Kjzqxyx 12" Large Unidirectional Flow Fluid Hourglass, 7-Level Channel Flow Demonstrator, Forward/Reverse,Anti-Backflow,Physics Desk Toy
KJZQXYX
Unidirectional Flow】: Contrasts forward smooth laminar flow with reverse backflow. Forward orientation allows beads to pass with low resistance. Reversal triggers turbulence, instantly demonstrating one-way flow restriction 7 Level Channels】: Features seven V-shaped funnel units at a 137.5° angle. This sequence enables effortless forward flow while generating cascading turbulence in reverse, serving as a passive fluid regulation valve STEM Learning Aid】: Ideal for physics lessons on a lab desk. Visualizes diffusion, laminar-to-turbulent transitions, and mass transfer, turning abstract theories into an observable, tactile learning tool Precision Craftsmanship】: High-clarity, anti-static ABS frame offers a fully unobstructed view. Precision-grade beads move smoothly, allowing clear observation without glare or static interference Service: We place great emphasis on our customers' shopping experience! If you have any questions, please feel free to contact us, and we will respond to you within 24 hours.
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