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Bacteria Flagellar Motor #learnontiktok #intelligentdesign #evolution #molecular #nanomachine #learning #funfacts #biotok #Science #stem #3danimation #atp #biochemistry #coolscience #simulation #atpsynthase #ATP #blender3d A cut-open E. coli slice simulated based on real structures and biology, every molecule you see is a real one: its shape was worked out atom by atom by scientists,using electron microscopes ,X-ray crystallography et al. Everything is drawn to true scale; only time is slowed, about 200×.The sound is not REAL though :) The yellow machine is the flagellar motor: a rotor about 50 nm across, driven by protons flowing through its stator units, turning the hook and filament at ~100 turns per second. Watch how the singal travel to falgelar motor. The teal structures at the lower right are the cell’s “nose” (chemoreceptor array): they sense what’s outside. When the "smell" (for example, nutrient molecules) changes, a protein at their base hands a chemical tag (phosphorylation) to a small messenger. The tagged messenger (orange, cheY) drifts across the cell and latches onto the bottom ring of the motor. When enough of them are attached, the ring flips — the flash is the switch — and the motor runs backwards. Backwards, the propellers fly apart and the cell tumbles; forwards again, it sets off in a new direction. That’s how a cell with no brain finds its way to food. Also in the picture: two more rotary machines (ATP synthase)at the upper left that make the cell’s fuel from the same ion current, a pump that throws out toxins, DNA being copied, a ribosome building a protein, and the three-layer wall with its sugar forest on the outside.

Bacteria Flagellar Motor #learnontiktok #intelligentdesign #evolution #molecular #nanomachine #learning #funfacts #biotok #Science #stem #3danimation #atp #biochemistry #coolscience #simulation #atpsynthase #ATP #blender3d A cut-open E. coli slice simulated based on real structures and biology, every molecule you see is a real one: its shape was worked out atom by atom by scientists,using electron microscopes ,X-ray crystallography et al. Everything is drawn to true scale; only time is slowed, about 200×.The sound is not REAL though :) The yellow machine is the flagellar motor: a rotor about 50 nm across, driven by protons flowing through its stator units, turning the hook and filament at ~100 turns per second. Watch how the singal travel to falgelar motor. The teal structures at the lower right are the cell’s “nose” (chemoreceptor array): they sense what’s outside. When the "smell" (for example, nutrient molecules) changes, a protein at their base hands a chemical tag (phosphorylation) to a small messenger. The tagged messenger (orange, cheY) drifts across the cell and latches onto the bottom ring of the motor. When enough of them are attached, the ring flips — the flash is the switch — and the motor runs backwards. Backwards, the propellers fly apart and the cell tumbles; forwards again, it sets off in a new direction. That’s how a cell with no brain finds its way to food. Also in the picture: two more rotary machines (ATP synthase)at the upper left that make the cell’s fuel from the same ion current, a pump that throws out toxins, DNA being copied, a ribosome building a protein, and the three-layer wall with its sugar forest on the outside.

@iJEP Studio#science1,174,179 views · 116,353 likes · 4,495 comments · 8,590 shares · 75 sec
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Rongjiang County has just been lifted out of poverty and is a small county town on the 18th line. Rongjiang has a mild climate and abundant rainfall. mountain area. In the past few days, Rongjiang County in Qiandongnan Miao and Dong Autonomous Prefecture, Guizhou Province, which has been hit by the nationwide outbreak of "village floods", has suffered a once-in-a-decade catastrophic flood disaster. The officers and soldiers of the stationed troops in Guizhou, as well as the militia, rushed to the scene to carry out rescue operations upon hearing the order. The Rongjiang County Fire and Rescue Brigade participated in the rescue overnight, actively transferring and evacuating the distressed people through boats, ropes and other equipment in the main streets of the county At 17:00 on June 28, the Guizhou Meteorological Station announced that the heavy rainfall had weakened significantly, and the blue warning of rainstorm was lifted. It is expected that the rainfall in the Duliujiang River Basin will significantly decrease in the future, but secondary disasters still need to be prevented. ------------- Rongjiang County is under the jurisdiction of Qiandongnan Miao and Dong Autonomous Prefecture in Guizhou Province. Located in the southeastern part of Guizhou Province, in the southern part of Qiandongnan Miao and Dong Autonomous Prefecture. It borders Liping County and Congjiang County to the east, Leishan County and Sandu Shui Autonomous County to the west, Jianhe County to the north, and Libo County to the south, with a total area of 3316 square kilometers and a total population of 385000. It is a multi-ethnic mixed population county, with ethnic minorities accounting for 81% of the total population and a total of 16 ethnic groups. #Guizhou#Rongjiang#flood #cn #top #china #hot #pla #soldier

Rongjiang County has just been lifted out of poverty and is a small county town on the 18th line. Rongjiang has a mild climate and abundant rainfall. mountain area. In the past few days, Rongjiang County in Qiandongnan Miao and Dong Autonomous Prefecture, Guizhou Province, which has been hit by the nationwide outbreak of "village floods", has suffered a once-in-a-decade catastrophic flood disaster. The officers and soldiers of the stationed troops in Guizhou, as well as the militia, rushed to the scene to carry out rescue operations upon hearing the order. The Rongjiang County Fire and Rescue Brigade participated in the rescue overnight, actively transferring and evacuating the distressed people through boats, ropes and other equipment in the main streets of the county At 17:00 on June 28, the Guizhou Meteorological Station announced that the heavy rainfall had weakened significantly, and the blue warning of rainstorm was lifted. It is expected that the rainfall in the Duliujiang River Basin will significantly decrease in the future, but secondary disasters still need to be prevented. ------------- Rongjiang County is under the jurisdiction of Qiandongnan Miao and Dong Autonomous Prefecture in Guizhou Province. Located in the southeastern part of Guizhou Province, in the southern part of Qiandongnan Miao and Dong Autonomous Prefecture. It borders Liping County and Congjiang County to the east, Leishan County and Sandu Shui Autonomous County to the west, Jianhe County to the north, and Libo County to the south, with a total area of 3316 square kilometers and a total population of 385000. It is a multi-ethnic mixed population county, with ethnic minorities accounting for 81% of the total population and a total of 16 ethnic groups. #Guizhou#Rongjiang#flood #cn #top #china #hot #pla #soldier

@0.61800#china799,618 views · 27,362 likes · 380 comments · 550 shares · 22 sec
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The creation of the blue LED was a technological dead end for over 30 years due to the fundamental physics of light. A diode's color depends on the semiconductor's energy levels: red and green require narrow-bandgap materials, which are relatively easy to synthesize. In contrast, blue light has a short wavelength and high energy, demanding a wide-bandgap semiconductor — specifically gallium nitride (GaN) — which scientists did not know how to process for decades. The primary hurdle lay in growing defect-free GaN crystals and establishing a layer with p-type conductivity. For years, researchers failed to make the material conduct electricity efficiently because hydrogen atoms locked the doping magnesium in place. The breakthrough came from Japanese physicists Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura, who managed to grow clean crystals, activate p-conductivity using heat, and utilize quantum wells to achieve ultra-bright emission. This invention revolutionized the world because without a blue LED, it was impossible to create white light. By coating a blue chip with a yellow phosphor or combining it with red and green (the RGB system), humanity finally developed energy-efficient LED bulbs and modern color screens for smartphones and TVs. For this monumental leap, the creators were awarded the Nobel Prize in Physics in 2014. #Science #education #facts #physicstok

The creation of the blue LED was a technological dead end for over 30 years due to the fundamental physics of light. A diode's color depends on the semiconductor's energy levels: red and green require narrow-bandgap materials, which are relatively easy to synthesize. In contrast, blue light has a short wavelength and high energy, demanding a wide-bandgap semiconductor — specifically gallium nitride (GaN) — which scientists did not know how to process for decades. The primary hurdle lay in growing defect-free GaN crystals and establishing a layer with p-type conductivity. For years, researchers failed to make the material conduct electricity efficiently because hydrogen atoms locked the doping magnesium in place. The breakthrough came from Japanese physicists Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura, who managed to grow clean crystals, activate p-conductivity using heat, and utilize quantum wells to achieve ultra-bright emission. This invention revolutionized the world because without a blue LED, it was impossible to create white light. By coating a blue chip with a yellow phosphor or combining it with red and green (the RGB system), humanity finally developed energy-efficient LED bulbs and modern color screens for smartphones and TVs. For this monumental leap, the creators were awarded the Nobel Prize in Physics in 2014. #Science #education #facts #physicstok

@ʜᴏʟᴠᴇᴋ#science452,593 views · 57,865 likes · 230 comments · 1,367 shares · 15 sec
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Solid, liquid, gas - the states of matter we meet every day are only the beginning. What makes them different is how their particles move, arrange themselves, and interact. In a solid, particles remain near relatively fixed positions. In a liquid, they stay close but move past one another. In a gas, they spread out to fill the available space. But temperature is only part of the story. Pressure can completely change which state is stable. That familiar graph - a phase diagram - maps the states of a substance across different temperatures and pressures. Its boundaries show where transitions happen. At the triple point, solid, liquid, and gas can coexist. Beyond the critical point, the distinction between liquid and gas disappears, creating a supercritical fluid. Push conditions further, and matter becomes even stranger. Plasma contains free electrons and ions, allowing it to conduct electricity and respond collectively to electromagnetic fields. It fills stars and lights up lightning. Near absolute zero, certain particles can form a Bose–Einstein condensate: many occupy the same quantum state, behaving as a coherent quantum system on a scale we can observe. Under enormous pressure, hydrogen can become metallic, with electrons able to move through it and carry electric current. The simplest element in the universe can behave in a radically unfamiliar way. And the list does not end at four or five. Physics distinguishes dozens of states and phases, depending on how they are classified: superfluids that flow without viscosity, supersolids that combine crystalline order with superfluid behavior, and quark–gluon plasma, where the constituents of protons and neutrons are no longer confined inside individual particles. Many emerge under conditions far beyond everyday experience. Matter is more than what something is made of. It is also how its constituents organize themselves - and what the universe allows them to become. #StatesOfMatter #Physics #edit #QuantumPhysics #Science

Solid, liquid, gas - the states of matter we meet every day are only the beginning. What makes them different is how their particles move, arrange themselves, and interact. In a solid, particles remain near relatively fixed positions. In a liquid, they stay close but move past one another. In a gas, they spread out to fill the available space. But temperature is only part of the story. Pressure can completely change which state is stable. That familiar graph - a phase diagram - maps the states of a substance across different temperatures and pressures. Its boundaries show where transitions happen. At the triple point, solid, liquid, and gas can coexist. Beyond the critical point, the distinction between liquid and gas disappears, creating a supercritical fluid. Push conditions further, and matter becomes even stranger. Plasma contains free electrons and ions, allowing it to conduct electricity and respond collectively to electromagnetic fields. It fills stars and lights up lightning. Near absolute zero, certain particles can form a Bose–Einstein condensate: many occupy the same quantum state, behaving as a coherent quantum system on a scale we can observe. Under enormous pressure, hydrogen can become metallic, with electrons able to move through it and carry electric current. The simplest element in the universe can behave in a radically unfamiliar way. And the list does not end at four or five. Physics distinguishes dozens of states and phases, depending on how they are classified: superfluids that flow without viscosity, supersolids that combine crystalline order with superfluid behavior, and quark–gluon plasma, where the constituents of protons and neutrons are no longer confined inside individual particles. Many emerge under conditions far beyond everyday experience. Matter is more than what something is made of. It is also how its constituents organize themselves - and what the universe allows them to become. #StatesOfMatter #Physics #edit #QuantumPhysics #Science

@pitochk#science269,747 views · 38,243 likes · 408 comments · 1,572 shares · 23 sec
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The Earth is never truly still. Deep beneath our feet, enormous tectonic plates are constantly moving, mountains are forming, and energy accumulated over hundreds of years can be released in just a few seconds. Seismology allows us to study these invisible processes and understand what happens deep inside our planet. By analyzing seismic waves, scientists can explore the Earth’s internal structure, from its thin crust to its mysterious core, without ever reaching those depths. But seismology is much more than a way to understand our planet. It is also a science that saves lives. Modern seismic monitoring systems can detect the first waves of an earthquake and send warnings before the strongest shaking arrives. Even a few seconds can make an enormous difference, allowing people to take cover, trains to slow down, and critical infrastructure to activate safety systems. Although scientists still cannot reliably predict exactly when and where an earthquake will occur, advances in monitoring, early warning technology, and engineering are helping communities become better prepared. There is something extraordinary about a civilization that has learned to detect the smallest vibrations of an entire planet, reconstruct its hidden interior, and turn that knowledge into a way to protect millions of lives. #Seismology #edit #Geology #Science #Technology

The Earth is never truly still. Deep beneath our feet, enormous tectonic plates are constantly moving, mountains are forming, and energy accumulated over hundreds of years can be released in just a few seconds. Seismology allows us to study these invisible processes and understand what happens deep inside our planet. By analyzing seismic waves, scientists can explore the Earth’s internal structure, from its thin crust to its mysterious core, without ever reaching those depths. But seismology is much more than a way to understand our planet. It is also a science that saves lives. Modern seismic monitoring systems can detect the first waves of an earthquake and send warnings before the strongest shaking arrives. Even a few seconds can make an enormous difference, allowing people to take cover, trains to slow down, and critical infrastructure to activate safety systems. Although scientists still cannot reliably predict exactly when and where an earthquake will occur, advances in monitoring, early warning technology, and engineering are helping communities become better prepared. There is something extraordinary about a civilization that has learned to detect the smallest vibrations of an entire planet, reconstruct its hidden interior, and turn that knowledge into a way to protect millions of lives. #Seismology #edit #Geology #Science #Technology

@pitochk#science221,379 views · 23,038 likes · 193 comments · 832 shares · 15 sec
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Every microscope is just a different trick for bending, blocking or catching light. Here are 30 of them, traced ray by ray. What you’ll see: Fluorescence: blue light goes in, the sample answers back in green, and a coloured mirror separates the two Darkfield: the direct light is blocked, so only what the sample scatters reaches your eye, and tiny particles glow on black Confocal: a pinhole throws away every out-of-focus ray, leaving one razor-thin slice TIRF: light bounces off the glass, and only cells touching the surface light up Phase contrast and Hoffman: invisible, see-through cells turned into shades of grey Oil immersion and numerical aperture: why the best lenses sit in a drop of oil Abbe’s theory and Fourier filtering: an image is really a pattern of diffracted light STED, structured illumination and single-molecule tricks: the methods that beat the diffraction limit Electron and atomic-force microscopes: seeing with electrons, and “feeling” with a tiny tip The finale: one cell seen four ways, bright, dark, glowing, and sharper than light allows From Leeuwenhoek’s single bead of glass to Nobel-winning super-resolution, it’s all the same light, bent in different ways. Sound on Every ray, every bounce is a note. Which one surprised you most? #learnontiktok #scienceanimation #funfacts #coolscience #simulation #Science #microscope #microscopy #optics #physics #science #light #fluorescence #confocal #biology #lab #stem #satisfying #sciencetok #learnontiktok

Every microscope is just a different trick for bending, blocking or catching light. Here are 30 of them, traced ray by ray. What you’ll see: Fluorescence: blue light goes in, the sample answers back in green, and a coloured mirror separates the two Darkfield: the direct light is blocked, so only what the sample scatters reaches your eye, and tiny particles glow on black Confocal: a pinhole throws away every out-of-focus ray, leaving one razor-thin slice TIRF: light bounces off the glass, and only cells touching the surface light up Phase contrast and Hoffman: invisible, see-through cells turned into shades of grey Oil immersion and numerical aperture: why the best lenses sit in a drop of oil Abbe’s theory and Fourier filtering: an image is really a pattern of diffracted light STED, structured illumination and single-molecule tricks: the methods that beat the diffraction limit Electron and atomic-force microscopes: seeing with electrons, and “feeling” with a tiny tip The finale: one cell seen four ways, bright, dark, glowing, and sharper than light allows From Leeuwenhoek’s single bead of glass to Nobel-winning super-resolution, it’s all the same light, bent in different ways. Sound on Every ray, every bounce is a note. Which one surprised you most? #learnontiktok #scienceanimation #funfacts #coolscience #simulation #Science #microscope #microscopy #optics #physics #science #light #fluorescence #confocal #biology #lab #stem #satisfying #sciencetok #learnontiktok

@iJEP Studio#science12,136 views · 569 likes · 11 comments · 66 shares · 213 sec

Every microscope is just a different trick for bending, blocking or catching light. Here are 30 of them, traced ray by ray. 🔬✨ What you’ll see: Fluore

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Anthropic宣布Claude启用身份验证：护照+实时自拍。 36氪：必须手持证件否则封号。量子位：强制验证是为了更精准封号。 第三方Persona处理数据，17个子处理器可访问你的证件信息。 背后是三重博弈：AI安全vs用户隐私、Mythos级模型的访问管控、中国用户的生存空间。 #Claude #Anthropic #身份验证 #AI隐私 #人工智能 #KYC #AI安全

Anthropic宣布Claude启用身份验证：护照+实时自拍。 36氪：必须手持证件否则封号。量子位：强制验证是为了更精准封号。 第三方Persona处理数据，17个子处理器可访问你的证件信息。 背后是三重博弈：AI安全vs用户隐私、Mythos级模型的访问管控、中国用户的生存空间。 #Claude #Anthropic #身份验证 #AI隐私 #人工智能 #KYC #AI安全

@Tech Bridge#人工智能9,033 views · 74 likes · 3 comments · 17 shares · 160 sec
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中国ai软件对比美国ai软件对比测评思维逻辑思考深度豆包我最近同时测了 国内主流 AI 和 国外主流 AI，用的是同一个问题、同一套标准。结论很残酷：差距不在算力，也不在模型，而在“敢不敢想”表述完整、语气安全、逻辑正确，但关键词大量模糊化，像是在写一篇“不会出错”的说明书。国外 AI：先给结论，再拆逻辑，明确指出主因、次因、争议点，并告诉你：哪些地方不确定，哪些地方有分歧#豆包 #deepseek #人工智能 #科技改变生活 #特斯拉

中国ai软件对比美国ai软件对比测评思维逻辑思考深度豆包我最近同时测了 国内主流 AI 和 国外主流 AI，用的是同一个问题、同一套标准。结论很残酷：差距不在算力，也不在模型，而在“敢不敢想”表述完整、语气安全、逻辑正确，但关键词大量模糊化，像是在写一篇“不会出错”的说明书。国外 AI：先给结论，再拆逻辑，明确指出主因、次因、争议点，并告诉你：哪些地方不确定，哪些地方有分歧#豆包 #deepseek #人工智能 #科技改变生活 #特斯拉

@流浪小钊#人工智能8,642 views · 51 likes · 6 comments · 7 shares · 627 sec
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