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A DNA double helix molecule made of drones! #AGBT23

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Iman Hajirasouliha

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65,344 görüntüleme • 3 yıl önce •via X (Twitter)

EğitimBilim & Teknoloji#AGBT23
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They are not an unlikely duo, but rather a perfect, complementary pair! DNA and RNA are very similar, but they have unique biological roles. RNA and DNA are both a type of molecule called a nucleic acid, but their structures are different in subtle ways.
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They are not an unlikely duo, but rather a perfect, complementary pair! DNA and RNA are very similar, but they have unique biological roles. RNA and DNA are both a type of molecule called a nucleic acid, but their structures are different in subtle ways.

National Human Genome Research Institute

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Most chiral molecules arise from carbons being bonded to 4 different atoms, which are called sterocenters. The makes the molecule have a different mirror image that cannot arise from simple rotation. But, you can have chiral molecules not from stereocenters. You can have chirality that doesn't come from a single point in the molecule. It comes from some global property. The classic example is helicene, which doesn't have any stereocenters, but has chirality because of hits helical structure. This means you cannot capture this molecule with a graph, and thus SMILES or a string representation cannot capture this. Of course natural language comes to the rescue (just say in words if it's left-handed or right-handed helix), but it's an interesting failure mode for viewing molecules as just a graph. Another example of a molecule with helical chirality is DNA. DNA is actually chiral in two ways, which is kind of confusing. It has both helical structure and stereocenters. You won't find the stereocenters ever flipped, but left-handed helical DNA can exist (called Z-DNA). Interestingly, making the flipped stereocenter of DNA could be part of an entire mirror organism (mirror RNA, DNA, AAs, sugars) that would then be potentially invisible to our immune systems. This has been recently proposed as a "mechanism" for how a runaway AI system could cause harm to Earth. I find it to be a pretty tedious and difficult way to cause harm, but it is intellectually cool. Anyway - this came up in a PhD defense and I have a lot of arcane knowledge about this I wanted to dump.
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Most chiral molecules arise from carbons being bonded to 4 different atoms, which are called sterocenters. The makes the molecule have a different mirror image that cannot arise from simple rotation. But, you can have chiral molecules not from stereocenters. You can have chirality that doesn't come from a single point in the molecule. It comes from some global property. The classic example is helicene, which doesn't have any stereocenters, but has chirality because of hits helical structure. This means you cannot capture this molecule with a graph, and thus SMILES or a string representation cannot capture this. Of course natural language comes to the rescue (just say in words if it's left-handed or right-handed helix), but it's an interesting failure mode for viewing molecules as just a graph. Another example of a molecule with helical chirality is DNA. DNA is actually chiral in two ways, which is kind of confusing. It has both helical structure and stereocenters. You won't find the stereocenters ever flipped, but left-handed helical DNA can exist (called Z-DNA). Interestingly, making the flipped stereocenter of DNA could be part of an entire mirror organism (mirror RNA, DNA, AAs, sugars) that would then be potentially invisible to our immune systems. This has been recently proposed as a "mechanism" for how a runaway AI system could cause harm to Earth. I find it to be a pretty tedious and difficult way to cause harm, but it is intellectually cool. Anyway - this came up in a PhD defense and I have a lot of arcane knowledge about this I wanted to dump.

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Camellia in bloom made of 1,618 drones
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a smol molecule
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a smol molecule

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doesn't even know what a molecule is
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doesn't even know what a molecule is

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🚨 BREAKING: Scientists just found a SPECIFIC sugar molecule made by gut bacteria that appears to TRIGGER ALS and dementia. 70% of ALS/FTD patients had it. Only 33% of healthy people did. And they found a way to STOP it. 🧵
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🚨 BREAKING: Scientists just found a SPECIFIC sugar molecule made by gut bacteria that appears to TRIGGER ALS and dementia. 70% of ALS/FTD patients had it. Only 33% of healthy people did. And they found a way to STOP it. 🧵

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#Breaking: #Indian military has shot-down a dozen of #Turkish made YIHA-III suicide drones of the #Pakistan Army today. These drones were recently delivered by #Turkey to #Pakistan to be used immediately against #India.
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#Breaking: #Indian military has shot-down a dozen of #Turkish made YIHA-III suicide drones of the #Pakistan Army today. These drones were recently delivered by #Turkey to #Pakistan to be used immediately against #India.

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Hi SHATTA WALE make sure you conduct a double DNA testing after the baby arrives. Per the history of your mega toned woman, she can’t be trusted. Look sharp
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Hi SHATTA WALE make sure you conduct a double DNA testing after the baby arrives. Per the history of your mega toned woman, she can’t be trusted. Look sharp

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🇺🇦🇷🇺 At this moment, Moscow is being attacked by a large number of Ukrainian drones. Video is made Grok AI
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🇺🇦🇷🇺 At this moment, Moscow is being attacked by a large number of Ukrainian drones. Video is made Grok AI

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Chinese agricultural drones are converted into bombers. As much as 99% of agricultural drones in the US are made in China by DJI and XAG.
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made this non-fnaf related (finally) animation yesterday, a murder drones animation!!!! YIPEEEEEEE!!!!! :DDDDD
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made this non-fnaf related (finally) animation yesterday, a murder drones animation!!!! YIPEEEEEEE!!!!! :DDDDD

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Seeing a "bootleg" edit of my streams jump into all-out sprite animations made me do a double take 😮 SO COOL
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Seeing a "bootleg" edit of my streams jump into all-out sprite animations made me do a double take 😮 SO COOL

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🇺🇸-made International MaxxPro with additional protection against FPV drones — in details. 📹: SPECIAL OPERATIONS FORCES OF UKRAINE
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