Dried and wrinkled salad/lettuce can be "refreshed" by immersing it in cold water. This is due to osmosis. The process is shown in a time lapse video where things are speeded up 720x. What took 3 h 35 m can be shown in 18 seconds... thanks to time lapse photography! Images are set to music. Run time 0:58.
Animation of Joint Movement, Part 1
There is no narration or sound; the video features simple animation showing how human joints move. (57 seconds)
Animation of Joint Movement, Part 2
There is no narration or sound; the video features simple animation showing how human joints move. (33 seconds)
Mysterious Ball Lightning
This video shows many different incidents of ball lightning. Ball lightning may be an atmospheric electrical phenomenon, the physical nature of which is still controversial. The term refers to reports of luminous, usually spherical objects which vary from pea-sized to several meters in diameter. It is sometimes associated with thunderstorms, but unlike lightning flashes, which last only a fraction of a second, ball lightning reportedly lasts many seconds. Video is set to music and no words are s
This is a brief (56 seconds) video using computer animation that discusses how air is exchanged in the lungs. Good sound quality.
Flight over the Surface of the Sun
This brief video clip shows a simulated flight over the surface of the Sun, courtesy of the Hubble team. No sound. 16 seconds.
The Policy-Making Cycle
This video is accompanied by text. "Political socialization is the process by which people learn and form opinions about government and politics. This process typically begins at home, where children overhear their parents talking about political issues, concerns, and politicians. Most people can probably recall a time when they heard their parents or other adults praising or ranting about a politician. The things that are said, both good and bad, influence how young minds perceive government an
Valentine's Day Song
The video starts by counting 10 hearts, then sings a valentine song to the tune of "One Little Indian." Hearts are on a felt board while the teacher sings. Various shapes are also taught between the song.This video is really great for small children to catch on to.
Women in Politics
A three minute video highlighting some of the most important women in American politics. Needs more background to be of more value. Just a selection of sound bites, but good insights.
How to Paint Roses
Marjorie Harris shares her freehanding method of painting roses. Marjorie uses decorative painting methods and her fine art training to quickly paint roses. After several seconds of silence after her introduction, the artist proceeds to explain her steps. (4;29)
Paris Peace Conference - 1919
The video shows footage of the time. You can see who the leaders of the peace conference were and what they wanted. There are images of destroyed cities. The main aims of the winners are listed. Wilson's suggestions are explained. Post war politics in Germany is explained and the role of communism. There is reference to the way in which the leaders drew the map of Europe anew. There is a map shown. There is an account of the main terms of the The Treaty of Versailles.
While the American system of politics has generally been defined as a two-party system, occasionally a third party emerges, influencing elections and siphoning important votes from the major parties. Third parties often begin as single-issue parties that oppose or promote a certain social, economic, or political topic. For example, the Republican Party formed in the 1850’s as a third party in opposition to slavery. Similarly, in 2000, Ralph Nader formed the Green Party that focused on environm
While the president is limited to serving two terms in office, members of Congress can serve an unlimited number of terms. In the mid-nineteenth century, most congressional representatives served only a single term because at that time politics was not considered a career. However, by the mid-twentieth century, congressional representatives began to view holding congressional office as a prestigious career. (Video is narrated with slides and speeches.)
Radish seeds sprouting: time lapse
A great example of germination. This time lapse video shows how radish plants go from seeds, to seedlings, to plants in just nine days. Amazing how fast the radishes grew. Time lapse sequence set to take a frame each 14 minutes 24 seconds. The time lapse spans 9 days. Two 90 watt compact floresecent lights where used for both the camera shooting light and the grow lights. The lights were set on a timer for 18 hours on and 6 off (for the health of the plants). The jump in the video is the 6 hou
From Seed to Flower
The growth and development of a plant is one of the most spectacular events in nature. Yet, because it happens so slowly, over the course of days or weeks, it is difficult to observe in real time. This video segment depicts plant growth in time-lapse format, allowing the viewer to observe in just a few seconds some of the most important life stages of a plant, from germination to the formation of a flower, and several phases in between. Footage from NOVA: "The Shape of Things." Set to music. N
Infinitives Used in Passive Voice
This short lecture shows a teacher discussing and giving examples of infinitives used with the passive voice.
Active Voice and Passive Voice
In this clip Yossarian the Grammarian shares his simple and infallible method for determining whether a verb is in the active or in the passive voice. He explains how to make active verbs passive, and vice versa. Examples are shown on a white board of active and passive voice.
The video is an animated movie about barn animals acting out human faults in life and politics. This captivating animation is based on Orwell's classic tale, 'Animal Farm'.
The Passive Voice Get = Be
This lecture is an explanation of the idea of passive voice and how get can be used in place of be. A variety of examples help to illustrate the concepts in the lesson. The teacher also addresses how questions are different in passive voice.
Passive Voice Introduction
This is a basic explanation of how the passive voice works. The teacher lecturing in the video specifically addresses how the form of "be" changes depending on the verb tense used in the sentence. Examples of various sentences help to illustrate the ideas presented in the lesson.