Comments on: Ripley’s Believe It or Not! https://gregladen.com/blog/2010/09/30/ripleys-believe-it-or-not/ Fri, 01 Oct 2010 04:13:00 +0000 hourly 1 https://wordpress.org/?v=6.4.6 By: Greg Laden https://gregladen.com/blog/2010/09/30/ripleys-believe-it-or-not/#comment-523923 Fri, 01 Oct 2010 04:13:00 +0000 http://scienceblogs.com/gregladen/2010/09/30/ripleys-believe-it-or-not/#comment-523923 Sailor, I’m not convinced either, but there is a huge scale difference between the case cited above and your example.

]]> By: sailor https://gregladen.com/blog/2010/09/30/ripleys-believe-it-or-not/#comment-523922 Fri, 01 Oct 2010 02:31:54 +0000 http://scienceblogs.com/gregladen/2010/09/30/ripleys-believe-it-or-not/#comment-523922 Greg
I am not completely convinced that is a real-time video rather than a series of still shots or some such. The reason is that the volcanic clouds I have seen are very energetic affairs, not just going up but swirling and whirling within themselves.

The beginning of this gives a good idea:
http://www.youtube.com/watch?v=VaChWgbn18Y

Your posted video is strangely static within the cloud.

]]> By: Greg Laden https://gregladen.com/blog/2010/09/30/ripleys-believe-it-or-not/#comment-523921 Thu, 30 Sep 2010 17:27:52 +0000 http://scienceblogs.com/gregladen/2010/09/30/ripleys-believe-it-or-not/#comment-523921 http://www.youtube.com/watch?v=CnWOG8Eoq-8

]]> By: Greg Laden https://gregladen.com/blog/2010/09/30/ripleys-believe-it-or-not/#comment-523920 Thu, 30 Sep 2010 17:23:46 +0000 http://scienceblogs.com/gregladen/2010/09/30/ripleys-believe-it-or-not/#comment-523920 I was wondering about the speed at which this happened. Looking for video now…

]]> By: ekinodum https://gregladen.com/blog/2010/09/30/ripleys-believe-it-or-not/#comment-523919 Thu, 30 Sep 2010 16:50:34 +0000 http://scienceblogs.com/gregladen/2010/09/30/ripleys-believe-it-or-not/#comment-523919 There is a short video of this, as well (oh, yes, NASA also has expensive digital video capabilities)- I think I saw it posted on Astronomy Photo of the Day. You can see the quite rapid expansion of the plume in the video, and as a result the suggestion that the hole is caused by anything other than the volcano seems quite ludicrous in my otherwise baseless opinion. My vote is for the shockwave hypothesis.

]]>