Anonymous 09/02/17 (Sat) 19:55:55 No. 447
Sorry if this doesn't belong here but this is the closest thing to a /sci/ board we have.
Lotus ## Admin 09/02/17 (Sat) 20:07:47 No. 449 >>447
Do people want the /cyb/ board renamed to "/scig/ - Science and Technology, and their effects upon society and the human imagination"?
So I'm contributing to the thread, check out the Crystal Cave in Naica, Mexico
>Nothing compares with the giants found in Cueva de los Cristales, or Cave of Crystals. The limestone cavern and its glittering beams were discovered in 2000 by a pair of brothers drilling nearly a thousand feet below ground in the Naica mine, one of Mexico's most productive, yielding tons of lead and silver each year. The brothers were astonished by their find, but it was not without precedent. The geologic processes that create lead and silver also provide raw materials for crystals, and at Naica, miners had hammered into chambers of impressive, though much smaller, crystals before http://ngm.nationalgeographic.com/2008/11/crystal-giants/shea-text
Anonymous 09/02/17 (Sat) 20:09:31 No. 450 >>446
Nah. It's not like it's taking up any space.
Just keep dumping. Feel free to give us something to read too.
Anonymous 09/02/17 (Sat) 20:11:22 No. 451 >>449 >Naica cave
God damn I wanted to post about that one just now
/cyb/ is fine
Anonymous 09/02/17 (Sat) 20:24:03 No. 452 >>449
I would like the name to be changed because I think it would encourage more discussions. We should put it to a vote.
Pic is Alexandrite
The alexandrite variety displays a color change (alexandrite effect) dependent upon the nature of ambient lighting. Alexandrite effect is the phenomenon of an observed color change from greenish to reddish with a change in source illumination. Alexandrite results from small scale replacement of aluminium by chromium ions in the crystal structure, which causes intense absorption of light over a narrow range of wavelengths in the yellow region (580 nm) of the visible light spectrum. Because human vision is most sensitive to green light and least sensitive to red light, alexandrite appears greenish in daylight where the full spectrum of visible light is present, and reddish in incandescent light which emits less green and blue spectrum. This color change is independent of any change of hue with viewing direction through the crystal that would arise from pleochroism.
Anonymous 09/02/17 (Sat) 21:55:20 No. 456
I have a magnetite, an osbydian, an amethyst covered by volcanic rock and some tiny rocks like quartz and interesting ones, but my collection is really small compared to my mother's, she has a lot of rocks, one day I will have a collection as big as hers.
Do you also like rocks anon?
Anonymous 09/02/17 (Sat) 22:08:23 No. 458
Do you also like rocks anon?
I have some, but rather than specific materials, I search for weird shapes.
I remember touching an Iron meteorite while visiting a travelling space expo, though.
Just thinking "this thing comes from outside" sent chills down my spine.
Anonymous 09/02/17 (Sat) 23:51:23 No. 459
I have a pretty large rock collection. I used to go fossil hunting when I was younger. I recently got a facetting machine so I can teach myself how to cut some of my stones.
Anonymous 09/03/17 (Sun) 21:35:06 No. 470
It's so cool how crystals form in the shell cavities of invertebrates.
Anonymous 09/03/17 (Sun) 21:39:00 No. 471
Golly, what caused the crystals to form in there?
Anonymous 09/03/17 (Sun) 21:40:24 No. 472
When you say it like that, that sounds horrifying
Anonymous 09/03/17 (Sun) 21:47:27 No. 473
Well some of those seem to have tiny edges, I wonder if this creature got it's organs hurt by them.
Anonymous 09/03/17 (Sun) 21:49:46 No. 474
They were deaf long before the crystals started forming
Minerals were slowly deposited in the cavities over time and they slowly crystallized over a very long time.
Anonymous 09/03/17 (Sun) 21:50:42 No. 475
Probably the fact that the shell is hollow and filled with a different material. I actually have a couple clams filled with them that I picked up in Peru.
The thing was long dead, flesh long gone, by the time those crystals started to form.
Anonymous 09/03/17 (Sun) 22:19:19 No. 478
This thread is making me want to go look for fossils again.
Anonymous 09/13/17 (Wed) 19:35:04 No. 601
https://en.wikipedia.org/wiki/Tsunami_bomb >The tsunami bomb was an attempt during World War II to develop a tectonic weapon that could create destructive tsunamis. The project commenced after US Navy officer E.A. Gibson noticed small waves generated by explosions used to clear coral reefs. The idea was developed by the United States and New Zealand military in a programme code named Project Seal. The weapons concept was deemed feasible, but the weapons themselves were never fully developed or used. A related concept, the bouncing bomb was developed and used in World War II, to be dropped into water as a means to destroy German dams and cause loss of industrial capacity and widespread flooding.
That was attempted during WW2. I wonder what could be done with modern technology.
Anonymous 09/14/17 (Thu) 05:17:26 No. 610
Move to Texas. We have all kinds of fossils here from marine life, to petrified wood, to wooly mammoths, to dinosaurs. Also lots of opportunities for geologists.
Anonymous 09/17/17 (Sun) 04:38:39 No. 622
does fracking get maud aroused?
Anonymous 09/17/17 (Sun) 06:04:58 No. 623
Plausibly… or the opposite.
Would you be able to tell, if she did?
Anonymous 07/15/19 (Mon) 15:33:25 No. 965
The third highest mountain in north america is only 17 miles away from sea level, in the Tann Fiord near Icy Bay Alaska.
In October 2015, there was a landslide on the mountain that generated a tsunami wave over 500 ft high that swept over Icy Bay.
>The wave that followed ripped spruce from 1,700 feet up a mountain slope and left trimlines in the bay that are visible today. >Last October, seismologists at Columbia University in New York detected the Icy Bay landslide on their instruments. Göran Ekström and Colin Stark specialize in picking up landslide signals. They figured the slide spilled 200 million tons of rock in 60 seconds. >Scientists estimate the Icy Bay slide might be the biggest non-volcanic landslide, by volume, in North America’s written history. https://www.gi.alaska.edu/alaska-science-forum/giant-wave-icy-bay