And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Saturday, May 21, 2022
Hear the Otherworldly Sounds of Skating on Thin Ice
I heard such sounds one early winter evening at the Great Meadows NWR (Concord unit). The pools (originally fields, deliberately flooded by the Concord River to create wildfowl habitat) finally froze over. A crack formed in the new ice, probably to relieve stress, and propagated across the pool, the pitch lowering due to Dopplering as it traveled away from me. It was very cool, but I've never encountered that again despite spending plenty of time out in winter photographing birds (and mostly failing at that).
OK, so many years ago we used to take our cars out on Lake George, NY at very late in the evening. Sounded exactly the same except much louder. Really crazy but we were stupid kids. When the ice stress factured it was amazingly loud.
I heard such sounds one early winter evening at the Great Meadows NWR (Concord unit). The pools (originally fields, deliberately flooded by the Concord River to create wildfowl habitat) finally froze over. A crack formed in the new ice, probably to relieve stress, and propagated across the pool, the pitch lowering due to Dopplering as it traveled away from me. It was very cool, but I've never encountered that again despite spending plenty of time out in winter photographing birds (and mostly failing at that).
ReplyDeleteI learned a rhyme from an old Boy Scout manual. One inch KEEP OFF, Two inches one may, Three inches small groups, Four inches OK!
ReplyDeleteThat stick is going to come in handy if he falls through the ice.
ReplyDeleteOK, so many years ago we used to take our cars out on Lake George, NY at very late in the evening. Sounded exactly the same except much louder. Really crazy but we were stupid kids. When the ice stress factured it was amazingly loud.
ReplyDelete