C21: Physics Teaching for the 21st Century
Physics Teaching for the 21st Century is a resource for teachers who are interested in teaching physics concepts in real world contexts. The great problems of the 20th century were solved by a few incredibly smart people. The great problems of the 21st century will have to be solved by billions of moderately smart people. This is where teachers come in... In this website you will find: * articles that clearly explain the physics concepts in a real world context * take-home experiments that ca
A retrospective look at space shuttle Atlantis.
A retrospective look at space shuttle Endeavour.
Portugal buys time with bond sale
Debt-laden Portugal raised 1.65 billion euros in a surprisingly strong bond sale but analysts predict its high cost of borrowing will still force it into an international bailout within months.
Price hikes put rates in focus
The euro zone's manufacturing sector remained buoyant last month, allowing factories to ramp up their prices at the fastest rate since at least late 2002, according to a key business survey.
The Debt Ceiling
Presentation explaining the U.S. government debt ceiling
U.S. employment jumps in March
Private payrolls jump in March as the unemployment rate hits a two-year low of 8.8 percent.
Protests erupt across Syria
Protesters took to the streets in several Syrian cities on Friday - in a direct challenge to the rule of President Bashar al-Assad. Jon Decker reports.
Nasdaq, ICE go after NYSE
Summary of business headlines: Nasdaq OMX, ICE offer $11.3 billion for NYSE Euronext; U.S. job growth near one-year high; Gas prices slow U.S. auto sales; Wall Street continues rally.
From unemployed to entrepreneur
Exasperation leads to inspiration for one man who was laid off twice before starting his own internet company.
Analytical Chemistry 2.0
A complete textbook for Quantitative Analysis is freely downloadable. Teach yourself Analytical Chemistry, or be part of a class on the subject.
The Laboratory Notebook
This site provides well-organized instructions for keeping a laboratory notebook. In addition to the providing an overview of general rules and organization, the site also discusses organization of conclusions around three central types of outlines for measurement experiments, synthesis experiments and reporting of physical phenomena.
This site is a wonderful resource for undergraduate researchers and their mentors. Topics covered include research nuts and bolts, funding your science, scientific ethics, lab safety, communicating your science and mentoring issues. The site makes good use of case studies, self-study questions and references on each topic.
Cell Phone Spectrophotometer
Instructions and software are provided to allow students to build an inexpensive spectrophotometer, using digital cameras or cell phone cameras as array detectors. Supplementary materials include instructions for high school teachers and laboratory instructions for both high school and college students. Software source code allows customization.
Introduction to X-ray Diffraction (XRD)
This learning module presents the fundamentals of X-ray Diffraction for characterizing molecular structure in a form useful both as lecture notes and for self-study.
Electrochemistry and Detection of Organic and Biological Molecules such as Catechols
This ASDL online article describes a lab experiment whereby students learn how to prepare a conducting thin-film polymer electrode for the analysis of catechol and the effect of ascorbic acid on the cyclic voltammetric results.
Chromatography and Mass Spec Lectures
This site contains mass spectrometry and chromatography lecture notes for a graduate course. They are subdivided by topic (history, theory, etc.) and are easy to browse. They may be helpful to someone constructing their own course in chromatography and/or mass spectrometry. The notes are fairly complete. The historical sections may particularly save time in preparing courses. The notes also provide good information and a helpful outline to follow. The site also has some nice mass spectrometr
GC coating animation
This site is one in a series of sites with very good animations related to separations. This animation deals specifically with solute retention in GC. The animations are short (one to two minutes) and can easily be shown in class as part of a lecture. They are extremely helpful in illustrating key components and concepts of chromatographic systems. Users are encouraged to explore the site and the other brief animations as well. Separate links to other simulations by the same company (TRSL) are a
Tunable Monochromator Movie
This Quick Time movie illustrates and describes to operation of a Czerny-Turner monochromator. The slits, mirrors, grating and grating scan are described in the production of a specific wavelength at the outlet slit. The movie is a companion to the double beam spectrometer animation.
RSC.org: UV/Vis Spectroscopy
This video distributed on YouTube is on the basic principles of UV/Vis. Provides a good primer (~5 min), and the top-off look of the instrument is useful in explaining components. A double beam instrument is described.