June issue of Sky and Telescope

[hewhocaves]

has an excellent article by our BA! Furthermore, I didn't know it was by him until I'd reached the end. About halfway through I was curious about the author, but far too gripped by the text to skip ahead.

The article is part of a larger story about cosmic disasters that might affect the earth. Fun read!

John

PS: I searched for an existing thread but came up empty. Now someone needs to ToSeek me in the next half hour. lol

[antoniseb]

I haven't received the issue yet. You must have a mailman who isn't interested in astronomy.

[hewhocaves]

I haven't received the issue yet. You must have a mailman who isn't interested in astronomy.

lol... it was most hilarious. i received my astronomy magazine and my spelunking magazine in the same delivery. talk about switching gears!

[Maksutov]

lol... it was most hilarious. i received my astronomy magazine and my spelunking magazine in the same delivery. talk about switching gears!Back in the 1950s to 1970s, there wasn't as much of that particular gear shifting required. (http://www.frobenius.com/cave.htm)

[hewhocaves]

Back in the 1950s to 1970s, there wasn't as much of that particular gear shifting required. (http://www.frobenius.com/cave.htm)

thats really neat... i may have to borrow that url.

there have been some other crossovers - with tunnels more than caves. Those of you who read 'The Hobbit' may recall how the secret door in the Lonely Mountian was opened. And several structures in our past have long tunnels which, on certian nights or days look out on a particular celestial event.

there's a few caves in WV which illustrate this naturally. Bone-Norman is one. It has a two foot high entrance that opens to a downward-sloping room. The room is roughly three to four hundred feet long and a good fourty feet wide and high at the back. Because the entrance (and the passage) faces west-southwest, there are certain times of certain days when the sun shines directly into the cave for brief periods. When it happens, it's like "wow". serious, serious illumination and you see this massive hole like you've never seen before.

[Dave Mitsky]

Back in the 1950s to 1970s, there wasn't as much of that particular gear shifting required. (http://www.frobenius.com/cave.htm)

The Astronomical Society of Harrisburg owns a 10" f/7 Cave Astrola.

http://www.astrohbg.org/gallery2/Tour-of-Naylor/10_inch_cave

Dave Mitsky