Science in Focus: Force and Motion: Workshop 8. Bend and Stretch
We all expect a spring to stretch or compress when a force is applied, but forces can even deform solid objects like the floor or the top of a table. In this workshop, students in a high school classroom explore ideas about tension and normal force. By applying a force to a spring and measuring the distance the spring is stretched, the students calculate the force constant or stretchiness of the spring. Lecture demonstrations using student volunteers help to illustrate that even rigid objects be
Author(s): Harvard-Smithsonian Center for Astrophysics

Science in Focus: Force and Motion: Workshop 8. Bend and Stretch
We all expect a spring to stretch or compress when a force is applied, but forces can even deform solid objects like the floor or the top of a table. In this workshop, students in a high school classroom explore ideas about tension and normal force. By applying a force to a spring and measuring the distance the spring is stretched, the students calculate the force constant or stretchiness of the spring. Lecture demonstrations using student volunteers help to illustrate that even rigid objects be
Author(s): Harvard-Smithsonian Center for Astrophysics

16. Between the Wars: From Re-formation to Exodus
<img src="http://mises.org/Controls/Media/DocumentImage.ashx?Id=6355" vspace="4" hspace="4" style="margin: 10px;" /><br />

Mesure dâ€™impact des mises sous accord prÃ©alable sur lâ€™Ã©volution du taux de chirurgie ambulatoire dans les Ã©tablissements de Champagne-Ardenne et de Lorraine
Auteur(s) : O. Pereira1, D. Cerejo1, Dr D. FranÃ§ois2, Dr J.P. Mineur3
Nancy, France
Author(s): No creator set

1 Energy use
Energy resources are essential for any society, be it one dependent on subsistence farming or an industrialised country. There are many different sources of energy, some well-known such as coal or petroleum, others less so, such as tides or the heat inside the Earth. Is nuclear power a salvation or a nightmare? This unit provides background information to each resource, so that you can assess them for yourself.
Author(s): The Open University