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The Wheel That Lifts Boats

Scotland's Falkirk Wheel carries boats between waterways in two water-filled chambers. One rises as the other falls. But why doesn't a boat upset the balance? A floating boat displaces its own weight in water. As it enters an open chamber, that much water moves out into the canal. With water levels ...

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Cricut cutting machines in 2026: Joy Xtra, Explore 5 or Maker 5?

Cricut cutting machines in 2026: Joy Xtra, Explore 5 or Maker 5? Choose for the projects you will make repeatedly, with the bundle contents and extra tools in view. Buying guide · Researched September 27, 2026. Prices, where shown, are USD before tax and delivery; stock and regional availability var...

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Why This Rhubarb Grows in Darkness

In Yorkshire, some rhubarb grows in dark sheds, then is traditionally harvested by candlelight. Darkness isn't its fuel. The secret is underground. For two to three years outdoors, its leaves use sunlight to build food reserves in the roots. After winter chilling, the crowns move into warm sheds wit...

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Extract the main video clips

[00:53] The Forgotten 1798 Origin of the US Public Health Service [03:09] A 1930s Surgeon General on Preventing National Epidemics [05:07] How Modern Transportation Accelerated Contagion [06:41] Quarantine Officers Intercepting Ships at Sea [14:19] How Airlines Quarantined Yellow Fever in the 1930s ...

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Create original eco-tech art showing a public installation of tall glass reeds whose changing arrangement casts shifting coloured patterns as the wind passes. Present it as an imagined artwork, not a working engineering proposal. Include the short label “Original artwork” once.

An imagined public artwork: tall glass reeds shift their arrangement as the wind passes, casting moving colours across the ground and nearby surfaces. /media/ai_images/26803fdb-537d-4f4a-b855-8d2958eb01b4.png...

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Extract the main video clips

[04:08] Striking Oil from a Golf Bunker [05:53] Teeing Up on Giant Stilts [07:01] The Best Golf Course Divot Ever Tasted [07:30] The Worst Golf Lesson in History [10:43] The $10,000 Golf Bet Escalation [13:24] You Cannot Hit Them From Memory [14:03] Playing From the Water Hazard [14:51] The Mystery ...

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The Planet Where Sunrise Reverses

From certain places on Mercury, the Sun can rise, sink below the horizon, then rise again. The trick is a slow spin and an oval-shaped orbit. Mercury turns once in about fifty-nine Earth days, while a trip around the Sun takes about eighty-eight. Near its closest approach, Mercury sweeps around the ...

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Extract the main video clips

[00:54.000] The Flagpole Base of USS Arizona [02:25.500] Preserved Teak Wood Beneath Pearl Harbor [03:44] Where Pearl Harbor Survivors Return to Rest [06:43] Galley Tiles from December 7, 1941 [08:13] The Forgotten 14-Inch Cannons Underwater [09:56] Touching the Bow of the USS Arizona...

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The Fish That Sees Through Its Own Head

Those two dark spots above its mouth look like eyes, but they actually detect smells. The real eyes are the green shapes inside that clear, fluid-filled dome. They point upward, spotting faint silhouettes of food against the light from above. But when the fish feeds, its eyes rotate forward, keeping...

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