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<url><loc>https://3dcgvideo.com/</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod></url>
<url><loc>https://3dcgvideo.com/demos</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod></url>
<url><loc>https://3dcgvideo.com/demos/01_engine</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/01_engine/poster-b509604a3b.jpg</video:thumbnail_loc><video:title>How a Four-Stroke Engine Works</video:title><video:description>How a Four-Stroke Engine Works: a sample 3D animation with narration and captions. Turning fuel into rotation. Most car engines are four-stroke engines. Th…</video:description><video:content_loc>https://3dcgvideo.com/demos/01_engine.mp4</video:content_loc><video:duration>56</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/02_transformer</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/02_transformer/poster-812ea8c54e.jpg</video:thumbnail_loc><video:title>How a Transformer Changes Voltage</video:title><video:description>How a Transformer Changes Voltage: a sample 3D animation with narration and captions. Changing voltage with electromagnetic induction. A transformer is a d…</video:description><video:content_loc>https://3dcgvideo.com/demos/02_transformer.mp4</video:content_loc><video:duration>64</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/03_mosfet</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/03_mosfet/poster-12d6b4a5be.jpg</video:thumbnail_loc><video:title>How a Transistor (MOSFET) Switches</video:title><video:description>How a Transistor (MOSFET) Switches: a sample 3D animation with narration and captions. How voltage switches current on and off. A MOSFET is a type of trans…</video:description><video:content_loc>https://3dcgvideo.com/demos/03_mosfet.mp4</video:content_loc><video:duration>56</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/04_chipfab</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/04_chipfab/poster-e868df1d42.jpg</video:thumbnail_loc><video:title>How a Semiconductor Chip Is Made (Exposure and Etching)</video:title><video:description>How a Semiconductor Chip Is Made (Exposure and Etching): a sample 3D animation with narration and captions. Print patterns with light, etch, and stack. Sem…</video:description><video:content_loc>https://3dcgvideo.com/demos/04_chipfab.mp4</video:content_loc><video:duration>56</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/05_cpu</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/05_cpu/poster-62c4d24327.jpg</video:thumbnail_loc><video:title>How a CPU Executes Instructions</video:title><video:description>How a CPU Executes Instructions: a sample 3D animation with narration and captions. Repeating four steps. The CPU, the brain of a computer, carries out ins…</video:description><video:content_loc>https://3dcgvideo.com/demos/05_cpu.mp4</video:content_loc><video:duration>52</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/06_fiber</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/06_fiber/poster-6888b889bd.jpg</video:thumbnail_loc><video:title>How Optical Fiber Carries Signals</video:title><video:description>How Optical Fiber Carries Signals: a sample 3D animation with narration and captions. Carrying signals by total internal reflection. Optical fiber carries…</video:description><video:content_loc>https://3dcgvideo.com/demos/06_fiber.mp4</video:content_loc><video:duration>55</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/07_pid</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/07_pid/poster-90e6243155.jpg</video:thumbnail_loc><video:title>Balancing an Inverted Pendulum with Feedback Control (PID)</video:title><video:description>Balancing an Inverted Pendulum with Feedback Control (PID): a sample 3D animation with narration and captions. Keeping an inverted pendulum upright. Feedba…</video:description><video:content_loc>https://3dcgvideo.com/demos/07_pid.mp4</video:content_loc><video:duration>57</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/08_robotarm</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/08_robotarm/poster-c9526c51a0.jpg</video:thumbnail_loc><video:title>Robot Arm Joints and Motion</video:title><video:description>Robot Arm Joints and Motion: a sample 3D animation with narration and captions. Combining joint rotations to move the hand. Let&#x27;s see how a robot arm turns…</video:description><video:content_loc>https://3dcgvideo.com/demos/08_robotarm.mp4</video:content_loc><video:duration>52</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/09_suspension_bridge</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/09_suspension_bridge/poster-7c36734a80.jpg</video:thumbnail_loc><video:title>How Forces Flow in a Suspension Bridge</video:title><video:description>How Forces Flow in a Suspension Bridge: a sample 3D animation with narration and captions. The roles of cables, towers, and anchorages. The secret to how s…</video:description><video:content_loc>https://3dcgvideo.com/demos/09_suspension_bridge.mp4</video:content_loc><video:duration>60</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/10_seismic_isolation</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/10_seismic_isolation/poster-206217b9b2.jpg</video:thumbnail_loc><video:title>How Base Isolation Reduces Shaking</video:title><video:description>How Base Isolation Reduces Shaking: a sample 3D animation with narration and captions. Softening the shaking between building and ground. Base isolation is…</video:description><video:content_loc>https://3dcgvideo.com/demos/10_seismic_isolation.mp4</video:content_loc><video:duration>57</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/11_quenching</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/11_quenching/poster-9724fe071d.jpg</video:thumbnail_loc><video:title>Why Quenching Makes Steel Hard</video:title><video:description>Why Quenching Makes Steel Hard: a sample 3D animation with narration and captions. What happens when you heat it and cool it fast. The steel in blades and…</video:description><video:content_loc>https://3dcgvideo.com/demos/11_quenching.mp4</video:content_loc><video:duration>59</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/12_lift</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/12_lift/poster-fc1811a45b.jpg</video:thumbnail_loc><video:title>How a Wing Creates Lift</video:title><video:description>How a Wing Creates Lift: a sample 3D animation with narration and captions. Airflow and pressure differences. Airplanes can fly because their wings create…</video:description><video:content_loc>https://3dcgvideo.com/demos/12_lift.mp4</video:content_loc><video:duration>52</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/13_ev</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/13_ev/poster-ff9eb5b213.jpg</video:thumbnail_loc><video:title>The Electric Car Drive System (Battery, Inverter, Motor)</video:title><video:description>The Electric Car Drive System (Battery, Inverter, Motor): a sample 3D animation with narration and captions. Battery, inverter, and motor. An electric car…</video:description><video:content_loc>https://3dcgvideo.com/demos/13_ev.mp4</video:content_loc><video:duration>57</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/14_buoyancy</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/14_buoyancy/poster-b7cf91b4a5.jpg</video:thumbnail_loc><video:title>How a Ship Floats and Rights Itself (Buoyancy and Restoring Force)</video:title><video:description>How a Ship Floats and Rights Itself (Buoyancy and Restoring Force): a sample 3D animation with narration and captions. How a ship floats and comes back upr…</video:description><video:content_loc>https://3dcgvideo.com/demos/14_buoyancy.mp4</video:content_loc><video:duration>64</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/15_wind</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/15_wind/poster-6973651ee2.jpg</video:thumbnail_loc><video:title>How Wind Power Works (Blades, Gearbox, Generator)</video:title><video:description>How Wind Power Works (Blades, Gearbox, Generator): a sample 3D animation with narration and captions. Wind into rotation, rotation into electricity. Let&#x27;s…</video:description><video:content_loc>https://3dcgvideo.com/demos/15_wind.mp4</video:content_loc><video:duration>60</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/16_reactor</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/16_reactor/poster-41f6bc29b0.jpg</video:thumbnail_loc><video:title>Nuclear Fission and Control Rods in a Reactor</video:title><video:description>Nuclear Fission and Control Rods in a Reactor: a sample 3D animation with narration and captions. Controlling the chain reaction to extract heat. Let&#x27;s loo…</video:description><video:content_loc>https://3dcgvideo.com/demos/16_reactor.mp4</video:content_loc><video:duration>56</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/17_sewage</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/17_sewage/poster-1955f449b9.jpg</video:thumbnail_loc><video:title>How a Sewage Treatment Plant Cleans Water</video:title><video:description>How a Sewage Treatment Plant Cleans Water: a sample 3D animation with narration and captions. From dirty water to clean water. Let&#x27;s follow sewage from our…</video:description><video:content_loc>https://3dcgvideo.com/demos/17_sewage.mp4</video:content_loc><video:duration>55</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/18_distillation</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/18_distillation/poster-0930c41c8a.jpg</video:thumbnail_loc><video:title>How a Distillation Column Separates Components</video:title><video:description>How a Distillation Column Separates Components: a sample 3D animation with narration and captions. Separating liquid mixtures by boiling point. Distillatio…</video:description><video:content_loc>https://3dcgvideo.com/demos/18_distillation.mp4</video:content_loc><video:duration>61</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/19_mri</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/19_mri/poster-ad95f89f34.jpg</video:thumbnail_loc><video:title>How MRI Sees Inside the Body</video:title><video:description>How MRI Sees Inside the Body: a sample 3D animation with narration and captions. Hydrogen nuclei and radio waves show body slices. An MRI scanner uses a st…</video:description><video:content_loc>https://3dcgvideo.com/demos/19_mri.mp4</video:content_loc><video:duration>58</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/20_heatpump</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/20_heatpump/poster-90774cf945.jpg</video:thumbnail_loc><video:title>The Refrigeration Cycle of an Air Conditioner (Heat Pump)</video:title><video:description>The Refrigeration Cycle of an Air Conditioner (Heat Pump): a sample 3D animation with narration and captions. How a heat pump moves heat. An air conditione…</video:description><video:content_loc>https://3dcgvideo.com/demos/20_heatpump.mp4</video:content_loc><video:duration>58</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/21_pump</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/21_pump/poster-8371009f7e.jpg</video:thumbnail_loc><video:title>Fluid Engineering: How a Centrifugal Pump Moves Water</video:title><video:description>Fluid Engineering: How a Centrifugal Pump Moves Water: a sample 3D animation with narration and captions. A spinning impeller sends water high and far. Let…</video:description><video:content_loc>https://3dcgvideo.com/demos/21_pump.mp4</video:content_loc><video:duration>52</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/22_lens</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/22_lens/poster-d14e121a01.jpg</video:thumbnail_loc><video:title>Optics: How a Camera Lens Forms an Image</video:title><video:description>Optics: How a Camera Lens Forms an Image: a sample 3D animation with narration and captions. How light becomes an image inside a camera. Let&#x27;s see how a ca…</video:description><video:content_loc>https://3dcgvideo.com/demos/22_lens.mp4</video:content_loc><video:duration>60</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/23_kanban</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/23_kanban/poster-b23352451e.jpg</video:thumbnail_loc><video:title>Production Lines and the Kanban System</video:title><video:description>Production Lines and the Kanban System: a sample 3D animation with narration and captions. Pull production, where later steps pick up parts. The kanban sys…</video:description><video:content_loc>https://3dcgvideo.com/demos/23_kanban.mp4</video:content_loc><video:duration>60</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/24_chirality</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/24_chirality/poster-56f9d00ff3.jpg</video:thumbnail_loc><video:title>Molecular Shape and Mirror-Image Isomers</video:title><video:description>Molecular Shape and Mirror-Image Isomers: a sample 3D animation with narration and captions. The shape of a molecule and its mirror image. Molecules can ha…</video:description><video:content_loc>https://3dcgvideo.com/demos/24_chirality.mp4</video:content_loc><video:duration>60</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/25_crystal</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/25_crystal/poster-1d1bdd0037.jpg</video:thumbnail_loc><video:title>Crystal Structures (Table Salt and Diamond)</video:title><video:description>Crystal Structures (Table Salt and Diamond): a sample 3D animation with narration and captions. Table salt and diamond. Table salt and diamonds are crystal…</video:description><video:content_loc>https://3dcgvideo.com/demos/25_crystal.mp4</video:content_loc><video:duration>58</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/26_equilibrium</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/26_equilibrium/poster-3546fba93f.jpg</video:thumbnail_loc><video:title>Chemical Equilibrium and Le Chatelier&#x27;s Principle</video:title><video:description>Chemical Equilibrium and Le Chatelier&#x27;s Principle: a sample 3D animation with narration and captions. Le Chatelier&#x27;s principle. Chemical equilibrium and Le…</video:description><video:content_loc>https://3dcgvideo.com/demos/26_equilibrium.mp4</video:content_loc><video:duration>64</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/27_liion</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/27_liion/poster-971e50617b.jpg</video:thumbnail_loc><video:title>Charging and Discharging a Lithium-Ion Battery</video:title><video:description>Charging and Discharging a Lithium-Ion Battery: a sample 3D animation with narration and captions. How charging and discharging work. Lithium-ion batteries…</video:description><video:content_loc>https://3dcgvideo.com/demos/27_liion.mp4</video:content_loc><video:duration>63</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/28_polymer</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/28_polymer/poster-4940d6e5f8.jpg</video:thumbnail_loc><video:title>How Polymerization Makes Plastic</video:title><video:description>How Polymerization Makes Plastic: a sample 3D animation with narration and captions. Polymerization: small molecules → long chains. Plastics are made of po…</video:description><video:content_loc>https://3dcgvideo.com/demos/28_polymer.mp4</video:content_loc><video:duration>54</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/29_chromatography</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/29_chromatography/poster-af48ce1980.jpg</video:thumbnail_loc><video:title>Separating Mixtures with Chromatography</video:title><video:description>Separating Mixtures with Chromatography: a sample 3D animation with narration and captions. A way to separate mixed components. Chromatography is a way to…</video:description><video:content_loc>https://3dcgvideo.com/demos/29_chromatography.mp4</video:content_loc><video:duration>53</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/30_enzyme</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/30_enzyme/poster-028addfced.jpg</video:thumbnail_loc><video:title>How Enzymes Catch Their Substrates</video:title><video:description>How Enzymes Catch Their Substrates: a sample 3D animation with narration and captions. Catalysts at work in the body. Enzymes are catalysts that speed up c…</video:description><video:content_loc>https://3dcgvideo.com/demos/30_enzyme.mp4</video:content_loc><video:duration>54</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
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<url><loc>https://3dcgvideo.com/demos/34_induction</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/34_induction/poster-856b0f37bd.jpg</video:thumbnail_loc><video:title>Electromagnetism: Induction and Motors</video:title><video:description>Electromagnetism: Induction and Motors: a sample 3D animation with narration and captions. Magnets and coils make electricity and turn things. Generators t…</video:description><video:content_loc>https://3dcgvideo.com/demos/34_induction.mp4</video:content_loc><video:duration>62</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/35_carnot</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/35_carnot/poster-231c27f608.jpg</video:thumbnail_loc><video:title>Thermodynamics: The Heat Engine Cycle (Carnot Cycle)</video:title><video:description>Thermodynamics: The Heat Engine Cycle (Carnot Cycle): a sample 3D animation with narration and captions. An ideal heat engine that turns heat into work. Le…</video:description><video:content_loc>https://3dcgvideo.com/demos/35_carnot.mp4</video:content_loc><video:duration>57</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/36_doppler</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/36_doppler/poster-ecea9257c7.jpg</video:thumbnail_loc><video:title>How Sound Travels and the Doppler Effect</video:title><video:description>How Sound Travels and the Doppler Effect: a sample 3D animation with narration and captions. How sound travels, and why its pitch changes. Why does an ambu…</video:description><video:content_loc>https://3dcgvideo.com/demos/36_doppler.mp4</video:content_loc><video:duration>51</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/37_interference</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/37_interference/poster-52f441f3c1.jpg</video:thumbnail_loc><video:title>Optics: Refraction and Interference of Light</video:title><video:description>Optics: Refraction and Interference of Light: a sample 3D animation with narration and captions. Why light bends, and where colors come from. Let&#x27;s look at…</video:description><video:content_loc>https://3dcgvideo.com/demos/37_interference.mp4</video:content_loc><video:duration>59</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
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<url><loc>https://3dcgvideo.com/demos/39_time_dilation</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/39_time_dilation/poster-578a8e4451.jpg</video:thumbnail_loc><video:title>Relativity: Why Moving Clocks Run Slow</video:title><video:description>Relativity: Why Moving Clocks Run Slow: a sample 3D animation with narration and captions. Relativity and the light clock. Let&#x27;s use a light clock to see w…</video:description><video:content_loc>https://3dcgvideo.com/demos/39_time_dilation.mp4</video:content_loc><video:duration>61</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/40_quarks</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/40_quarks/poster-15e9d1019b.jpg</video:thumbnail_loc><video:title>Nuclear &amp; Particle Physics: Inside the Atom</video:title><video:description>Nuclear &amp; Particle Physics: Inside the Atom: a sample 3D animation with narration and captions. Nucleus, protons, neutrons and quarks. Let&#x27;s zoom in and lo…</video:description><video:content_loc>https://3dcgvideo.com/demos/40_quarks.mp4</video:content_loc><video:duration>60</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/41_superconductivity</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/41_superconductivity/poster-488dbc914e.jpg</video:thumbnail_loc><video:title>Condensed Matter Physics: Superconductivity and the Meissner Effect</video:title><video:description>Condensed Matter Physics: Superconductivity and the Meissner Effect: a sample 3D animation with narration and captions. Cool it, and electrical resistance…</video:description><video:content_loc>https://3dcgvideo.com/demos/41_superconductivity.mp4</video:content_loc><video:duration>64</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/42_bernoulli</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/42_bernoulli/poster-16c3a24266.jpg</video:thumbnail_loc><video:title>Fluid Dynamics: Bernoulli&#x27;s Principle</video:title><video:description>Fluid Dynamics: Bernoulli&#x27;s Principle: a sample 3D animation with narration and captions. Where flow is faster, pressure is lower. In flowing water or air…</video:description><video:content_loc>https://3dcgvideo.com/demos/42_bernoulli.mp4</video:content_loc><video:duration>50</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/43_stars</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/43_stars/poster-d77f441f8c.jpg</video:thumbnail_loc><video:title>Astrophysics: The Life of a Star</video:title><video:description>Astrophysics: The Life of a Star: a sample 3D animation with narration and captions. How stars are born, shine, and die. Let&#x27;s follow the life of a star, f…</video:description><video:content_loc>https://3dcgvideo.com/demos/43_stars.mp4</video:content_loc><video:duration>64</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
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<url><loc>https://3dcgvideo.com/demos/47_hr_cycle</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/47_hr_cycle/poster-8cc857466c.jpg</video:thumbnail_loc><video:title>The HR Cycle: From Hiring to Development</video:title><video:description>The HR Cycle: From Hiring to Development: a sample 3D animation with narration and captions. Five HR steps and the cycle. HR work is a single cycle that li…</video:description><video:content_loc>https://3dcgvideo.com/demos/47_hr_cycle.mp4</video:content_loc><video:duration>57</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/50_turbofan</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/50_turbofan/poster-473d4e9144.jpg</video:thumbnail_loc><video:title>How a Jet Engine (Turbofan) Moves Forward by Pushing Air</video:title><video:description>How a Jet Engine (Turbofan) Moves Forward by Pushing Air: a sample 3D animation with narration and captions. How a turbofan moves forward by pushing air. T…</video:description><video:content_loc>https://3dcgvideo.com/demos/50_turbofan.mp4</video:content_loc><video:duration>59</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
<url><loc>https://3dcgvideo.com/demos/51_purifier</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/51_purifier/poster-90e8588d72.jpg</video:thumbnail_loc><video:title>Product Showcase: AP-7 Air Purifier (Fictional Product Sample)</video:title><video:description>Product Showcase: AP-7 Air Purifier (Fictional Product Sample): a sample 3D animation with narration and captions. Fresh, clean air for your room. Make the…</video:description><video:content_loc>https://3dcgvideo.com/demos/51_purifier.mp4</video:content_loc><video:duration>61</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
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<url><loc>https://3dcgvideo.com/demos/53_homebattery</loc><lastmod>2026-11-07T18:08:32+09:00</lastmod><video:video><video:thumbnail_loc>https://3dcgvideo.com/static/demos_en/53_homebattery/poster-12df5bbc26.jpg</video:thumbnail_loc><video:title>HB-3 Home Battery (Fictional Product Showcase Sample)</video:title><video:description>HB-3 Home Battery (Fictional Product Showcase Sample): a sample 3D animation with narration and captions. Store by day, use at night. Introducing a home ba…</video:description><video:content_loc>https://3dcgvideo.com/demos/53_homebattery.mp4</video:content_loc><video:duration>58</video:duration><video:publication_date>2026-11-07T09:00:00+09:00</video:publication_date><video:family_friendly>yes</video:family_friendly></video:video></url>
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