Food Chains - by StudyJams
A food chain is made up of three groups: producers, consumers, and decomposers. They interact with each other in an ecosystem to get the energy they need. Learn more about food chains with this cartoon animation from StudyJams. A short, self-checking quiz is also included with this link.
Public Speaking with Confidence ( Sean McArdle, Part 1)
This professionally-made video features Sean McArdle, a master motivator and speaker, explaining the importance/benefits of practicing a speech before actually presenting it. He recommends practicing in a safe spot, such as in front of a mirror, to develop confidence and relieve nervousness. ( 1:32)
Feedstock mixture of Al and Ti powder for cold gas dynamic spray (CGDS) CORE-Materials posted a photo: Cold gas dynamic spray, CGDS (or kinetic spray) is a rapidl
CORE-Materials posted a photo:
Cold gas dynamic spray, CGDS (or kinetic spray) is a rapidl
Cold Gas Dynamic Spray (CGDS): formation of Ti-Al intermetallics CORE-Materials posted a photo: Cold gas dynamic spray, CGDS (or kinetic spray) is a rapidly developing c
CORE-Materials posted a photo:
Cold gas dynamic spray, CGDS (or kinetic spray) is a rapidly developing c
Photonic Dipole Contours of Ferrofluid Hele-Shaw Cell (Off Axis Lighting)
This investigation describes and demonstrates a novel technique for the visualization of magnetic fields. Two ferrofluid Hele-Shaw cells have been constructed to facilitate the imaging of magnetic field lines. We deduce that magnetically induced photonic band gap arrays similar to electrostatic liquid crystal operation are responsible for the photographed images and seek to mathematically prove the images are of exact dipole nature. This is off axis lighting version, per figure 9 of the paper. h
Kepler - A Search for Habitable Planets
The Kepler Mission is part of NASA's Discovery Program, a series of lower-cost, highly focused planetary science investigations designed to enhance understanding of the solar system. This webpage describes how Kepler, scheduled for launch in 2006, will use a unique spaceborne telescope specifically designed to search for Earth-like planets around stars beyond our solar system. It will look for the "transit" signature of planets. A transit occurs each time a planet crosses the line-of-sight betwe
Moby, Legacy Apps and the Semantic Web
Presentation given at the Web Services Biohackathon '08 in Tokyo, Japan 2008-02-11. It describes tools for using and providing interoperable bioinformatics Web services. This presentation followed another one outlining the (Bio)Moby protocol and its usage, see www.biomoby.org for more information. Presenter: Paul Gordon. [Note: poor video quality lasts only for the first 30 seconds]
Record of Time
Enter the exciting world of dating ... fossil dating, that is. From Record of Time by anthropologist Dennis O'Neil.
Goldstone Apple Valley Radio Telescope
This is a fact sheet describing the GAVRT program. This educational program uses a 34-meter antenna for classroom radio astronomy observations via the Internet The GAVRT Project introduces students in grades elementary through high school to the process of science with the goal of improving science literacy among American students.
Discovering Yardsticks are Metersticks
This lesson uses a simple discrepant event to demonstrate the underlying cause for early miscalculation of the size of the Milky Way galaxy. Grades 9-12.
Speech exercise: Prendre drawer voiture ou train le?
Using a map, you will give your friend directions on the route to take when he is coming to visit you during your vacation.
Learn with Pictures and Video S4 #18 - Japanese Expressions That Help with the Housework 2
Having your own place in Japan has been amazing! You have so much freedom, and it’s quiet when you need peace to study Japanese. The worst thing about having your own place is keeping it nice and tidy. Deciding that a little clutter doesn’t interrupt your Japanese practice, you’ve put the dusting and the dishes [...]
Economic Update on WBAI 99.5FM April 23rd - Guest Costas Panayotakis
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Black holes are formed when extremely large star dies. When a star dies, it first expands, then contracts. Large stars contract until their atoms collapse, pulling the electrons into the nucleus. The immense strength of the gravitational force of a black hole pulls all nearby matter in, even light (which has mass). (02:28)
Soccer Move - The Jing
Soccer Coach Mike Hefron demonstrates a simple but very effective beat-the-man move called "The Jing" for changing direction on the field and getting past an aggressive opponent . ( 2:27)
Using Nature to Grow Batteries
Inspired by an abalone shell, Angela Belcher programs viruses to make elegant nanoscale structures that humans can use. Selecting for high-performing genes through directed evolution, she's produced viruses that can construct powerful new batteries, clean hydrogen fuels and record-breaking solar cells. At TEDxCaltech, she shows us how it's done. (10:26)
Develop Inquiring Minds: Classroom Tour-Curriculum Integration through Centers
This classroom environment helps to create a strong community of independent learners. Students are engaged in inquiry about the moon. They delve deeply into areas of personal interest and are excited about the new knowledge they are building. This teacher walks us through her room and shows us how she has integrated the curriculum into all areas of her classroom environment. They are currently studying the moon and they have integrated this into the math, writing, science centers
How to Divide Polynomials
The instructor uses a small whiteboard in this short two-and-a-half-minute tutorial to demonstrate how to divide polynomials. He just uses one problem for demonstration. The video goes step-by-step and is easy to understand.
How to Find the Surface Area of a Triangular Prism
Looking for an informative video on how to get the surface area of a triangular prism? This useful tutorial explains exactly how it's done in four minutes. The instructor uses a small whiteboard for demonstration.
ISS Update - May 12, 2011
The International Space Station video update for May 12, 2011.