminants.
Why not? This hypothesis should be testable in a lab to prove or disprove it so I don't see why it wouldn't be scientific.
http://phys.org/news/2013-12-frozen-north.html
But I cannot help wonder if they have completely overlooked a much simpler credible alternative hypothesis;
with sufficient relative humidity, the snowflakes can be seeded without any nuclei at all i.e. seeded even in air that is infinitely pure and free of contaminants.
Why not? This hypothesis should be testable in a lab to prove or disprove it so I don't see why it wouldn't be scientific.