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How to Use Kinect Gestures
Howcast -Learn how to use Kinect gestures in this Kinect for Xbox video from Howcast.
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How to Grind on In-Line Skates
Howcast -Learn how to grind on rollerblades from in-line skater Tim Phang in this Howcast video.
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How to Do a Fast Slide on In-Line Skates
Howcast -Learn how to do a fast slide on rollerblades from in-line skater Tim Phang in this Howcast video.
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How to Do the Top-of-Fist Vanish Magic Trick
Howcast -Learn how to do the top-of-fist vanish trick from magician Michael Patrick in this Howcast magic tricks video.
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When to Use "Who" vs. "Whom"
Howcast -Learn when to use "who" versus "whom" from Gotham Writers' Workshop instructor Stephanie Paterik in this Howcast grammar video.
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How to Pack for College
People talk about packing for college as though it were a major life event, like getting married. It's not. Here are some tips on how to put objects in boxes.
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How to Take Pictures in Shadow
Frustrated by tricky shadows and softer light? These steps make shooting in the shade a breeze.
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How to Deal with a Foreign Object in the Eye
Having a small foreign object in the eye is not life threatening, though it can cause an immense amount of discomfort. Follow these steps to flush the eye clear.
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How to Play Hot and Cold
Played indoors or out, this game helps children refine their listening skills and learn the idea of opposites.
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How to Carve Wood
A skill that was essential to the survival of early humans, wood carving affords pleasure to many craftspeople
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How to Line Draw
"Less is more" is the idea behind line drawing. Create compelling images with this popular technique.
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How to Play Road-Trip Games
Banish the all-too-familiar whine of "Are we there yet?" by keeping everyone in the car, young and old, occupied with these fun road-trip games.
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How to Calculate Relative Error
When you make a measurement, it is important to know how accurate it is. Use relative error to express accuracy as a relative quantity.
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How to Identify Gold
The only way to know for certain that an object is made of gold is to have it analyzed. But a few do-it-yourself tests can provide enough information to make an educated guess.
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How to Calculate Velocity
Understanding how velocity is calculated is essential if you are to grasp the laws of physics. Learn the calculations necessary to figure it out.
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DIY SCI - THE LAW OF INERTIA PART 2
DIY SCI host Steve Spangler demonstrates the second part of the law of inertia, the tendency of an object to stay in motion until a force acts upon it.
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One of the Greatest Mysteries of Humanity - The Holy Grail
One of the Greatest Mysteries of Humanity - The Holy Grail
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Triple System Of 'icy Space Rocks' May Have Been Found In Kuiper Belt For 2nd Time
The Keck Observatory and NASA’s Hubble Space Telescope may have uncovered a "potential three-body system in the Kuiper Belt," according to NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight CenterCredit: NASA's...
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Planets, Lyrid Meteors, The Moon And More In April 2025 Skywatching
Jupiter and the crescent moon start off and end the month together. Find out where to see Mars and Venus as well. The Lyrid Meteor Shower peaks on the night of April 21-22. Amazing globular cluster M3 is also available for skywatchers...
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Earth's First Planetary Defense
Earth is hit by asteroids all the time, but to avoid severe damages in the future NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to protect us. Credit: NASA/Johns Hopkins APL
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Optical Illusion: The Ambiguous Cylinder
The Ambiguous Cylinder optical illusion features a shape that appears as either circular or square depending on the viewing angle, challenging perception and perspective.
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Why if you throw your head up, does the reflection do the same, and not put your head down?
The reflection in a mirror mimics your movements because it shows a direct reversal of your actions, not an independent response—so when you throw your head up, it reflects the same upward motion.
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What If a Marshmallow Hit the Earth at the Speed of Light?
What happens when a fluffy marshmallow collides with Earth at light speed? Prepare for an explosive journey into science and chaos!