Sand by PJ · Published January 21, 2014 · Updated December 23, 2016 Marvelously complex mix of shells and many types of stone worn to this size that allows a complex interaction with the waves – appropriately used for measuring time in a glass.
0 interactive link to night sky December 3, 2013 by PJ · Published December 3, 2013 · Last modified December 23, 2016
