Vocales Que Son Cinco
Canción infantil para aprender las vocales. (02:56)
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Beginning Cursive Handwriting
Video for cursive handwriting practice. It shows how to join letters in writing . This video does not have sound. Writing is shown on a whiteboard. (04:23)
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4.3 The UK's coal reserves

Production of large quantities of coal in the UK during the 19th and 20th centuries led to the progressive depletion of reserves. In 2005 underground mining was limited to the Carboniferous coalfields of Yorkshire and the East Midlands, with only one underground mine operating in South Wales. However, surface mining sites still work coal in most of the coalfields (Author(s): The Open University

High magnification 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, and some remnants of collapsed cell walls can be seen at the cell edges.
Author(s): DoITPoMS, University of Cambridge,J A Curran, Depa

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Cleaning a Personal Computer Keyboard
Learn from our expert some great techniques for cleaning your computer keyboard.
 
You need some electronic wipes, a can of air and a toothbrush to clean the keyboard.  This video takes you through the steps to be able to clean out your keyboard.

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1.2 Balanced energy intake

There is a need for a certain daily energy intake to allow metabolism to occur in the body. Metabolism means all the chemical reactions occurring in the body and there are two types of process involved: catabolism breaks down larger molecules into smaller ones often with energy release and anabolism is the building up of larger molecules from smaller precursors, often requiring energy. The body requires energy to power anabolic, mechanical (for example, muscle contraction
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3.1 Overview

Scattering calculations using wave packets are so laborious that they are generally done numerically, using a computer. However, in many cases, scattering phenomena can be adequately treated using a procedure based on stationary states. This approach can give valuable insight into the scattering process without the need for computer simulations.

Session 3 introduces the stationary-state approach to scattering. The discussion is mainly confined to one dimension, so a stationary-state sol
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2.6 The surface

David A. Rothery Teach Yourself Planets, Chapter 6, pp. 66-75, Hodder Education, 2000, 2003.

Copyright © David Rothery

Look at the Moon even with the unaided eye, and you will see that it has dark patches on a paler background (Figure 2). This simple observation picks out the two distinct types of crust on the Moon. The paler areas are the lunar highlands, and the darker areas are the lunar 'seas' or maria (singular: mare). Both the highlands an
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Jonathan Metzl examines how hot-button political issues impact health
Professor Jonathan Metzl isn’t afraid to tackle society’s most controversial issues, like guns, mass shootings, health care, race, politics and mental illness.
Author(s): Amy Wolf

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HST.721 The Peripheral Auditory System (MIT)
In this course, experimental approaches to the study of hearing and deafness are presented through lectures, laboratory exercises and discussions of the primary literature on the auditory periphery. Topics include inner-ear development, functional anatomy of the inner ear, cochlear mechanics and micromechanics, mechano-electric transduction by hair cells, outer hair cells' electromotility and the cochlear amplifier, otoacoustic emissions, synaptic transmission, stimulus coding in auditory nerve
Author(s): Liberman, Charlie,Adams, Joe C.

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THE100 Television, Film & Theater Spring 2015 Session #08
with Naomi Buckley Appreciation of the performing arts of television, film and live theater through the viewing of films. www.YouTube.com/csuDHTV [Please Subscribe]
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4 Locating high-enthalpy geothermal fields

The search for potentially useful geothermal fields focuses initially on locating rocks that have been chemically altered by natural geothermal fluids, as well as looking for obvious surface features of geothermal activity such as geysers and hot springs. Measurements of fluid flow through the field allow estimation of its likely economic potential.

When a promising resource has been located exploration wells are drilled. However, given the high pressures and temperatures typical of a g
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2.5 Surface mining

In surface mining (sometimes called 'opencast' mining in the UK), the coal seam is accessed by removing the rock overburden; a process that benefits from economies of scale by using some of the world's largest machines (Figure 15).

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The Gold Of The Andes
This video clip is a short film about a journey to source one of the most luxurious materials in the world. The Incas believed the Vicuña animals were  rewarded with a coat of pure gold in return for giving life to their civilization. They called it “The Gold Of The Andes”. (07:17)
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8.4 Fragile X syndrome

Fragile X syndrome is the final example of a genetic disease considered here.

Activity 21

What does the term ‘genetic disease’ mean?

Answer
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Energy resources: Wave energy
The energy carried by ocean waves derives from a proportion of the wind energy transferred to the ocean surface by frictional drag. So, ultimately it stems from the proportion of incoming solar energy that drives air movement. Just how much energy is carried by a single wave depends on the wind speed and the area of ocean surface that it crosses; wave height, wavelength, and therefore wave energy, are functions of the distance or fetch over which the wind blows. This free course, Energy resourc
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2.797J Molecular, Cellular, and Tissue Biomechanics (MIT)
This course develops and applies scaling laws and the methods of continuum mechanics to biomechanical phenomena over a range of length scales. Topics include structure of tissues and the molecular basis for macroscopic properties; chemical and electrical effects on mechanical behavior; cell mechanics, motility and adhesion; biomembranes; biomolecular mechanics and molecular motors. The class also examines experimental methods for probing structures at the tissue, cellular, and molecular levels.
Author(s): Lang, Matthew,Kamm, Roger D.

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Smossalade maken
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Leerlingen maken smossalade en denken daarbij na over de materialen die best geschikt zijn om de ingrediënten te verwerken (vergiet, dunschiller, eiersnijder, ...).


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3.051J Materials for Biomedical Applications (MIT)
This class provides an introduction to the interactions between cells and the surfaces of biomaterials. The course covers: surface chemistry and physics of selected metals, polymers, and ceramics; surface characterization methodology; modification of biomaterials surfaces; quantitative assays of cell behavior in culture; biosensors and microarrays; bulk properties of implants; and acute and chronic response to implanted biomaterials. General topics include biosensors, drug delivery, and tissue e
Author(s): Mayes, Anne

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At least one wounded in Afghanistan blast
At least one person has been wounded in a bomb attack in eastern Kabul. Julie Noce reports. Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international news. For over 160 years, Reuters has maintained its reputation for
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