Designing a sundial for the top of the earth, the North Pole, is easy. Move to another latitude and it becomes more difficult. This video looks at the issues around sundials and latitudes.
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:
Make Slime Without Borax:
5 Easy Recipes for Gooey Homemade Ooze
How To:
The Best Investigatory Projects in Science: 16 Fun & Easy Ideas to Kickstart Your Project
How To:
Make This Amazing 9-Layer Density Tower from Things Found in Your Kitchen
How To:
Extract DNA from a Strawberry with Basic Kitchen Items
How To:
Isolate the sugar in a can of soda
How To:
Make Soap Out of Guava Leaf Extract for a Science Investigatory Project
How To:
Make DIY Nitrogen Triiodide from ammonia & water purification iodine crystals
How To:
Build a Simple Paper Bridge as a Science Experiment
Classic Chemistry:
Colorize Colorless Liquids with "Black" Magic, AKA the Iodine Clock Reaction
How To:
Make a Monster Dry Ice Bubble
How To:
Make fire 4 ways without matches by using chemistry
How To:
Make Water Freeze into Ice Instantaneously
How To:
Make Your Own Homemade Glow Sticks
How To:
DIY Ninja Turtle Ooze! Make Your Own Radioactive Canister of Glowing Green Slime at Home
How To:
Observe the Full Moons in 2011 (Lunar Calendar)
How To:
There's Metal Hiding in Your Pepto-Bismol and Here's How You Extract It
How To:
Draw the Lewis structure for ammonia
How To:
Determine volume measurement
How To:
Create a small explosion with calcium carbide
How To:
Make green fire from household materials
How To:
The Best Investigatory Projects in Science: 16 Fun & Easy Ideas to Kickstart Your Project
How To:
Make This Amazing 9-Layer Density Tower from Things Found in Your Kitchen
How To:
Extract DNA from a Strawberry with Basic Kitchen Items
How To:
Isolate the sugar in a can of soda
How To:
Make Soap Out of Guava Leaf Extract for a Science Investigatory Project
How To:
Make DIY Nitrogen Triiodide from ammonia & water purification iodine crystals
How To:
Make a Monster Dry Ice Bubble
Classic Chemistry:
Colorize Colorless Liquids with "Black" Magic, AKA the Iodine Clock Reaction
How To:
Build a Simple Paper Bridge as a Science Experiment
How To:
Make Water Freeze into Ice Instantaneously
How To:
Make fire 4 ways without matches by using chemistry
How To:
Make Your Own Homemade Glow Sticks
How To:
DIY Ninja Turtle Ooze! Make Your Own Radioactive Canister of Glowing Green Slime at Home
How To:
Observe the Full Moons in 2011 (Lunar Calendar)
How To:
There's Metal Hiding in Your Pepto-Bismol and Here's How You Extract It
How To:
Create a small explosion with calcium carbide
How To:
Draw the Lewis structure for ammonia
How To:
Determine volume measurement
How To:
Turn Just Half of a Purple Liquid Clear with the Photochemical "Two-Faced" Reaction
How To:
Discover the Hidden Colors in Everyday Objects with This DIY Video Spectrometer
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