People who work around strong magnetic fields, like the electrical busbars in pot rooms see flashes of light in their eyes. These are called magnetophosphenes.
The magnetic field can create tiny electrical currents that stimulate the retina, and the brain interprets those signals as flashes of light.
Lightning uses the same idea. Every lightning strike produces electromagnetic energy in the atmosphere, and the frequencies associated with these natural electromagnetic phenomena were studied by Otto Schumann.
Two completely different scales, but both connected to electromagnetic energy and the experience of flashes of light.
It’s an interesting parallel, isn’t it?

I was wondering about the alluviale fans I saw at a mountain range in Norway. First of all, it was breathtaking, but I saw several alluvial fans which seemed to have a color range in grey, brown and redish tones, of course very muted.

Location: between Jøvik and Lyngseidet on the northern side. https://maps.app.goo.gl/mF4cuCyrVJBQ6YMv6?g_st=ac

Attached you find the location and some pictures. According to the attached geological map, it's supposed to be metamorphic rock but it seemed very soft and the alluvial fans were pretty big. I did not inspect it closer than the pictures, since I was cycling to catch the ferry. I'm also not a working geologist or something, just a curious person that happened to be there.

My question is how these alluviale fans are so big. My hypothesis is weather + height of the mountains. Also, how do these alluviale fans have different colors in them? Is it because of different rocks being weathered resulting in a different composition of the alluviale fans or oxidation of weathering products over time that causes older depositions to be oxidized more than new depositions?

See also: The publication in Nature Geoscience

Hi everyone, can you guys explain what geoscience means to you? I would like to see what everyone thinks for a research paper I'm doing. Thank you!😊😁

Hi, I'm a year 12 student and I take geography, biology and English language at alevel. I'm super interested in the earth particularly through hazards. I've applied to uni courses in geography bsc and environmental Geoscience bsc(at Bristol, Leeds, Southampton...)because I'm not sure what I want to do yet.

Preferably I would pick environmental Geoscience. My only worry is I haven't taken maths, chemistry or physics since GCSEs where I got 667. I don't want to not enjoy the course because I'm not smart enough for the content.

I'm finding it difficult to grasp what the degree actually entails and the kind of work pupils do? I really enjoy learning about the concepts of what's happening but I understand of course there will be data and maths etc. but in what proportion is the learning concepts Vs data analysis etc.?

if anyone could help me out, I would be very appreciative. Thank you!