The moving rocks in death valley

There are rocks that move mysteriously in the night. These have fascinated me for a very long time. Check out a good introductary video here:



Now the video makes it look simple. However if you check out other places on the web such as this thesis. You can load up sections and the literature review shows photos and examples of studies that question the ice theory. For example they placed rocks inside corrals of iron stakes in the ground. Some of these rocks moved through the stakes leaving the stakes in tacked and the other rocks behind. If it was ice then other rocks should have moved and the stakes damaged by the ice movement. Furthermore rocks that are together and move together then diverage, again showing that ice movement would not do this.

And is not just in death valley as this link shows

Anyway I enjoy questions such as these. I think that dreamers like things that make them wonder. I am not sure if it is nature inquisitiveness - they want to know why in the areas they enjoy (for me science and nature, for others it may be arts) or if it reminds us that even the most knowledgeable can't explain some things. Thus we can rest that people haven't got it figured out like they say :)