The Law of Action and Reaction: Newton's Third Law
The Law of Action and Reaction: Newton's Third Law This NASA video segment explores how Newton's third law of motion applies to aerospace.
The Law of Action and Reaction: Newton's Third Law
This NASA video segment explores how Newton's third law of motion applies to aerospace. An instructor at NASA's National Test Pilot School defines the third law and explains how a jet engine works to move an aircraft forward. There is also a discussion about the four forces involved in flying an aircraft.
Really Foamy Reaction
Elephant toothpaste is the name given to the catalyzed decomposition
reaction of 30% hydrogen peroxide that uses soap to collect the oxgen
gas that is produced. It is a favorite of most students at chemistry
shows
Molecular Visualization of DNA Replication
3-D animation of the process of DNA replication at the molecular level. Shows the replication fork, the leading strand with continual replication, and the lagging strand where the okzaki fragments are being produced. No narrations. Set to music. 1:24 min.
DNA Molecular Structure
This 3D scientific animation dynamically show a zoom in from a group of dividing cells to a close-up of a DNA molecule. No voice. Grades 5-12. 39 sec.
Molecular Visualizations of DNA
Amazing CGI visualization of molecular biology's central dogma. It shows animations of DNA coiling, replication, transcription and translation.
HX to Alkene Reaction
Video discusses the first two electrophilic addition reactions. The first one is addition of HX to an alkene. The second one is hydration reaction. Each one of these is explained.
Halogen Addition Reaction
Let's take a closer look at the Halogen Addition Reaction. Video discusses vocabulary such as, halogen, solvent, non-reactive solvent, and how to add the halogens.
5.9 A reaction to the bourgeois establishment
In this unit you will be introduced to a variety of Delacroix’s work and see how his paintings relate to the cultural transition from Enlightenment to Romanticism. You will study Delacroix’s early career, his classical background, the development of Romantic ideas and their incorporation into his work. You will have the opportunity to study some of his most important paintings and compare them to works favouring a Neoclassical approach. You will also be able to see how his themes, subjects
2.3 A passionate reaction
In this unit you will be introduced to a variety of Delacroix’s work and see how his paintings relate to the cultural transition from Enlightenment to Romanticism. You will study Delacroix’s early career, his classical background, the development of Romantic ideas and their incorporation into his work. You will have the opportunity to study some of his most important paintings and compare them to works favouring a Neoclassical approach. You will also be able to see how his themes, subjects
5.1 Molecular reactivity is concentrated at key sites
From diamonds to dynamite everything involves a chemical reaction. This unit introduces you to the concepts and principles that underpin chemistry at the molecular level. Everyday experiences are used to help you to understand the more complex issues.
1.6 Binding forces in molecular and non-molecular substances – a first look
From diamonds to dynamite everything involves a chemical reaction. This unit introduces you to the concepts and principles that underpin chemistry at the molecular level. Everyday experiences are used to help you to understand the more complex issues.
1.5 Non-molecular substances
From diamonds to dynamite everything involves a chemical reaction. This unit introduces you to the concepts and principles that underpin chemistry at the molecular level. Everyday experiences are used to help you to understand the more complex issues.
1.4 Molecular substances
From diamonds to dynamite everything involves a chemical reaction. This unit introduces you to the concepts and principles that underpin chemistry at the molecular level. Everyday experiences are used to help you to understand the more complex issues.
1.2.1 The molecular level
In this unit, we study one aspect of the fluctuating nature of an organism's environment. We consider how organisms living in a temperate climate, such as that in Britain, are adapted to cope with winter. You will see that there is much diversity of adaptations among organisms, with different species coping with the demands of a fluctuating environment in quite different ways. As cyclic variations are a widespread feature of environments, the range of adaptations to them is an important source o
7.4.6 Molecular beam epitaxy (MBE)
Microelectronics has enabled designers of integrated circuits to exercise complete control over the electrical characteristics of each component they create. This unit will illustrate how such control is achieved and the various methods that can be applied in differing circumstances.
Non-Newtonian liquid - hole that does not disappear A mixture of cornstarch or potato flour and water in a ratio between 2:1 and 3:2.
All the Chemistry Basics in just 3 minutes In this highly energized lecture, Hank attempts to summarize "half a semester" of chemistry in just 3 minutes - molecules, elements, atoms, protons, neutrons, electrons, orbitals and chemical bonds.
Description et exploitations des traces du logiciel dalgèbre Aplusix
Cet article porte sur lemploi de traces dans un contexte éducatif et sur leur utilisation dans un EIAH. La première partie présente le logiciel Aplusix, un micromonde pour l'apprentissage de l'algèbre qui permet lenregistrement de productions délèves, comme celles obtenues dans l'environnement classique papier, mais comportant de plus d'autres informations, comme le temps, les hésitations, les corrections. Ce recueil produit une trace brute qui représente une modélisation comporte
NMR Spectroscopy
This site contains web-based programs that allow the user to predict chemical shifts, spin-spin coupling patterns and NMR line shapes affected by dynamic chemical exchange. This site will be most useful for students with a good background in the fundamentals of NMR theory.
