Mitochondrial DNA from Lumbriculus variegatus: Isolation and Restriction Digest Analysis
In this activity, mitochondria are isolated from the California blackworm, Lumbriculus variegatus, by homogenization and differential centrifugation. A modified plasmid miniprep procedure (alkaline lysis) is then used to isolate DNA from these mitochondria. Single and double enzyme restriction digests of mitochondrial DNA (mtDNA) are analyzed by agarose gel electrophoresis. Sizes of mtDNA restriction fragments are estimated from gel results and are used to determine the total size of the L. vari
Virtual Maths, Shapes, Space and Measure, Demonstration of a Theodolite Survey in action
Using a theodolite to calculate the height of a building, demonstration 'in the field', includes interactive simulation tools and formulae
Militants force girl to wear suicide vest
June 20 - An 8-year-old Pakistani schoolgirl, kidnapped from Peshawar by militants, says her abductors tried to force her wear a suicide vest and attack security forces. (Rough cut - no reporter narration)
Les vacances en France - Quiz
Students can test themselves on travel, tourism and holidays in France.
Social Work Social Media App for Android
'This app offers you an amazing way to explore and learn about some of the ethical issues of using social media in social work. In the app you will meet a Team Manager called Adrian, he will present some ethical dilemmas around social media use. Can you help Adrian make the right decisions to ensure his team’s practices are consistent with social work ethics and values?Based on the issues raised, you are encouraged to reflect on your decisions and consider the potential impact these may have o
20.320 Biomolecular Kinetics and Cell Dynamics (MIT)
This class covers analysis of kinetics and dynamics of molecular and cellular processes across a hierarchy of scales, including intracellular, extracellular, and cell population levels; a spectrum of biotechnology applications are also taken into consideration. Topics include gene regulation networks; nucleic acid hybridization; signal transduction pathways; and cell populations in tissues and bioreactors. Emphasis is placed on experimental methods, quantitative analysis, and computational model
ABC RAP Learning Video
This video is really fun for children to learn their ABC's.
How to Write Bubble Letters
In this clip learn how to make bubble letters. The craftswoman shows how to write rounded like bubbles, squared-off shape letters, or in a block shape. Stylize bubble letters can be use for a decorative touch.
How to Make a Book for Younger Children
A two minute video on how younger children can write, draw, and decorate a homemade book. Very easy to follow.
How to Make a Christmas Bow
This is a six-minute video that explains how to make a holiday bow for a tree.
Let's Be Green when We Clean
This three minute musical video shows students how to conserve water, paper towels and recycle scraps while cleaning up the art room. Easy to follow with catchy music
SEM image of open cell polyurethane foam
If a gas is injected into a liquid it forms a cellular foam structure. When a thermoset prepolymer of low viscosity is foamed, the polymer can drain from the cell walls (driven by surface tension) before it sets at the cell edges, leaving an open-celled foam. The cell edges have three concave sides, giving rise to the tri-cuspid cross section visible at the bottom of this image. The average co-ordination number for the nodes (where struts meet) is four, giving tetrahedral junctions.
Sneak preview of 'A Tribute to the Dream' performance
Kwesi Abakah, a forward on the Northeastern University men's basketball team, practices "Feeling Good" with student a cappella group Distilled Harmony ahead of the special event, "50 Years Forward: A Tribute to the Dream," taking place on campus Thursday, Jan. 16, 2014. In celebration of the 50th anniversary of the landmark Civil Rights Act, Northeastern University has organized the yearlong series commemorating civil rights efforts in America and around the globe.
Light Bulb Subtraction - Sesame Street
This short, animated video uses light bulbs to demonstrate subtraction. Light bulbs are taken away one at a time until none are left.
Cultural Anthropology is a social science that explores how people understand and act in their world. But what, exactly, is it that Cultural Anthropologists do? How do they approach their research? In this short film, three members of MIT's Anthropology Department; Stefan Helmreich, Erica James, and Heather Paxson, talk about their current work and the process of doing fieldwork. (08:14)
7.342 Cancer Biology: From Basic Research to the Clinic (MIT)
This course is one of many Advanced Undergraduate Seminars offered by the Biology Department at MIT. These seminars are tailored for students with an interest in using primary research literature to discuss and learn about current biological research in a highly interactive setting. In 1971, President Nixon declared the "War on Cancer," but after three decades the war is still raging. How much progress have we made toward winning the war and what are we doing to improve the f
Dr. Loopy's Blinding you with Science #5: Magnetism and electromagnets
This is #5 in the series of Blinding you with Science videos was produced to help elementary students with sceince concepts. In this episode Dr. Loopy and his friends look at how magnets work and do experiments with magnetism.
Understanding Logical Statements, Part 3 of 5 - Khan Academy
"Determine whether the statement is always, sometimes, or never true, and explain why." Sal Khan takes a mathematical statement and helps the viewer make sense out it. Mr. Khan uses software (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. (03:12)
Antique Silk Factory in Florence Italy
An informative narration takes us to Florence, Italy where 19th century looms make some of the finest silks in the world. Visit a florentine factory where a hand loom dating back to 1780 is still used and every thread is woven by hand. See how artisans create silk the way it has been done for centuries.