Earth Science
Geology, geophysics, oceanography, and so on.
Subforums
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The sticky question of climate change, and other climate science related issues.
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630 topics in this forum
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We see a lot of earthquakes happening now, so have they been increasing?
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- 2 replies
- 1.5k views
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Put it in lead lined capsules to make a fuel less heat source that will go on for decades.
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- 13 replies
- 2.2k views
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If the phytoplankton on the Pacifics' Surface All dies off, would this cause negative consequences for Man-Kind because of less Oxygen production into Earths' Atmosphere?
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Reputation Points
- 22 replies
- 4.5k views
- 4 followers
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Hi everyone Well first of all I must point out that I am not a scientist in any way, but I do have a couple of science-related things I would like to ask purely for a novel I am writing... I hope you will bear with me and I very much appreciate any responses! At the moment it seems clear that due to global warming the Earth's ice caps are melting and this will eventually cause coastlines to be eroded. Some cities may even disappear underwater. But what I want to ask is: Is there any scientifically plausible scenario (however far-fetched this may be) which would cause all of the Earth to be completely flooded or in imminent danger of being so? One thing that did occ…
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- 45 replies
- 9.9k views
- 4 followers
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I've been collecting these without knowing what they are, and I think it's time to find out. They are inside rocks, and very common. The red ones break easily. Pictures in attached files.
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- 4 replies
- 2.2k views
- 1 follower
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In my web site have earthquake forecasrs for July 2016. Visit my exhibition with predicted earthquakes, my discovery about shaking Earth. This is reason the Russian airkraft is not guilty.? Have more web sites and sciences forums. Web: link removed by moderator Thank you.
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- 2 replies
- 1.8k views
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Are there studies that show that earths gravity and consequently earths mass has changed significantly? I wonder if this could link to the death of the giant dinosaurs.
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- 5 replies
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- 1 follower
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So I am creating a fantasy world for a book that I am trying to write. However, my world is a planet and I need it to work in real world science. I love science, particularly physics and planet science but my brain is about the size of a walnut, so though I enjoy it, I struggle to understand it a lot of times. I have a few questions and I was hoping someone could give me a simple answer to them. Questions about the Poles. I know that the poles are to do with the axis of Earth and the magnetic poles but my questions are. Does a life supporting planet need poles and why? Do the poles have to be cold? Do they both have to be cold? Questions about the plan…
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- 1 reply
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I just have a few questions about static build up, please forgive my potential ignorance on some aspects, i only know so much, hence why i'm asking the questions... ~ can our lower atmosphere contain a continuous static buildup if it was concentrated in a confined space? ~ what would be the best material(s) (and if applicable, in what form, i.e bristles, flat, balls, etc.) to be purchasable on the open market to rub together consistently to create a static build up in the highest quantity in the shortest time? ~ when you do the experiment of rubbing a balloon on your head and touch metal, is there a maximum static build up, or could it potentially keep buildin…
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- 1.1k views
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The tallest peak on Earth is Mt.Everest at approx. 29000 feet. Can we have a peak that extends to the exosphere ? Would gravity allow it ?
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- 15 replies
- 3.2k views
- 2 followers
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Hello i am new to this forum. This will be my first post. Science is my favorite.I hope to learn a bunch here. That was my short intro. So I duno why i started researching it, but i ended up with a ton of tabs open on my internet browser and figured just as usual i end up with more questions then answers. So instead of delving deeper or going ahead i want to ask a question and see where it takes me. Its great thing to get different perspectives on a subject. I wanted to know why our oceans were so salty after reading the south pole ice caps are 70% of earths fresh water. I found out salt comes from rocks and its stripped off by the rain, because the rain is sli…
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- 15 replies
- 2.3k views
- 1 follower
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Resided in San Francisco, California for many years and at a certain point, I was in the rare position to choose were in the whole U.S. to move for retirement. Fleeing from the 24-7 overcrowded crawling five lane freeways, banks, supermarket lines, forest of parking meters and other factors from 'Ripoffornia' state; decided to pick a location that was a surprise to many by method of decision; aiming to - No or least earthquakes, - No or least tornadoes, - No or least hurricanes, - No or least floods, - No or least forest fires, - No or least weather extremes. - No isolation from 'civilization' - No immersion in a big city. - Reasonable cost of living. - No or least gang…
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- 18 replies
- 2.9k views
- 1 follower
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Greetings! I have these cool looking volcanic minerals that contained quartz (SiO2). And I was wondering... Is It possible to ''dissolve'' SiO2 with a type of acid or something similar?
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- 5 replies
- 11.1k views
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My mother told me not to wear anything with red, going near to animals, or go out of the house during thunderstorms. Is there any scientific explanation or relevance of wearing red to thunderstorms and lightning? Your response is highly appreciated. Thank you
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- 14 replies
- 2.9k views
- 2 followers
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My story's world, Axis Earth (just called earth by the inhabitants), has been built from scratch from tectonic plates up. I'm sure I made some mistakes because I can only do so much math, but I at least tried to make my topography follow the plate boundaries. AE's genesis paralleled our own- exact same size, distance from the sun, axial tilt, etc- until the crust began cooling, breaking up, and moving. Most of the differences between our earth and this alternate one are thus only surface deep. I imagine that's still quite a bit of a difference. So these particular questions are concerning the placement of such things as deserts, swamps, faults, mountains, forests, etc. I'…
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Press release: http://www.cam.ac.uk/research/news/first-global-map-of-flow-within-the-earths-mantle-finds-the-surface-is-moving-up-and-down-like-a-yo Or go straight to the paper: http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2709.html My own perspective: We already knew that the Earth's surface moves up and down, and that one way this can happen is because the mantle pushes the land up from underneath. In this paper a new dataset of observations is presented measuring this type of topography ("dynamic topography"). What's interesting is that the "shape" of the bulges is different from what has been previously been predicted. They are nar…
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- 3 replies
- 2.1k views
- 1 follower
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On a climate change blog I recently had a brief exchange in relation to melting sea ice. I argued that melting sea ice must add to sea level rise. Others maintained that floating sea ice cannot add to sea level when it melts because it displaces the same weight of water as it weighs itself. I wonder if people who know more about the physics of buoyancy etc can explain which view is correct? I have done some research and come across arguments in both directions but many seem to view buoyancy in a way fundamentally different from how I look at it. One caveat - I know nothing about sea ice, but I assume that it floats, and that some portion is proud of the sea surface. I don…
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- 6 replies
- 2.6k views
- 1 follower
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I remember reading somewhere that the poles could shift? Is this something that is likely or just lies spun by the rumour mill?
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- 1 reply
- 1.4k views
- 1 follower
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If we build cone or a pyramid with thick transperant sides from graphene for instance. And the cone has h = 10 km. And r = 50 km .and we put the cone over some big region . Does the earth atmosphere with its net momentum over sides of the cone give a push down our hipothetical cone or pyramid ?
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- 6 replies
- 2.3k views
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Hello all, I'm trying to do some more in depth research in order to choose between some schools. My main questions are, What is the difference between Earth Systems Science and Environmental Science, if any? And, What is the difference between Earth Systems Science and Earth Science? If any of you are able to answers these or have any input I would greatly appreciate it! Thank you!
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- 1.2k views
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While cleaning out the attic I came across a box with things collected from childhood and discovered this intriguing object. It is non-magnetic, approximately 37g and appears to be of a hard dark stone material. The shape and easy fit for my "right" thumb (per photo) caught my eye again as it apparently had as a youngster. I emphasized "right" thumb because when passed to the left hand it is not as comfortable of a fit which I am assuming may indicate that it is a primitive tool. I have no recollection of where I found it, but can guess that it was most likely in the Adirondacks of New York state or in central coastal New Jersey. Thanks for all of your anticipated re…
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- 9 replies
- 2.5k views
- 1 follower
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Has anybody used a handheld LIBS Analyzers form SciAps? i have used handheld XRF extensively, but thinking about upgrading my instrument. I was wondering what other people think about the LIBS analyzer. how is the data quality?, how robust is the instrument? what is the lifespan of the battery? etc. any help will be appreciated thank you!
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- 1.8k views
- 1 follower
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Does anyone know the volume charge density (C/m^3) on the earth surface? I can't seems to find it. The only thing I can find is C/m^2, which is ~1nC/m^2, but that doesn't tell me how many *extra* electrons per cubic meter in say an object on earths surface. Even a rough estimate would be great. Thanks. I appreciate any help.
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- 5 replies
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- 1 follower
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I asked this question on several forums and no one knows more than two examples. Those were history forums. Obviously historians doesnt know much about geography. Can someone knows examples where mountain ranges created borders between diffrent ethnic groups ? Any good geographer here? Thanx in advance and sorry for english.
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- 11 replies
- 2.5k views
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What is the importance of carbon di oxide in our environment?
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- 4 replies
- 1.9k views
- 1 follower
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