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A linear back-and-forth motion from purely rotational motion. This is the Tusi couple, a geometric mechanism introduced by the Iranian scholar Nasir Tusi in the 13th century. 🎥 marmarjoon

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Dreams N Science

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388,185 просмотров • 7 месяцев назад •via X (Twitter)

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This video looks like a rotating wheel. But watch just one single sphere. It never rotates. Every ball only moves in a perfectly straight line back and forth. This is simple harmonic motion where linear position follows: x = R cos(ωt) By perfectly offsetting the timing of each straight path, the collective motion creates the illusion of rotation.
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This video looks like a rotating wheel. But watch just one single sphere. It never rotates. Every ball only moves in a perfectly straight line back and forth. This is simple harmonic motion where linear position follows: x = R cos(ωt) By perfectly offsetting the timing of each straight path, the collective motion creates the illusion of rotation.

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Can someone please tell me how this was shot??? Time is moving back and forth but the camera motion is continuous!?! 🤯
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Can someone please tell me how this was shot??? Time is moving back and forth but the camera motion is continuous!?! 🤯

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The Economic Freedom Fighters Johannesburg caucus submitted a Motion: Removal of registered indigent beneficiaries from the city of Johannesburg debtor's list. Motion was approved by council. The EFF is always on the side of the poor. The DA and FFplus rejected the motion and must be remembered as antipoor parties and anti worker.
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The Economic Freedom Fighters Johannesburg caucus submitted a Motion: Removal of registered indigent beneficiaries from the city of Johannesburg debtor's list. Motion was approved by council. The EFF is always on the side of the poor. The DA and FFplus rejected the motion and must be remembered as antipoor parties and anti worker.

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This is a beauty, flip motion the RB and Sweep to the Y/Y surface.
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This is a beauty, flip motion the RB and Sweep to the Y/Y surface.

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SpatialTracker Tracking Any 2D Pixels in 3D Space Recovering dense and long-range pixel motion in videos is a challenging problem. Part of the difficulty arises from the 3D-to-2D projection process, leading to occlusions and discontinuities in the 2D motion domain.
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SpatialTracker Tracking Any 2D Pixels in 3D Space Recovering dense and long-range pixel motion in videos is a challenging problem. Part of the difficulty arises from the 3D-to-2D projection process, leading to occlusions and discontinuities in the 2D motion domain.

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Our feature artist/tutorial today is this great ANIMATION TUTORIAL on FABRIC, by the talented Mazu (Commissions Closed)! That note on OFFSETTING the duplicate motion is a brilliantly simple way to create a sense of ORGANIC VARIATION in the motion. #animation #gamedev #2danimation #manga #anime
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Our feature artist/tutorial today is this great ANIMATION TUTORIAL on FABRIC, by the talented Mazu (Commissions Closed)! That note on OFFSETTING the duplicate motion is a brilliantly simple way to create a sense of ORGANIC VARIATION in the motion. #animation #gamedev #2danimation #manga #anime

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THE MOTION IS CRAZY. THE GREATEST SCHOOL TOUR IS BACK. WENT TO AMERICA AND CAME BACK TO ABJ CITY. THIS ONE IS FOR THE KIDS. #MOTIONSICKNESS
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Our feature artist/tutorial today is this great ANIMATION TUTORIAL on FABRIC, by the talented Mazu (Commissions Closed)! That note on OFFSETTING the duplicate motion is a brilliantly simple way to create a sense of ORGANIC VARIATION in the motion. #animation #gamedev #2danimation #manga #anime
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This Victorian convertible high chair from the 1880s folds from a feeding chair into a push stroller in one motion.
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This Victorian convertible high chair from the 1880s folds from a feeding chair into a push stroller in one motion.

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Fun Fact: The four note riff in the Dead by Daylight soundtrack is called “Dies Irae”, a Gregorian chant in the 13th-century for Requiem masses.
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Fun Fact: The four note riff in the Dead by Daylight soundtrack is called “Dies Irae”, a Gregorian chant in the 13th-century for Requiem masses.

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This technique, called "shaving", where the motion man takes a step or two forward prior to the snap, was brought to the attention of teams by Walt Anderson that this is an illegal motion penalty. Called twice tonight.
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This technique, called "shaving", where the motion man takes a step or two forward prior to the snap, was brought to the attention of teams by Walt Anderson that this is an illegal motion penalty. Called twice tonight.

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This is the first known motion picture, filmed in 1888 by French inventor Louis Le Prince.
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This is the first known motion picture, filmed in 1888 by French inventor Louis Le Prince.

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With the Dragon Boat Festival approaching, this slow-motion footage captures a dragon boat race in Shunde, Guangdong. A living tradition that showcases cultural heritage, teamwork in perfect sync, and the elegance of Chinese aesthetics in motion.
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A classic linear zoetrope uses static images on a wall, which appear animated as a train passes. The motion creates an illusion of movement, with the frame spacing and train speed determining the animation’s frame rate
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What Looks Like A Complex Set Of Spinning Parts Is The Core Of How Trucks Convert Engine Power Into Motion. A drivetrain system transfers torque from the engine through the transmission, driveshaft, and differential to the wheels. Each component plays a specific role. The transmission adjusts torque and speed, the driveshaft carries rotational force, and the differential distributes power between wheels while allowing them to rotate at different speeds during turns. Seeing the system in motion reveals how precisely synchronized these components must be to handle heavy loads and maintain efficiency under stress. In Heavy Vehicles, Power Is Only Useful When It Is Controlled.

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THIS IS WEIRD. THE REFS ORIGINALLY CALLED THIS PLAY TOUCHDOWN. HUDDLED, AND THEN DECIDED TO CALL THIS AN ILLEGAL MOTION ON THE #LIONS. Illegal motion is a non-reviewable play and the refs were not allowed to use replay or NY. Have never seen this before.

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