2.4 Going down: using scientific notation for small numbers

You saw in Section 2.2 how the powers of ten notation provides a concise method of expressing very large numbers and reduces the chances of errors when, otherwise, many zeros would have to be written out. You will now see how the powers of ten notation can be extended to cover small numbers, such as 0.000 000 0002 m.

Write down t
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Japanese Vocab Builder #8 - Vocabulary and Phrases for the Restaurant
Learn Japanese with JapanesePod101.com! Our Japanese vocabulary lists are listener favorites, and now we’ve made it even better! In each lesson, you’ll hear the Japanese words and phrases from the Japanese vocabulary lists. Join us for Japanese Vocab Builder! In this lesson, you’ll learn the words and phrases for the Restaurant. Click here to make [...]
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Grammar Rock-Prepositions
This is a colorful School House Rock video on prepositions. The prepositions are used in phrases and illustrated accordingly. Prepositions never stand alone and give specific information. Some of the phrases are over the rainbow, with a friend, over the meadow, through the tree, etc. This is a fun teaching resource to introduce and/or reinforce prepositions in the classroom and/or at home. (3:01)
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7.3 Is the rate of reaction very slow?

If the equilibrium position is very favourable, then the reason why Reaction 8.1 fails to occur at 525 °C must be that its rate is very slow. Usually, a reasonable response would be to increase the temperature yet further, but the structure and economy of the car gives us little scope to do this. The alternative is to use a catalyst, which leaves the equilibrium constant unchanged, while speeding the reaction up.

Let us look at the changes that take place in the internal energy
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Founding Mothers
Sharp quills did the bidding of the even sharper intellects of the Revolution's founding mothers. Listen to the words of Mercy Otis Warren and Abigail Adams, voiced by Abigail Schumann.
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Learning outcomes

After studying this course, you should be able to:

  • explain the meaning of all the emboldened terms introduced in this course

  • explain what is meant by a physical world-view and describe some of the major world-views that have emerged during the evolution of physics

  • describe some of the major concepts of physics, give brief biographical sketches of some of the major contributors to the development of physics and name some of the major events that have
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9.18 Developmental Neurobiology (MIT)
This course considers molecular control of neural specification, formation of neuronal connections, construction of neural systems, and the contributions of experience to shaping brain structure and function. Topics include: neural induction and pattern formation, cell lineage and fate determination, neuronal migration, axon guidance, synapse formation and stabilization, activity-dependent development and critical periods, development of behavior.
Author(s): Nedivi, Elly

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Helen Keller, Part V
This is from the Discovery Channel/Education series and this video is an animated biography of Helen Keller aimed at elementary school children.
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Thai protesters force PM to flee election meeting.
Subscribe: http://smarturl.it/reuterssubscribe Thai protesters break into an air force compound and force acting prime minister to flee an election meeting. Chris Meyers reports. Subscribe: http://smarturl.it/reuterssubscribe More 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 intern
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Getting Started: 01 Understanding Flash
Learn what Flash is and what it can do. Create and display animation, video, and sound content. Add interactivity. Learn the Flash interface.
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References

Sheldon, P. (2005) Earth's Physical Resources: An Introduction (Book 1 of S278 Earth's Physical Resources: Origin, Use and Environmental Impact), The Open University, Milton Keynes
Smith, S. (2005) Water: The Vital Resource (Book 3 of S278 Earth's Physical Resources: Origin, Use and Environmental Impact), The Open University, Milton Keynes

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21A.355J The Anthropology of Biology (MIT)
If the twentieth century was the century of physics, the twenty-first promises to be the century of biology. This subject examines the cultural, political, and economic dimensions of biology in the age of genomics, biotechnological enterprise, biodiversity conservation, pharmaceutical bioprospecting, and synthetic biology. Although we examine such social concerns as bioterrorism, genetic modification, and cloning, this is not a class in bioethics, but rather an anthropological inquiry into how t
Author(s): Helmreich, Stefan

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Acknowledgements

The content acknowledged below is Proprietary (see terms and conditions). this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence.

Grateful thanks is made to the pupils and staff of: The Henley College, Oxon; Langtree School, Wo
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7.3 The formation of light nuclei

It is the very high temperatures that make the early stages of the big bang relatively simple to calculate. When it comes to the formation of the first nuclei, we are looking at a temperature that has dropped to about 109 K, this being achieved approximately 3 minutes after the instant of the big bang. For nuclei to form, the temperature must still be high enough that charged nuclei can approach each other closely – despite the electrostatic repulsion between their positive charg
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Curving photos for a print look
This very easy-to-follow tutorial walks you through adding a thin white border and a paper-like curve and drop shadow to your digital photo for a very realistic effect.
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4.4 Reducing nutrient availability

Once nutrients are in an ecosystem, it is usually much harder and more expensive to remove them than tackle the eutrophication at source. The main methods available are:

  • precipitation (e.g. treatment with a solution of aluminium or ferrous salt to precipitate phosphates);

  • removal of nutrient-enriched sediments, for example by mud pumping; and

  • removal of biomass (e.g. harvesting of common reed) and using it for thatching or
    Author(s): The Open University

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Doing your best
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2.2 Persistent currents lead to constant magnetic flux

An important consequence of the persistent currents that flow in materials with zero resistance is that the magnetic flux that passes through a continuous loop of such a material remains constant. To see how this comes about, consider a ring of metal, enclosing a fixed area A, as shown in Figure 6a. An initial magnetic field B0 is applied perpendicular to the plane of the ring when the temperature is above the critical temperature of the material from which the rin
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4.1 Introduction
Optical-fibre communications became commercially viable in the 1970s and innovation continues today. This unit will illustrate how very high data rates can be transmitted over long distances through optical fibres. You will learn how these fibres are linked, examine the technology used and assess the future direction of this continually developing area of communication.
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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

15.974 Leadership Lab (MIT)
This five-day interactive and experiential workshop focuses on how leaders lead innovations that both promote social responsibility and produce business success. The workshop is organized around three main parts: observation, sense-making, and creating. During the observation phase, students spend a full day inside the Boston office of the design company IDEO and visit some of the most interesting proven innovators in corporate social responsibility such as Ben & Jerry’s, KLD, MBDC, Pl
Author(s): Scharmer, Claus Otto

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C