All Questions

Good day, I do not fully understand the physical mechanism of formation of Rayleigh waves at the free surface. While their derivation is quite clear and obey free-boundary conditions, it is not clear ...

My father found it in the Himalayas 20 years ago. It was unique looking stone in a rock-fall. It is 6-7cm in diameter, well rounded. It has dark almost black outer stone-like layer and metal center. ...

I have been unable to find a clear answer to the following basic question. How are continental shelves formed - What type of boundary occurs (convergent, divegent, oceanic to continental, etc) and ...

I'm interested in doing data visualization projects about mountains. We have data from http://www.peaklist.org/ultras.html complied by Aaron Maizlish (Who we tried to contact but not sure of his ...

it is green is color With silky luster Hardness is about 7 Found in lake Elsinore mountain s

I found this rock while out walking it’s of a matallic Luster and black in colour, Smooth to the feel but bumpy in places, with one small rough patch shown on the picture and no colour change ...

i found this while walking dog it’s very heavy for its size and itsa about 35mm by 25mm by 20mm

Recently I read about OceanReef's Nemo's garden, which is growing terrestrial plants underwater inside a dome on the seefloor. I did not found any other company doing it. If it is that good as it is ...

When the sea level rises, more of the planet's area is watery and less of it is land. Does this change in surface condition result in a change in global warming, such as a decrease in the net ...

What is exactly done to classify minerals in Earth Sciences such as Geology? How can it be known if one mineral is the same of another should they be visually different?

Can you identify this please???.

I found this rock near a creek bed on the Cumberland plateau about 30 miles north of chattanooga. There area is coal bearing. It has odd knobs and a cavity that goes through it. Seems moderately ...

Found this crystal it's a redish brown

I've read many papers about Grand Solar Minimums and Glassberg Minimums, known to science for very long time, studied and monitored with much of our Public Funds. History shows solar activity is the ...

I want night microphysics RGB composite from EUMETSAT. I'm looking for archived images. I tried finding them on EUMETSAT's data center page. Data from different channels of SEVIRI is available but ...

This is my first post on StackExchange and I would like to ask a question: Is water actually blue or is that just the reflection of the sky?

You are about to depart on a trip to the Andes mountains in Brazil to help local foresters assess the more fertile soils for growing production forests. Although you have never traveled to the area, ...

I read in Walter Alvarez' book T. Rex and the Crater of Doom that the Earth's collision with the large meteor leading to the K-T extinction catalyzed the reaction of atmospheric oxygen and nitrogen ...

We can plot data with polygon in matlab as ...

Please help me identify this stone

This may seem an obvious question but I am unable to understand what the technical term for the surrounding water of an environment is, specifically surrounding a person/animal within that environment....

I did not find any seamounts as close as 100 m to the water surface (100m from the mean surface level at the location of the mountain) that are not part of any Exclusive Economic Zone (EEZ.) Do any ...

This bugged me for a while: Pyroclastic flows are fast (up to 700 km/h (430 mph) according to Wikipedia) and typically roll down the slopes of a volcano. E.g. here https://www.youtube.com/watch?v=...

I'm a nature-loving physics student looking to get into ecology. I'd like to understand as much as I can about modern problems in ecology such as the effect of climate change on atmospheric ...

I found this rock along the Illinois river basin in cave junction, oregon. It was laying on the top layer of a massive beach of rock. It's shape is what drew me too it, then after closer inspection ...

When working with extreme hydro-meteorological events, flood in particular, it is common procedure to classify each event by its return period/recurrence interval. This probabilistic measure has the ...

In 1864 John Muir was hiking in the swamps of Canada when he came across the Calypso Borealis (also known as Calypso Bulbosa). The plant grows in damp and colder climates, mostly in North America. ...

I am analyzing the effect of extreme weather on milk production (Panel data). I am looking at direct effects and indirect effects of weather on animal (milk production). Regarding extreme weather, I ...

Found metallic balls of some type of metal ore surrounded by yellow mudstone the metallic balls crush easily into a fine gray powder. The gray balls are situated between sandstone layers in a soft ...

Where can I find the locations on snow fall recording stations in a particular county or zip code? Is there a way that I can find an hour by hour history of snow fall? That is easy to do for water ...

I am very new in this area and wondering if anyone can answer my following questions: I am running WRF (4.0.3, ideal) to study rounding and truncation. I use the NCL (6.5.0) print command to access ...

Below is an excerpt from The Biology of the Indian Ocean, Bernt Zeitzschel, Sebastian A. Gerlach The more vigorous atmospheric and oceanic circulation during the SW monsoon causes not only the ...

We're finding lots of sea-smoothed rocks at the beaches, and my kids are keen to find out what rocks they are. I'm keen on a site that has good photos and easy explanations for what they are. Much ...

Many years ago I was given, what I was told is, petrified wood. However, I really have my doubts. Is there a way to tell if it is since I have been storing it for all this time. Thank you

Can anyone please tell me what this stone is? Any other information on it would be helpful as well. Thank you!

How much would 1 m3 of an ideal mineral SOIL that has been completely dried (all pore space is empty) weigh in Mg on Earth? Answer = ______ Mg

Why is this feature of plants a good way of estimating how much $CO_2$ was in the Earth’s atmosphere?

I have performed an experiment using a shaking table to simulate the response of a soil base structure to an earthquake. A multi-floor structure was placed on a sand (90% relative density) bed and the ...

Here are the front and back pictures:

This is really weird tell me what it is.

There were many, many examples of this, my photo simply shows a situation where I had even light and time to take a photo without making anyone wait for me. The basic rock is obviously sandstone. ...

Are there any estimates for the reduction of global solar insolation at the Earth's surface that a Tambora scale eruption would bring? If our electrical power generation became heavily reliant on ...

It's somewhere between 5.5 and 7 on the hardness scale Feels very heavy Cold to the touch Doesn't clean up with water, vinegar or alcohol Small bumps on the surface all over

This rock was found in Florida on the beach on top of the sand. There were no others found. Color of rock is white, the outer rim is clear (see through) the inner layer is solid. The inner layer is ...

I am curious as to the possibility of transitioning to Atmospheric Sciences in Graduate study after obtaining a bachelors in geology. I am studying geology, but will have the equivalent of a minor in ...

This rock is 2 3/8", weighs 71 grams has a density of 2.958,I tested the density a few times and its always 2.958, has a hardness of 6-7 almost clear streak test, I tested the streak again and I would ...

Round with crystal looking around it, hard. Seems to have layers in the center. The inside is smooth and the outside layer is textured. The white layers go all the way through the rock. Found on the ...

Are the levels of natural (before the industrial revolution) levels of CO2 and ppm known? Also as a related question, should the "natural" levels be considered before the industrial revolution or ...

I know that scientists have managed to find the surface area of oceans, something around these areas https://hypertextbook.com/facts/1997/EricCheng.shtml, but I wish to find the means, method or ...

Military powers like USA, Rusia and China have programs to heat through electromagnetic waves the Ionosphere. HAARP supposedly is a research program, but run by part of the military of US (Air Force ...