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Science

dickthegrouch

(4,604 posts)

14. How are they always so cylindrical?

Reply to Judi Lynn (Original post)

Sat Apr 25, 2026, 04:34 PM

Saturday

I don't understand how those rock formations can result in such stunningly well-formed cylinders.
No rift or earthquake-like activity could produce such a thing.
I vote space lasers, but I'm weird!

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Highlight:

Giant sinkholes discovered containing untouched ancient forests [View all] Judi Lynn Saturday OP

KNR. As ever, in awe of your amazing finds! Thank you for sharing. niyad Saturday #1

Mother Earth protecting herself Nittersing Saturday #2

Fascinating - thanks, Judi. erronis Saturday #3

And predictably - China's giant sinkholes are a tourist hit - but ancient forests inside are at risk jfz9580m Saturday #4

I am with you. Fly a drone and record for all to see. twodogsbarking Saturday #6

I backpacked the Grand Canyon... GiqueCee Saturday #9

WOW! SheltieLover Saturday #5

Neat stuff! "discovered containing pristine ancient forests." Reminds me of an old Rush song. paleotn Saturday #7

To Be Clear: The Quoted Lines Are Not From The Poem, Though I,...... ColoringFool Saturday #12

Thanks for the clarification. paleotn Saturday #15

This makes me a little sad. The fewer the people that know about these the better. flashman13 Saturday #8

That's just amazing! BeneteauBum Saturday #10

This planet has many wonders! WestMichRad Saturday #11

"Journey To The Center Of The Earth." ColoringFool Saturday #13

How are they always so cylindrical? dickthegrouch Saturday #14

Shangri La,... Below the ground. magicarpet Saturday #16

Thanks again, Judy Lynn! Bayard Sunday #17