ScienceBlog

Supporting 21st Century Science GCSE

ScienceBlog

Scienceblog.org is our own portal for students and teachers. It brings all our latest articles, free images, newsfeeds, downloads, multimedia resources, and weblinks relevant for the study of  21st Century Science. This site is o­ne of  number of complementary websites we have developed for science education. All developed using wonderful Open Source software!

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Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?

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AM and FM Interactive Resources

Try these interactive resources for investigating how Amplitude Modulation (AM) and Frequency Modulation (FM) works....








The following resources require Java to be installed o­n your computer. Java Software is avaiablefor downloading at  http://www.java.com/en/download/manual.jsp

Some of these resources go well beyond the requirementsfor GCSE. However, the visual effects/demonstrations can be very useful for reinforcing the principoles of AM and FM

AM/FM  This applet covers both AM and FM using the modulating signal, alongside the  modulated carrier wave. Straightforward demonstration   Applet 1

The following applets may also be useful at GCSE although some are more complex than required at this level.

Amplitude Modulation   Applet 1   Applet 2   Applet 3   Applet 3

Frequency Modulation    Applet 1    Applet 2





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