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User Image thinkbigphysics Posted: Jan 18, 2018 2:15 PM (UTC)

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Perhaps the most iconic image of science is the atom--a spherical blob at the center of atom made of protons and neutrons and a spherical orbit of electrons around the nucleus. Yet, something so seemingly simple and well-known, just like the story of an apple falling on Sir Isaac Newton's' head, happens to be completely false.

In many images of an "atom", the nucleus is portrayed as the center of an atom, which unsurprisingly, is correct. In fact, the fallacy of these images are mainly is the shape of the orbital path of electrons, the size, as well as shape of atomic nuclei.

First of all, aside from the famous protons and neutrons, atomic nuclei consist of a boson (particles that carry the four fundamental forces) known as the "gluon". Carrying the strong nuclear force, it is the strongest known force in the universe (around 10^40 times stronger than gravity). Gluons bind the neutrons and protons in a nucleus together, explaining why the repulsion of like-charges of protons in nuclei don't split the nucleus. However, despite the immense strength of the strong nuclear force, repulsion between the positive charges of protons is unavoidable. The result? Slightly elongated nuclei arising from the repulsion of protons in the nucleus.

Light elements, such as oxygen and carbon, do not contain many protons. The repulsion in the nuclei of such elements is comparatively low. Therefore, these elements do have a somewhat spherical nucleus. On the other hand, when physicists delve into heavier elements, the nuclei of such elements is no longer spherical. As heavy elements contain many nucleons. the repulsion in the nuclei of these elements is high, giving rise to the elongated shape of the nuclei. Thereby, proving the idea of an atom in many people's minds is in fact, inaccurate.

Stay tuned for my next few posts where I'll further elaborate on this topic.

#physics #thinkbigphysics #astrophysics #quantumphysics #nuclearphysics #thermodynamics #classicalmechanics #knowledge #einstein #newton #schrodinger #education #astronomy #biophysics #science #nasa #theoreticalphysics #space #earth #mars #atom #electron #proton #nucleus
User Image 360_kosmokids Posted: Jan 18, 2018 2:14 PM (UTC)

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#360KosmoKids #KosmoAthenea
A los pequeños VIRGO♈️ les encanta el chocolate en todas sus formas. Son muy quisquillosos para la comida. Deben comer frutas como la manzana🍎, pera🍐, naranja🍊. Muchas verduras en ricas ensaladas verdes🥦🥒. Alimentos ricos en fibra como los cereales🥣. Tienden a sufrir de problemas digestivos, por lo que recomiendo masticar muy bien los alimentos y consumir con moderación cereza 🍒 , uvas pasas y yogurt. ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ ⬇⬇DESCARGA NUESTRA APP PARA MÁS ASTROLOGÍA INFANTIL
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#Astrology #Niños #Padres #Astronomy #Space #Kids #Galaxy #Universe #Astrology #Education #Child #Discover #Kid #Parents
User Image doctorofwar Posted: Jan 18, 2018 2:11 PM (UTC)
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If I put this on my amazon wish list, will someone get it for me for my birthday??😬Posting this pic of a gorgeous (and HUGE) armillary sphere in the #Galileo #museum in #Florence because it reminds me of the different tools and methods used by our forebears to make sense of the #universe and what to do in it. Particularly relevant, as it's strategy season for #nerds like me... The #Pentagon is releasing its national defense strategy tomorrow, coming on the heels of the White House National Security Strategy last month. #astronomy #astronomynerd #travel #travels #italy #wanderlust #theheartofwar #warstudies #writersofinstagram #writer
User Image marcandrews84 Posted: Jan 18, 2018 2:09 PM (UTC)
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Looking through last years snaps from our USA trip and see this again.. The night sky in Bryce Canyon. Never seen so many stars in the sky in my life and this was my first attempt at trying to capture them on camera. Breathtaking!
📷Nikon D5300
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#brycecanyon #nightsky #stars #milkyway #stargazing #astronomy #usatour #usa
User Image rumaisash Posted: Dec 20, 2017 4:14 AM (UTC)

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If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?
-Carl Sagan (who died this very day in 1996) #stargazer #astronomy
User Image algolwatch Posted: Jan 18, 2018 2:08 PM (UTC)
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#Eclipse today! Peak 21:02 UTC (4:02 PM EST). This is "Perseus with the Head of Medusa," circa 1554, by Benvenuto Cellini. #Algol, since antiquity, represents the head of #Medusa- pure, unadulterated, unrepentant evil. #PerseuswiththeheadofMedusa #bronze #sculpture #BenvenutoCellini #eclipsingbinary #Astrophysics #astronomy #algolwatch #algolstar #florence #PiazzadellaSignoria
User Image universe_italy Posted: Jan 18, 2018 2:06 PM (UTC)

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Provate a fare il calcolo e scrivetelo nei commenti!
Il numero che vedete qui sopra si chiama raggio di Schwarzschild.
Il raggio di Schwarzschild è un raggio caratteristico associato a ogni massa. Il termine è utilizzato in fisica e astronomia per designare la distanza dal centro della distribuzione di massa a simmetria sferica che dà origine alla metrica di Schwarzschild, alla quale si trova, secondo la relatività generale, l'orizzonte degli eventi.
Il raggio di Schwarzschild fu introdotto nel 1916 da Karl Schwarzschild, quando scoprì la soluzione esatta per il campo gravitazionale al di fuori di una stella dotata di simmetria sferica.
È importante precisare che un buco nero sarà quasi sempre molto più piccolo del suo raggio di Schwarzschild, perché continua a contrarsi; il raggio denota solo la distanza minima dal centro del buco nero alla quale la luce può passare senza essere inghiottita definitivamente da questo. All'interno del campo gravitazionale di un buco nero infatti la velocità di fuga risulta superiore a quella della luce, sicché tale zona apparirà sempre buia. ⬇Tagga un amico!⬇
Cosa ne pensate?😄
Image Credits: Universe_Italy
#stars #universe #astronomy #infinity #galaxy #curiosity #night #darkness #lighting #stelle #curiosità #l4l #follow4follow #f4f #like4like #telescope #planets #all #thinks #around #us #universe_italy #amazing #astrophysics #scientists #science #physics
User Image lhungaro Posted: Jan 18, 2018 2:04 PM (UTC)

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Looking at the bulge of the Milky Way, we can see a lot of nebulae.
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Can you see the pipe and the dark horse in this image? Swipe to see the labels.
User Image vivavj Posted: Jan 18, 2018 2:03 PM (UTC)
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vivavj 13m ago
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‎آن روزها رفتند ‎آن روزهای خوب
‎آن روزهای سالم سرشار
‎آن آسمان های پر از پولک
‎آن شاخساران پر از گیلاس ‎آن خانه های تکیه داده در حفاظ سبز پیچکها به یکدیگر ‎آن بام های بادبادکهای بازیگوش
‎آن کوچه های گیج از عطر اقاقی ها ...
‎فروغ_فرخزاد .
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#universe #stars #aov #astrophotography #f4f #vivavj #galaxy #longexposure #astronomy #space #nightsky #nightphotography #night #universe #like4like #milkywaypics #milkywaygalaxy #phone #trip #sky #milkywayphotography #landscape #astrophoto #nikonru #l4l #trees #instagood #amazing #ig_shotz_le
User Image varunsthakur Posted: Jan 18, 2018 2:01 PM (UTC)

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User Image thenakedsingularity Posted: Jan 18, 2018 2:01 PM (UTC)

moophz
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Southern skies by the very talented @moophz from Chile. Do check his profile and give him a follow! (Swipe left for the annotated version)
If you’d like to be featured on The Naked Singularity, please tag us in your photos and we’ll be happy to repost them in the gallery 🙋🏻
Clear skies 🌌
Words from Moophz:
Carina nebula (NGC 3372), Running Chicken nebula (IC 2944), Southern Pleiades (IC 2602) region.
Eta Carina is by far the brightest nebula in the night sky, it makes the Orion Nebula look so small and dim* in comparison. It covers 3° of apparent size, making 6 times the size of a full moon and 3 times of the Orion Nebula.

Southern Pleiades is one of the closest open clusters to our solar system and 70% fainter than the Taurean Pleiades (as a total apparent magnitude). It is the third brightest open cluster following the Hyades, Pleiades, Alpha Persei and Coma.

The Running Chicken nebula also known as Lambda Centauri nebula, a very strange nebula nickname for a star forming nebulous region, and a clear evidence that astronomers are bad at poultry. *: No part of Eta Carina is as intense as the Orion Trapezium cluster, but surface brightness takes the whole nebula into calculation not just the maximum nebulous brightness of a specific region. The same exposure settings on Orion Trapezium would have blown the highlights in the image.

Under the hood:
A set of 60 frames each of 90s, F/2.4 , ISO800
Canon 6D mod UV-IR cut
Samyang 135mm F/2.0
Tracked by Vixen Polarie
Stacked, calibrated and pre-processed using PixInsight
Color calibrated with Adobe Lightroom
Location: Mar Boutrous bita3 l Atacama
#thenakedsingularity #space #astronomy #universe #nasa #science #photography #nightphotography #longexposure #astrophotography #night #telescope #nightsky #sky #deepsky #picoftheday #instagood #instalike #likeforlike #l4l #instafollow #igers #cosmos #milkyway #stargazing #lookup #tnsreposts
User Image darkskyshothebest Posted: Jan 18, 2018 2:00 PM (UTC)

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I've been getting requests to explain phenomenon occurring on earth as well..
I saw this perfect picture by @seanscottphotography which captures a stunning site of lightning hitting the ocean.. Some regions of the cloud are electrically charged. When a sudden electrical discharge occurs between two clouds or a cloud and the ground we experience lightning. The charged regions in the atmosphere temporarily equalize themselves through this discharge. Lightning creates light in the form of black body radiation from the very hot plasma created by the electron flow, and sound in the form of thunder.

In order for an electrostatic discharge to occur, two preconditions are necessary: firstly, a sufficiently high electric potential between two regions of space must exist, and secondly a high-resistance medium must obstruct the free, unimpeded equalization of the opposite charges.

Objects struck by lightning experience heat and magnetic forces of great magnitude. The heat created by lightning currents traveling through a tree may vaporize its sap, causing a steam explosion that bursts the trunk. Lightning also serves an important role in the nitrogen cycle by oxidizing diatomic nitrogen in the air into nitrates which are deposited by rain and can fertilize the growth of plants and other organisms.

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