More like PITCH BLACK!:14:double80s:It's so dark without lights I find it more comfortable shutting my eyes instead of keeping them open. I think your brain relaxes when you shut your eyes.
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More like PITCH BLACK!:14:double80s:It's so dark without lights I find it more comfortable shutting my eyes instead of keeping them open. I think your brain relaxes when you shut your eyes.
TSandM:My husband and I watched the movie, The Cave, last night. It was a pretty awful movie, but a few of the scenes of divers in caves just got to me . . . I told my husband, "I think it would be really cool to dive in a cave." (I like caves anyway, always have.)
My husband said, "Don't be stupid. You don't get to see anything like that. All you get to see is the four inch area that your focused HID light-head illuminates. The rest is just dark!"
Is he right? Or do the lights spill enough so you actually get a sense of the spaces you're in, and get to enjoy the structures? I mean, the photographs are awesome, but those guys are using strobes.
Apologies for asking something so basic . . .
Meng_Tze:More like PITCH BLACK!:14:
Actually all caves form underwater. The Mexican caves were formed before the last ice age and looked just like the Florida caves of today. During the ice age the water level dropped and the Mexican caves became "dry" caves and became decorated. After the ice age when the sea levels rose, they became underwater again.TSandM:The Florida and European caves seem to have formed underwater, and lack the elaborate structures of the cenotes.
TSandM:Thanks, Roakey. I suspected as much. It was at least clear that, at some point in time, the Mexican caves were dry, in order to form the stalactites and stalagmites. They are utterly beautiful, and that's definitely where I would want to go.