View allAll Photos Tagged MAGNETICFIELDS
Everyone has to take a photo of the moon sooner or later...
"With an ivory pipe
And a cummerbund
In the dead of night
On the autobahn
With the long ago
On the radio
And the dreaming moon...
We were young and in love
In a burning town
But the fire went out
I'm alone again now
And I finally know
How cool to be cold
With the dreaming moon
I'll begin again
With another new name
And a whole new life
Full of fortune and fame
But in the 100th year
I'll be right back here
With the dreaming moon"
~The Magnetic Fields
This animation shows the interaction between the Sun's solar wind and the Earth's magnetosphere.
Modified from an animation by NASA (link lost).
The video was created for a www.scitechlab.com/ blog post on the Northern Lights.
The Aurora Borealis or Northern Lights over the village of Lauvsnes in Norways Nord Trondelag.
A group of us were in Norway on a 7 day Eagle photography trip. On this particular night we'd come back from the pub slightly the worse for wear, and suddenly this totally unexpected, epic display of the lights began.
Lauvsnes is a little too far south for displays anything like this usually, and it caught all the locals by surprise too.
Sadly we were stuck in the village with no transport to get out of the light pollution - we'd given our driver the night off and he'd taken his family out on a jolly to Namsos which is miles away!
Despite the location the display was just mind-blowing and is something I'll never forget - it makes you feel very insignificant in natures grand scheme of things - like a mere blip on the screen!
Some time ago, I built a Lego MRI (magnetic resonance imaging) system as a giveaway for a pediatric radiologist. A minifig gets a scan.
In addition the toy was CT scanned.
Here is the result of the scan:
Since 2025, Solar Orbiter is the first Sun-watching spacecraft to ever get a clear look at the Sun's poles. It discovered that at the south pole, the Sun’s magnetic field is currently a mess.
This image shows a magnetic field map from Solar Orbiter's Polarimetric and Helioseismic Imager (PHI) instrument, centred on the Sun's south pole. Blue indicates positive magnetic field, pointing towards the spacecraft, and red indicates negative magnetic field.
There are clear blue and red patches visible right up to the Sun's south pole, indicating that there are different magnetic polarities present (north and south). This happens only for a short time during each solar cycle, at solar maximum, when the Sun’s magnetic field flips and is at its most active. After the field flip, a single magnetic polarity should slowly build up and take over the Sun’s poles.
Solar Orbiter will be watching the Sun throughout its calming-down phase. In 5–6 years from now, the Sun will reach its next solar minimum, during which its magnetic field is at its most orderly and the Sun has the lowest levels of activity.
Solar Orbiter is a space mission of international collaboration between ESA and NASA. Solar Orbiter's Polarimetric and Helioseismic Imager (PHI) instrument is led by the Max Planck Institute for Solar System Research (MPS), Germany.
[Image description: This image shows a magnetic map of the Sun's south pole filled with small red and blue dots scattered across a pale-yellow background. The red and blue colours represent opposite magnetic polarities on the Sun. A set of lines – indicating solar longitude – radiate outward from Sun's south pole near the centre of the image, like spokes on a wheel, dividing the circle into sections.]
Credits: ESA & NASA/Solar Orbiter/PHI Team, J. Hirzberger (MPS); CC BY-SA 3.0 IGO
Some time ago, I built a Lego MRI system as a giveaway for a pediatric radiologist and had it CT scanned later.
This is a volume rendering based on the axial scan. Note that the density of the bricks is different for each color.
Here is a photograph of the lego toy MRI:
The Earth has a magnet field called the magnetosphere. The area of space around the Earth that is controlled by its magnetic field is called its magnetosphere.
The magnetosphere prevents most of the particles from the Sun, carried in the solar wind, from hitting the Earth and pushes these particles sideways so they don't hit the earth head on.
Modified from NASA image.
The image was created for a www.scitechlab.com/ blog post on the Northern Lights.
This is an artist's impression of a unique type of exoplanet discovered with the Hubble Space Telescope. The planet is so close to its star that it completes an orbit in 10.5 hours. The planet is only 750,000 miles (1,207,000 km) from the star, or 1/130th the distance between Earth and the Sun.
The Jupiter-sized planet orbits an unnamed red dwarf star. Hubble detected the planet in a survey that identified 16 Jupiter-sized planets in short-period, edge-on orbits (as viewed from Earth) that pass in front of their parent stars. Hubble could not see the planets but measured the dimming of starlight as the planets passed in front of their stars.
This illustration presents a purely speculative view of what such a "hot Jupiter" might look like. It could have a powerful magnetic field that traps charged particles from the star. These particles create glowing auroral rings around the planet's magnetic poles. A magnetic flux tube links the planet and star. This enhances stellar activity and triggers powerful flares. A powerful stellar wind creates a bow shock around the planet. The planet's atmosphere seethes at 3,000 degrees Fahrenheit (1,600 degrees Celsius).
For more information, visit: hubblesite.org/contents/news-releases/2006/news-2006-34.html
Credit: NASA, ESA, and A. Schaller (for STScI)
The Aurora Borealis or Northern Lights over the village of Lauvsnes in Norways Nord Trondelag.
A group of us were in Norway on a 7 day Eagle photography trip. On this particular night we'd come back from the pub slightly the worse for wear, and suddenly this totally unexpected, epic display of the lights began.
Lauvsnes is a little too far south for displays anything like this usually, and it caught all the locals by surprise too.
Sadly we were stuck in the village with no transport to get out of the light pollution - we'd given our driver the night off and he'd taken his family out on a jolly to Namsos which is miles away!
Despite the location the display was just mind-blowing and is something I'll never forget - it makes you feel very insignificant in natures grand scheme of things - like a mere blip on the screen!
The Aurora Borealis or Northern Lights over the village of Lauvsnes in Norways Nord Trondelag.
A group of us were in Norway on a 7 day Eagle photography trip. On this particular night we'd come back from the pub slightly the worse for wear, and suddenly this totally unexpected, epic display of the lights began.
Lauvsnes is a little too far south for displays anything like this usually, and it caught all the locals by surprise too.
Sadly we were stuck in the village with no transport to get out of the light pollution - we'd given our driver the night off and he'd taken his family out on a jolly to Namsos which is miles away!
Despite the location the display was just mind-blowing and is something I'll never forget - it makes you feel very insignificant in natures grand scheme of things - like a mere blip on the screen!
Endless glass tubing is evacuated and plasma created via high voltage applied to external electrodes. Magnetic fields are created from various coils carrying direct current or sometimes alternating current. Small voltage is measured across internal electrodes within a strong magnetic field between poles of modified iron-core coil made from a transformer.
Il campo magnetico è lo spazio circostante una calamita in cui gli oggetti di ferro risentono dell'azione della forza magnetica. Della limatura di ferro si dispone nello spazio secondo linee ben precise chiamate linee di forza del campo magnetico: esse ci fanno vedere la direzione che assume la forza magnetica. Le linee di forza sono molto più fitte ai poli, sono continue, escono da un polo, entrano nell'altro ed attraversano tutto il magnete.
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The magnetic field is the space surrounding a magnet in which the objects of iron are under the action of the magnetic force. The iron filings displaces according to certain guidelines called lines of force of the magnetic field: we can see the direction that takes the magnetic force. The lines of force are much more dense at the poles, they are continuous, emerging from a pole and entering through the entire magnet.
Apologies for the repetitive series of posts today, but it's rare to have the opportunity to photograph a good display from the aurora borealis (Northern Lights) in East Yorkshire. A strong and persistent solar storm hit the Earth on 23rd March 2023 and my aurora alert App started to ping. A quick glance out of a north facing window confirmed both clear skies AND visible aurora! That was enough to send us all scurrying for coats, boots, camera and tripod and see us on a brisk trot up a hill behind the house to get clear of the streetlighting. Thankfully, the mild weather and the exertion was enough for us to stay warm for over an hour of aurora watching and photography. I took over 200 frames, almost back to back, so will likely post a pseudo time-lapse movie once I have assembled the frames to export them as an mp4 or avi.
Processed from raw using Capture One Pro 23 and then denoised using Topaz denoise v3.7.
Volume Rendering of an MRI scan (T2 Cube) of the brain.
No pathology.
Rendering done with a Carestream workstation.
Esta semana quería hacer algo distinto a lo que (previsiblemente) podría presentarse con un tema aparentemente tan "cerrado" como "Campo".
Sería fácil pensar en prados verdes, árboles y cielos con tonos vivos y contrastados. Yo no. Yo quería mostrar algo que tenía en mente hacía ya algún tiempo, y que al ver el tema me vino como anillo al dedo. Porque pocas cosas más atrayentes hay que la belleza simétrica de un campo magnético creado con un imán y limaduras de hierro.
Y es que, aunque todos los campos magnéticos se rigen por la misma ley física, las partículas de las limaduras nunca se distribuyen igual, con lo que el dibujo resultante siempre es único.
Sandia Labs physicist Thomas Awe examines coils that reduce plasma instabilities in the quest for controlled nuclear fusion at Sandia’s Z machine.
Read more at bit.ly/2OJuSY3.
Photo by Randy Montoya.
I did'nt set out this evening to take pictures of sunspots, I just set out to take some shots of the sunset over my hometown of Wakefield, West Yorkshire UK.
However when I analysed some of the shots I saw markings on the sun, so I checked up on the Web and low and behold the marks are indeed sunspots.
To give the group the official name they are sunspot 1164 and has a "beta-gamma-delta" magnetic field that harbors energy for X-class solar flares.
You really need to view this image in full size to see the spots really clearly.
Swarm is ESA’s first constellation of Earth observation satellites designed to measure the magnetic signals from Earth’s core, mantle, crust, oceans, ionosphere and magnetosphere, providing data that will allow scientists to study the complexities of our protective magnetic field.
Credits: ESA/AOES Medialab
I'm not sure if this really works as a diptych but I really loved Stephin Merritt's look of serious sternness paired with Claudia Gonson's look of whimsical wonder. The Magnetic Fields are an amazing band...definitely one of my favorites and, while they have been around so long, they don't have a ton of popular acclaim perhaps because their lyrics and singing can be a bit peculiar. Still, they have really enriched my life.
It's been a long time since I posed anything. I went to upstate NY for awhile to visit my mom and then to NYC for just a couple of days after that and I'll be headed to Coachella this thursday evening so busy busy busy....but I suppose if you keep busy enough you forget about all of the other things in life that make you sad.
**All photos are copyrighted. Please don't use without permission.***
Copyright © 2013 by Ian J MacDonald. Permission required for any use. All rights reserved
The entire set: www.flickr.com/photos/ianmacdonald/sets/72157636356726526/
These illustrations are meant to represent the elements of the periodic table. The drawings are influenced by the Art Deco friezes seen on buildings of the 1920s and 30s - deities were used to represent the essence of the ideas being represented; such as industries, scientific ideas, civic ideals etc...
While the Art Deco style is an influence I did not want to directly copy what has been already been done or hang slavishly onto examples of Art Deco. I am endeavoring to work in the style, imagining creating something new in that moment when Art Deco was current.
Each element is represented by a goddess embedded in a representational background. The deities are purposely done in a sketchy manner - opposite to the solid background - to represent the quantum mechanical nature of atoms and particles. In quantum mechanics particles have no meaning as solid defined units of matter but are statistical entities described by complex (literally and mathematically) wave functions that provide us with the probable positions and energies of particles and systems of particles - an unsettling prospect for many people.
I represent the essence of the elements by goddesses for several reasons. One, they are more interesting, complex, beautiful to draw than males. Secondly it is more challenging to represent the essence of the elements in a feminine rather than a male manner. Unfortunately, science and chemistry has been male dominated and as such so has the naming and descriptions of the elements. These are meant to somewhat challenge the viewer by juxtaposing the female essence with male dominance in science. It would be too simple and cliche to represent iron, for example, as a Mars-like God. Some of the elements are quite dangerous to living creatures and it is far more challenging to express that in a feminine manner.
I was asked if people would get past the nudity. The answer is "No". But that is OK. I want the beauty and vulnerability to attract attention. Science is after all quite beautiful if one takes the time to stop fighting the math and difficulties in understanding, and immerse themselves in it to appreciate just how weird and strange nature really is be - far beyond anything humans could come up with. The nudity somewhat represents the primal, elemental nature of the different atoms. Clothing, such as suit of armor for iron, is a distraction and again too simple and cliche.
But all in all the representation is not direct. Some influence comes from the elements' names - often from properties of the elements, literary references, where they were isolated, political rivalries, honors for discoverers etc... Some influence comes from the bulk properties of the elements such as harness, conductivity, toxicity, density, etc.... Some of the pieces are inspired by the major uses for the element - in industrial processes, in natural biological processes, nuclear reactions, nucleosynthesis, in everyday objects, and so on.
This is a work in progress and my second go at it. I have been tinkering at this for some time and I think these are closer to the vision in my head than what I have done earlier. Enjoy.
Some time ago, I built a Lego MRI system as a giveaway for a pediatric radiologist and had it CT scanned later.
This is a stereoscopic volume rendering based on the axial scan, to be viewed in crossview technique.
Here is a short video showing the axial scan (scroll through the 2D dataset):
www.flickr.com/photos/voxel123/4036761573/
Here is a photograph of the lego toy MRI:
Crazy Bright Aurora Borealis - Northern Lights in Alaska 03-18-2015 How Bright Do The Northern Lights or Aurora Borealis Get???
On St. Patrick’s Day evening (March 17 until the morning of March 18 of 2015) The Aurora Borealis got So "Crazy" Bright for us all North of Fairbanks Alaska!!!
Bright enough to reflect off the Windshield & Paint of our 4x4 Vehicle, then I pointed the Camera straight up to capture this super bright section of Aurora, it became brighter than a Full Moon! In another image, take a look at my 2015 Aurora Hunting Crew standing on the Green Snow.
The Aurora became so bright that it changed the appearance of the color of the Snow.
Most of these photos are 5 seconds exposures or less, I could literally read a newspaper by the light of the Aurora Borealis that night!
Simply Amazing to watch Live!!!!
Here is a Panning time lapse Aurora Movie I created from another night of Aurora Borealis in Alaska!
Best Regards,
John Chumack
A plastic dish with iron filings is placed upon a bar magnet. The iron filings orient themselves in the direction of the magnetic field.
Out of this world public domain images from NASA. All original images and many more can be found from the NASA Image Library
Higher resolutions with no attribution required can be downloaded: www.rawpixel.com/board/418580/nasa
A plastic dish with iron filings is placed upon a bar magnet. The iron filings orient themselves in the direction of the magnetic field.
The Earth has a magnetic field similar to a bar magnet’s magnetic field, but much larger that reaches far out into space. The area of space around the Earth that is controlled by its magnetic field is called its magnetosphere.
The image was created for a www.scitechlab.com/ blog post on the Northern Lights.
More parents are looking to cell phones to help keep their children safe. But mom and dad should be aware...
In contrast to my previous post—a panorama created from thirty-seven individual photos—today’s image is a single shot, taken with a fisheye lens, another shot from the November 12th auroral sky show.
I didn’t intend to get in the photo, but the see-through effect of me moving in and out of the frame still lets you see the stars despite my presence. As with the panorama, I captured not only the Aurora Australis but also the SAR arc visible that night, spanning the middle of the scene.
A Canon EOS R camera, equipped with a TTArtisan 7.5 mm f/2.0 fisheye lens @ f/2.0, was used to take this shot. I used an exposure time of 30 seconds at ISO 1600.
Okay it might not look as turbulent as the plasma but the system IS turbulent. BTW it's not a photograph. It's a plot from the simulations I do. It looked pretty so I thought I'll share it.
I work in computational plasma physics. I work with so called hybrid plasma codes which we generally run on huge supercomputers with thousands of processors. The main purpose of doing this is to understand the basic nature of turbulent plasmas and in turn apply our understanding to Solar Wind which affects our space weather which is important to predict if we want to make sure that our satellites and astronauts are safe up there. A strong solar storm can also have unpleasant effects on earth.
I know I know too much of geeky stuff here but I hope that you'll agree with me that the picture is pretty anyway :)
More to come soon
Theremin, sapete cos'è?
Me lo sono chiesto anch'io, quando passeggiando in Corso Vittorio Emanuele a Milano, ho visto (e sentito) questo signore dall'aria ispirata solfeggiare con le mani nell'aria attorno ad una misteriosa scatola di legno con antenna ed una specie di maniglia metallica che emetteva un suono melodioso, molto simile a quello di un violino o talora ad un flauto di Pan. Ed ecco spiegato l'arcano: Il Theremin è uno strumento basato su variazioni di un campo magnetico indotte dal solo movimento delle mani del suonatore. Il Theremin è il solo strumento musicale che si controlla coi movimenti del corpo, senza contatto fisico o riferimenti visivi .
Poiché la sua invenzione risale al 1919, si tratta del più antico strumento elettronico. Fu creato dal fisico sovietico Lev Sergeevič Termen, il cui genio fu poi impiegato dalla madre patria per sviluppare tecnologie a uso bellico o spionistico.
Se volete ascoltarlo, vi do qui sotto il link ad un filmato youtube del signore che ho ascoltato ieri.
Se poi volete saperne di piu, crercate Theremin su Google. Dimenticavo, se volete fare un regalo originale per Natale, lo potete anche acquistare su ebay.