Pulleys are simple machines. A knowledge of pulleys can be very useful. This short video shows how to use a pulley to increase the pulling power of a winch. Supports the Force, Work and Energy component of any science curriculum.
Just updated your iPhone to iOS 18? You'll find a ton of hot new features for some of your most-used Apple apps. Dive in and see for yourself:
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Make a Monster Dry Ice Bubble
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Make Slime Without Borax:
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How To:
Build a Simple Paper Bridge as a Science Experiment
How To:
Make Water Freeze into Ice Instantaneously
How To:
Determine the empirical and molecular formulas for a compound in chemistry
How To:
Make Ammonium Nitrate with NaHSO4 and Nitrate Salt
How To:
Instant Ice! How to Waterbend in Real Life
How To:
Create napalm
How To:
Make DIY Nitrogen Triiodide from ammonia & water purification iodine crystals
How To:
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How To:
Make a Crazy Foam Explosion Science Experiment
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How To:
Make a Paper Plate Speaker That Actually Works for Under $1
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How To:
Measure the volume of a balloon
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