All Questions

0
votes
0answers
2 views

Simple way to understand these narrow frequency peaks in recently published “ice shelf singing”?

The Earther.Gizmodo.com article Scientists Discover a Weird Noise Coming From Antarctic Ice Shelf links to the American Geophysical Union video (an more importantly audio) (AGU) This is what an ...
0
votes
0answers
3 views

Why don't tropical cyclones hit Hawaii?

Image by Wikipedia user Citynoise using NOAA data. If you look at this map of tropical cyclone tracks, you'll notice that there's a gap in the central northern Pacific where tropical cyclones ...
3
votes
0answers
14 views

How is sea level measured?

In comments on Earth changes due to global climate change, rising sea levels is a regular trope. I haven't quite gotten to investigating "rising sea level" claims and data mostly because I have no ...
1
vote
1answer
16 views

Is this a rock with metal or gold?

I found these really hard rock while i was excavating. It caught my attention the different colors.
1
vote
1answer
11 views

What kind of purple stone is this?

I found this stone and I do not know what type of stone is this?
0
votes
0answers
27 views
0
votes
0answers
26 views

what shape is earth? [on hold]

earth is a cube? earth is a donut? earth is flat!!!! PROOF! right now its 3am but the fbi just turned off the lights to hide the flat earth i know it!!!!1!! donald trump is also a reptilian and cats ...
0
votes
1answer
31 views

Need help identifying this rock that my grandfather found in or around Hot Springs, AR 75 years ago. PLEASE

I inherited this from my grandfather and all i know is that it's very heavy and it appears to have gold content. It's actually just been sitting around my house as a door prop the past 20 plus years. ...
2
votes
0answers
20 views

How is the specific heat of a wet bulb determined?

I am quite new to the psychrometry and the study of humidity, and I'm currently learning about the dry-bulb wet-bulb thermometry. As far as my understanding goes, the wet bulb is connected to a source ...
6
votes
2answers
51 views

Probability ( weather tomorrow = weather today)?

What is the probability that the weather tomorrow will be equal to the weather today (e.g. more specifically, if we know there had been more than 1mm precipitation during one day, what is the ...
3
votes
0answers
22 views

Carbon Isotopic Ratio of Methane on Mars

I was wondering, if we measured the carbon isotopic ratio of methane on Mars and found that it was very negative (i.e. it contained more carbon-12 than carbon-13), would this provide definitive proof ...
7
votes
3answers
67 views

Will the oceans swallow all of the land?

I am wondering why, since the oceans could feasibly hold all of the dry land, they in fact do not. For example, the Mariana Trench drops to -10.9km, while Mount Everest only reaches to +8.8km. ...
-3
votes
0answers
28 views

The black round smooth rock Identifiy [on hold]

I got a black round rock that come down with lighting thunder. Could anyone assist me to identify the rock. Rgds Nancy Moses
-2
votes
0answers
21 views

What are these purplish-brown and white rocks? [on hold]

I found these rocks along the train tracks in Monroe, Wisconsin. I mostly only took the ones with lots of white in them, but most didn't have that. I'm not sure what these rocks would be called. (...
1
vote
0answers
18 views

Minimum Surface Water for Plate Tectonics?

There is good evidence that the presence of water on a planet's surface is necessary for that planet to have plate tectonics. My question is this: Do we know if there is a minimum amount of surface ...
0
votes
0answers
19 views

What are some of the best rare natural phenomena that occur on Earth? [on hold]

What are some of the best rare natural phenomena that occur on Earth?
0
votes
0answers
15 views

Estimating the resulting percentage increase in the fixation rate of a gas in the atmosphere from a given biogeochemical cycle

Human activity over the past century has affected the nitrogen cycle by cultivation of nitrogen-fixing crops and application of industrial fertilizer to crops (increasing the land biofixation rate ...
0
votes
1answer
34 views

If storms form above low pressure regions, why doesn't the eye of a hurricane, a low pressure region, have any storms?

If this is due to the Coriolis Effect, my other question would be how does the wind go upwards to form the storm clouds?
1
vote
1answer
607 views

What is this big Black Mass in Syria, as seen on google maps? [duplicate]

What is this big black dot on the satellite view of google maps, located in Syria at about 4:00 from Damascus?
0
votes
0answers
21 views

Help Identifying this Mineral?

I have the following rock/mineral but can't seem to identify. Anybody have an idea what it might be? It's heavy, 3"x3", nonmagnetic (but slightly repels a neodymium magnet), blackish in color with ...
0
votes
0answers
19 views

Can anyone tell me what type of metal this is?

[![enter image description here][1]][1][![Shiny rock...][2]][2]Streak is silver / gray and shiny Hardness around 6 Extremely heavy for its size Has what appear to be a few small holes drilled into ...
5
votes
3answers
47 views

Hudson Bay Has Low Gravity?

Is there lower gravity at the Hudson Bay? How does this happen? And where exactly is this because I might want to go.
7
votes
1answer
137 views

Has a hurricane or cyclone ever reformed after passing over a large land mass?

Hurricane Michael recently hit Florida as a Category 4 storm, and after the remnants passed across a great deal of the east coast of the United States it appears to have re-emerged into the Atlantic ...
1
vote
1answer
30 views

Is this Mutton Fat Jade?

Found this near the Shannon River close to Carrick on Shannon Irelandenter image description here Could this be Mutton Fat Nephrite Jade? Thank you
2
votes
1answer
32 views

On what basis are hurricanes,cyclones or typhoons named? [duplicate]

now its well known that common names are used to name weather storms but on what bases are they named ? is it the person who first notices them ? Is it the the most common name in the region where the ...
2
votes
1answer
30 views

predicting low tide

At 18:03 PDT at La Jolla Cove the lifeguard's bulletin board stated predicted low tide at 5:36 (17:36 PDT?). In fact, it was already after 6:00 and the sun had not yet set. The moon was a waxing ...
0
votes
0answers
26 views

Any idea type of rock?

Metorite looking rock from Idaho desert I believe, feels like it has a slight magnetic pull, but the magnet I have (which isnt very strong) doesnt stick, extremely heavy for its size. can you help me ...
1
vote
1answer
22 views

What is this rock found in the Illinois Valley of Southern Oregon?

I found this odd shaped rock along a rocky river bed (dry) near the Illinois river in Cave Junction, Oregon. It is shaped like a Club and is super heavy. It has a distinguishable ring around the ...
1
vote
0answers
19 views

Are Indonesian 2018 earthquakes related?

Indonesia had multiple major earthquakes this year A series of earthquakes in Lombok between July and August, including a 7.0 mainshock The 7.5 earthquake + tsunami in Sulawesi, September 2018 A 6.0 ...
3
votes
1answer
39 views

Why are climate anomalies calculated relative to 1981-2010 average?

What is the purpose for doing this? Is it inaccurate to calculate anomalies for variables such as sea surface temperature and precipitation based on a different time period?
1
vote
0answers
26 views

Amber rock identification request

This red/orange/brown stone has a hardness of 8 and a bright streak. The closest thing I've ever seen was amber, but amber is way softer than this What kind of stone is it?
1
vote
1answer
54 views

Is the representation of Earth oriented correctly in this image?

Is there something wrong with this image? I found it in Wikipedia's article Ecliptic coordinate system and the image's source page is here. What bothers me is the orientation of the Earth's surface (...
4
votes
0answers
46 views

How do the Madden Julian Oscillation (MJO) waves originate?

I was reading about tropical cyclones and tropical waves and there I saw a study mentioning its relationship with MJO activities. I saw several research papers which discuss about MJO waves. They only ...
1
vote
2answers
33 views

What is this stratefied limestone sphere?

What is this stone from the alps of provence? It's two spheres, one of them is made of at least 25 layers.
0
votes
0answers
22 views

What whill hapen if the 2 mountains goin thogether [closed]

Hello it is a wierd question bit can sombody answer i have tried evryting hellps
1
vote
1answer
36 views

Please identify- no origin known but given to me by a geologist

A very dear man who love his job as a geologist gave this to me. He’s been all over the country so I have no idea where he may have picked it up
6
votes
1answer
44 views

How can half a degree of average temperature result in such devastating impact on coral reefs?

Yesterday I read a number of news stories about the new IPCC's (International Panel on Climate Change) report regarding the current state of global warming. It reported that we are on track for ...
1
vote
0answers
30 views

What is this Stone

I found this stone in my father's old stuff. I tried to search online for about it but I don't know what is it. It looks to be a rare stone. Can someone identify it?
1
vote
0answers
12 views

Is there a real time tool to monitor electric flow in the clouds?

I was wondering if there is a tool that shows electric charge in the clouds. Something like this, but more detailed.
1
vote
2answers
55 views

Will kerosene reserves deplete long before oil?

Assuming that the oil reserves would end at a certain date, would it be expected that the kerosene be no longer used as fuel on a previous date due to the quality fall of barrels? If so, would that ...
0
votes
0answers
35 views

Why has my rock stopped being translucent?

I found a rock on the beach in northern California that was very translucent ,super clear. 5 or 6 hrs later when I got home it was still like I found it. The next day it had clouded up. ...
0
votes
0answers
21 views

Glass bottels are generally manufactured as clear green and brown colored [closed]

Glass bottels are generally manufactured as clear green and brown colored. How is the mineral quartz colored. What do the glass manufacturer do to produce green or brown glass bottles.
0
votes
0answers
34 views

Can anyone identify these rocks?

I was swimming in the Mediterranean Sea and found all these shiny rocks underwater, so I dove down and got them. Any clue what these are? To be precise off the west coast of Northern Italy. Hopefully ...
0
votes
0answers
27 views

What is this rock cluster ( it’s magnetic )

Found the rock in the mud, it attracts a magnet.
0
votes
1answer
47 views

When it is said that air moves from warm object to a cold object, how is it possible that air moves from high pressure area to low pressure area?

By air moving from high pressure area to low pressure area means that it's moving from colder area to a warmer area, are they both not contradictory? I might have understood something in a wrong way, ...
0
votes
0answers
22 views

Maybe Chinese Bamboo item [closed]

I recently purchased these at an estate sale, can anyone tell me what they are?
1
vote
0answers
14 views

CALPUFF dispersion model - orography

Is it possible to use CALPUFF in ISC-type single-station mode accounting for "simple" terrain effect (like in ISC)? Can I set the orography out of CALMET?
5
votes
0answers
42 views

How much does the Earth's center of mass move around?

How much does the Earth's center of mass move around relative to the most stationary objects on the surface? I'm wondering whether the molten outer core has enough asymmetry to move the center of ...
1
vote
0answers
34 views

If all the world's ice were to melt, would this shift the earth's centre of gravity with consequential effects on sea levels?

This question on Maths SE asked how we might calculate the effect on sea level if all the world's ice (ie including the whole Antarctic ice sheet) were to melt. I posted an answer containing ...
0
votes
1answer
32 views

What were CO2 levels in Carboniferous?

What were CO2 levels in early and late Carboniferous, an what were mean levels? Who are the sources for these figures?

15 30 50 per page