Curated Video
How Planetary Rings Pull You In: Gravitational Force & Speed Explained
New ReviewExplore how the gravitational force and potential energy behave along the central axis of a planet’s ring system. Learn how symmetry simplifies the math and how energy conservation reveals the particle’s speed through the ring’s center.
Curated Video
What's the Truth Regarding The Secret?
Howcast - Learn the truth about the bestselling book The Secret from life coach Stephanie Florman in this Howcast video.
Curated Video
How to Tell if Someone Is Attracted to You by Their Eyes
Howcast - Learn how to tell if someone is attracted to you by looking at their eyes in this Howcast video about body language.
Curated Video
How to Tell if Someone Is NOT Attracted to You
Howcast - Learn how to tell if someone is not sexually attracted to you in this body language video from Howcast.
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Body Language & Sexual Attraction
Howcast - Learn how sexual attraction is conveyed through body language in this Howcast video.
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Top 6 Neighborhoods to Visit in Singapore
Howcast - Learn about the top six neighborhoods to visit on a trip to Singapore in this Howcast travel video.
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What Sexual Feelings Do Girls Experience during Puberty?
Howcast - Learn about the sexual feelings girls experience during puberty, and whether masturbation is normal, from Jennifer Wider, M.D. in this Howcast video.
Curated Video
How to Open a Bar
Forget the froufrou drinks and quiet atmosphere -- cheap beer and loyal patrons are what make dive bars the place to be.
Curated Video
Come on the Journey With These Elephants as They Explore Their New Pool
Get a look at the San Diego Zoo's newest attraction, Elephant Odyssey.
Curated Video
Lattice Energy Made Easy!
Discover the truth about lattice energy and why size really matters in ionic bonds. In this video, you'll learn what lattice energy is, why it's crucial in chemistry, and the factors that influence its strength. Understand how the size...
The Business Professor
Attraction Selection Attrition Model
What is the Attraction - Selection - Attrition Model? The theory explains that similar people are selected and attracted by organizations, while dissimilar people are likely to leave these organizations due to attrition
Curated Video
Landmarks - Grand Canyon
IN ONE PANORAMIC SWEEP YOU CAN SEE NEARLY HALF OF THE EARTH'S 4.6 BILLION-YEAR HISTORY. EROSION HAS EXPOSED ROCK STRATA RANGING FROM THE 1.7-BILLION-YEAR OLD VISHNU SCHIST OF THE INNER GORGE, TO THE PALE KAIBAB LIMESTONE DEPOSITED 250...
Curated Video
Landmarks - The Spinnaker Tower
THE SPINNAKER TOWER THE SPINNAKER TOWER DOMINATES THE SKYLINE ABOVE THE ANCIENT PORT CITY OF PORTSMOUTH IN THE SOUTH OF ENGLAND. THE BUILDING WHICH OPENED IN 2005 IS A REMARKABLE COMBINATION OF ARTISTRY, ARCHITECTURE AND ENGINEERING.
Curated Video
Exploring Washington DC on a Segway: A Fun and Efficient Way to See the Sights
Experience the sights of Washington DC like never before with the Segway Human transporter. Glide effortlessly through the city at up to 12 kilometers per hour on this two-wheeled, self-balancing electric vehicle. With its innovative...
Curated Video
Molecular Matters Polar and Non-Polar Solids
Molecular Matters: Polar and Non-Polar Solids Polar molecular solids are crystalline solids with a permanent dipole moment due to differences in electronegativity between atoms. These solids have strong dipole-dipole interactions, lower...
Curated Video
Electron Energy: Deriving the Expression
Bohr's model of the atom says that an electron's energy is set by its orbit around the nucleus. Bohr said that electrons have specific, quantised levels of energy, and that the size of the orbit affects the energy level. An electron's...
Curated Video
Atomic Orbits: Calculating the Radius
Bohr's atomic model postulates that the radius of an electron's orbit around the nucleus is determined by the concept that electrons travel in quantised orbits with distinct and well-defined radii. According to the model, the angular...
Curated Video
Cohesion - The Running Water Experiment
Using “cohesion,” Dr. Boyd shows you how you can make water run along a piece of string.
0:00 – Introduction
0:24 – What you need
0:45 – Explanation of cohesion
1:09 – Safety
1:25 – Cohesion Experiment 1
3:35 – Experiment 2...
Science ABC
Why Can't We Resist Burgers, Chips, Fries, and Other Junk Food?
We crave unhealthy foods because they contain lots of sugar and artificial additives, which taste delicious, and therefore trigger the release of certain pleasure-inducing neurotransmitters. Furthermore, we are evolutionarily programmed...
Curated Video
Electrostatic attraction
The attraction between two bodies with opposite electric charges due to the charge alone. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Van der Waals Force
A type of intermolecular force that causes attraction between molecules. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Metallic bond
A metallic bond is the attractive force that exists between positively charged ions and the 'sea' of negative electrons in a metal element. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
Gravity - Attractive Force of Mass
An attractive force that acts between all matter that has mass, and is proportional to mass. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Ionic compound
A chemical compound typically formed from metal and non-metal elements combining. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...