#Allotropes

[materialsscienceandengineering]

Allotropy and Polymorphism

Polymorphism is defined as when a material has more than one potential crystal structure. These phase transformations can occur as a result of different external variables - temperature, pressure, etc. - but typically only refer to crystalline materials. (For example, glass is not a polymorph of silica, it is a metastable phase.) Allotropy is a similar concept, but applies only to pure elements. Carbon has multiple potential phase transformations, such as graphite to diamond (or vice versa), which are considered allotropes of the elements. Because of these definitions, polymorphic and allotropic phase transformations are typically solid-solid transformations.

Sources/Further Reading: (Images source - collegedunia) (msestudent) (material-properties.org) (Polymorphism Wikipedia) (Allotropy Wikipedia)

[virtualmentalitydeer]

Pet Peeve

When people say that they need more pencil lead and not that they need more graphite

[jackrabbitomniscient]

*Horrible cackling noise*

[6-and-7]

Time Ram - Removal of the Daleks

After disabling the dismal Dynotrope with Mel (see: The Krrrrotons), the Doctor must face off against its siblings; Allotrope and Terry Tropes. Keff McCulloch is 'avin' a wank, along with the entire planet of Spiridon. The Thals have crashed their pantry. The Dalek Supreme has its balls in a vise and Davros has a bomb wedged up his crack. Meanwhile, Ace has fallen in love with the invisible man and Sylvester McCoy is doing his best slippy acting. It could only happen on Time Ram: now with 40% more Abslom Daak!

Alternate versions below the cut

[whats-in-a-sentence]

Boron exists in several different crystalline forms (allotropes), each of which is characterised by clusters of 12 boron atoms located at the vertices of an icosahedron (a 20-sided geometric figure), as shown in figure 14.2.

Each boron atom within a given cluster is equidistant from five others and, in the solid, each of these is also joined to yet another boron atom outside the cluster (figure 14.2b).

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[yugiohcardsdaily]

Dimensional Allotrope Varis

"Cannot be destroyed by battle with a monster with the same Type or Attribute as this card. You can declare 1 Monster Type and 1 Attribute; this card becomes that Type and Attribute until the end of your opponent's turn. You can only use this effect of 'Dimensional Allotrope Varis' once per turn."

[kisstheashes]

Would be a fun song to dance to tbh. It just neeeeeeds a choreo hip hop dance for it. With like...20 people you could make this a super effective like...stomp style?? dance with those hard beats in the sample he uses. Idk dance terms that well anymore but you know what I mean. It would be like THUNDER and that's what this song deserves.

also the line "Trace your neck to the woods" makes me insane every time. What a line man. What a goddamn threat. Competes with the line that I think is "cut off my limbs so I cannot go" which sjdhsksjej OKAY

[tenth-sentence]

Three of the red allotropes consist of Se8 rings, thus mirroring the structure of elemental sulfur.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[innonurse]

TympaHealth secures $23M Series A funding round

- By InnoNurse Staff -

TympaHealth has raised $23 million in Series A funding led by Octopus Ventures to expand access to its technologically advanced hearing assessment and diagnostic solution.

Read more at TympaHealth/PRNewswire

///

Other recent news and insights

Northgate Technologies announces the acquisition of Allotrope Medical (InnovationMap)

Wearables: Amazon discontinues Halo products (Amazon)

Biomica has announced the completion of a $20 million funding round led by Shanghai Healthcare Capital (Biomica Ltd./PRNewswire)

Telix aims to accelerates AI program with acquisition of Dedicaid (Telix Pharmaceuticals Limited/PRNewswire)

[softly-savage-mint-yoongi]

i started rereading Allotrope due to some of my delusional thoughts and once again i’m mesmerized by it 😩😩 your writing is amazing,, manifesting more suho ficsfrom you 🤧

Hi sweetness!

I'm so happy you're revisiting my story abd loving it all over again! I am also forever in delulu thoughts about Junmyeon, so I can RELATE. 🤌🏻😩

I'm happy you're able to get the fix you're needing from my fic LOL! 😘

[materialsscienceandengineering]

On-surface synthesis of carbyne: An sp-hybridized linear carbon allotrope

In a study led by Prof. Wei Xu (Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University) and published in the journal National Science Review, a research team achieved the successful synthesis of a one-dimensional carbon chain on the Au(111) surface, with the longest chain containing approximately 120 carbon atoms, and the polyynic nature of the carbon chain was unambiguously characterized by bond-resolved atomic force microscopy (AFM). The creation of new carbon forms with different topologies has emerged as an exciting topic in both fundamental chemistry and materials science. Carbyne (linear carbon chain), an elusive sp-hybridized linear carbon allotrope, has fascinated chemists and physicists for decades. Due to its high chemical reactivity and extreme instability, carbyne was much less explored.

Read more.

[jackrabbitomniscient]

Allotrope the crazy scientist

[workersolidarity]

🇮🇱🇵🇸 💥ISRAELI MILITARY REPEATEDLY USING WHITE PHOSPHORUS ON DENSELY POPULATED GAZA AND LEBANON

Israel's use of White Phosphorus in military operations in densely populated Gaza and Lebanon puts civilians at risk of serious and long-term injuries according to a new Human Rights Watch report on the Israeli-Palestinian conflict.

White Phosphorus is a munition that uses an allotrope of the chemical element phosphorus to create a smoke, illumination or incindiary effect. White Phosphorus burns upon contact with air and reaches temperatures of 800°C [1'472°F].

White Phosphorus can often cause severe burns and injuries which can than absorb the phosphorus, leading to organ failure.

White Phosphorus can be used for marking, signaling, obscuring, or as an incindiary weapon to set fires that burn incredibly hot, devouring soldiers, equipment, and civilians alike.

"Any time that white phosphorus is used in crowded civilian areas, it poses a high risk of excruciating burns and lifelong suffering,” said Lama Fakih, Middle East and North Africa director at Human Rights Watch. “White phosphorous is unlawfully indiscriminate when airburst in populated urban areas, where it can burn down houses and cause egregious harm to civilians.”

Human Rights Watch verified videos taken in Lebanon and Gaza on October 10 and 11, 2023, respectively, showing multiple airbursts of artillery-fired white phosphorus over the Gaza City port and two rural locations along the Israel-Lebanon border, and interviewed two people who described an attack in Gaza.

Human Rights Watch spoke to the people who were from the Al-Mina sector of Gaza City who described "observing strikes consistent with the use of white phosphorus."

Both witnesses, who were in the street and an office building at the time, described seeing air strikes with explosions in the sky, followed by white lines falling to the Earth. The attacks took place some time between 11:30pm and 1am local time.

Both witnesses told Human Rights Watch the smell was strong and stifling and led one of the witnesses to approach a nearby window and record the incident from his phone.

"Human Rights Watch reviewed the video and verified that it was taken in Gaza City’s port and identified that the munitions used in the strike were airburst 155mm white phosphorus artillery projectiles," says the Human Rights Watch report.

"The use of white phosphorus in densely populated areas of Gaza violates the requirement under international humanitarian law to take all feasible precautions to avoid civilian injury and loss of life."

Israeli authorities refuse to confirm or deny the use of White Phosphorus despite the testimony of witnesses and video recordings.

Attacks using air-delivered incendiary weapons in civilian areas are prohibited under Protocol III of the Convention on Conventional Weapons (CCW). Though weaker restrictions exist for ground launched incindiary weapons.

Protocol III applies only to weapons that are “primarily designed” to set fires or cause burns, and thus some countries believe it excludes certain multipurpose munitions with incendiary effects, notably those containing white phosphorus.

#source

@WorkerSolidarityNews

[germhammy]

“Post practice Team meeting”

Bianca: a very good practice

Wednesday: some of you have been practicing.

Bianca: indeed. Illyana, Your style is much improved. Miguel, you have competition

Illyana: I will work with him. If his injury is fully healed he should be allowed to be one the team to face De La Cruz

Miguel: thank you. But Nevermore is more important than my family feud

Wednesday: nonsense. Family is important. I have come to accept that this team is more important than my need to outdo my mother’s accomplishments. We are a family. We must make Nevermore history, but we are a team. A family. Besides, before your injury I was leaning towards including you despite your family feud

Miguel: thank you

Bianca: you were good enough to have earned a spot last time we faced Ilvermorny but you still have to earn a spot on the squad this time out. That goes for everyone

Wednesday: I think a good strategy would be to pick a entirely different team than the one we took to Nevermore

Bianca: I agree. They will be expecting the same team.

Rey: that is pretty much what Marc has reported. They don’t utilize video footage to analyze past matches

Granny Frump: they believe in “pure magic” Morticia was accepted into both Ilvermorny and Shiz.

Morticia: I was?

Granny Frump: yes you were. But when we sat down and had an in person interview? You were rejected. Shiz Academy welcomed you with open arms. We we all set to send you to there but Ophelia cried. She didn’t want you to go so far away

Wednesday: -rolling her eyes- sounds like Pugsley

Bianca: so there you have it. Miguel, Illyana? I want the two of you to work hard to try and make it onto the squad. Those of you who were on the squad that traveled? Do not think that means you’re automatically on the squad

Jack: pretty sure I’m not making it to the fighting squad

Wednesday: probably not. But your service to the team preparation is most appreciated. Yours and Enid’s attention to detail making sure the lames are clean, helmets properly stored. Lists for everyone on what to take? That will still be much appreciated. Less time having to worry about that and more time for practice.

Bianca: indeed.

Xavier: hey! I pay attention to details!!

Ajax: -under his breath to Enid who was sipping water- yeah. Like the details of the curvature of Wednesday’s breasts

Enid: -spewing the gulp of water from her mouth- AJAX!!

Wednesday: Enid? Ajax? Do you have something to add to the discussion?

The both of them turned red shaking their heads

Xavier: just them proving they are not fit to be on the team! Come on, Bianca. Can’t you see the only reason Enid is ‘equipment manager’ is so that Wednesday can have an excuse to be on the team?

Bianca: says the person who throws his mask against the wall for fun and wads his cords up so tightly that we have had to have them replaced? At least Enid knows how to take care of her equipment. The gear is not cheap.

Wednesday: how do you feel when you see someone in art class not covering the paint they have just used or cleaning a brush inadequately?

Xavier: that’s not the same thing!

Wednesday: is it not? It drives me mad to see people miss handle musical instruments. Such as touching the hairs on a bow.

Finn: mishandling something such as a firearm? If one is as careless as you are with our fencing gear, Xavier with the firing pistols and rifles? Not properly cleaning the triggers, properly allotropes and sights? Or worse not properly storing ammunition?

Xavier: now all of you are just picking on me

Bianca: I suggest you practice the style that is favored by Ilvermorny, Xavier. While a style heavy team is not as important this time around? It will be a factor

Wednesday: good idea. They will be expecting that.

Jack: does that mean I get to be on the squad? -replying with a chuckle-

Wednesday: that would be quite an unexpected sight to see. If you can keep within the rules?

Morticia: Bianca, Wednesday? May I say something?

Bianca: of course, Mrs Addams

Morticia: please. Call me Morticia. Thank you. As a former Nevermore student and fencing captain? I am sure you are aware. Nevermore has never bested Ilvermorny. The away tournament victory was a first. The only schools that have ever bested them have been Magic heavy schools. The magic is hardly ever called out because it’s either not contested because it’s not seen. Many still fail to believe in its validity even if it is called out. My last tournament as captain Nevermore came in third place. We lost to Shiz Academy. We one our Bronze medal match. Shiz Academy went on to defeat Ilvermorny in an epic display of revenge from the previous year.

Xavier: then why not teach us magic? If it’s allowed?

Bianca: because it technically isn’t

Wednesday: Magic is not something one learns in a few months. Xavier. We do not even have that long. Just as not everyone had to talent for drawing/painting or music? Not everyone can practice magic. Take my grandmothers. While both are witches? Their talents in witchcraft are vastly different. I may be proficient be able to play the viola? That does not mean I can automatically play the violin

Bianca: wait. I thought you play cello

Wednesday: I can play a few instruments. Viola being one. But my passion is the cello

Morticia: the important thing is know your opponent and know yourself. Always strive to be yourself. Don’t rely on others but always support each other.

Wednesday: thank you, mother. Xavier. Do not expect me to pick you just because you think I owe it to you. Enid purchased a ticket to go to Ilvermorny. She did not actually expect to be a part of the squad. She got a refund of course not needing the ticket. Unlike you.

Bianca: now I expect all of you to practice. I’m sure Coach Vlad will allow you to request specific sparring partners or instructions during your fencing class. See all of you at our next team practice Tuesday night

Xavier: I heard that they are filming an “important scene” Tuesday night. Are you going to show up Wednesday?

Morticia: Xavier.

Wednesday: I got this, Mother. -Morticia nodded and stepped aside- Xavier. You seem to know everything, do you not? Did your new friend Mr Johnson tell you that? The “important scene” you are referring to has been moved to Thursday perhaps Friday night as they need to work on some logistics with Hunter and perhaps procure some equipment to ensure his safety. I will be here Tuesday evening. This practice has ended. Enid. Ajax. I wish to speak with you.

[tenth-sentence]

The element is a grey metallic solid at ambient temperatures and at least four other allotropes are known.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[geologyin-blog]

Lonsdaleite and diamonds Both are allotropes of carbon, but while diamond has a cubic crystal structure, Lonsdaleite's atoms are arranged in a hexagonal pattern. This structural difference is key to Lonsdaleite's potential. Read more here: https://www.geologyin.com/2024/08/is-lonsdaleite-harder-than-diamond.html