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A look at the results from BICEP2 detector in the south pole which gives evidence for inflation happening at the start of the universe.
Kaufmann's experimental results on deflection of electrons in an electromagnetic field favoured Abraham's theory, not Einstein and Lorentz, but were eventually proved wrong.
Ever wondered what it would look like to microwave soap, wax crayons or even fairy lights? This virtual microwave lets you see the results without any of the mess.
White noise is noise whose amplitude is constant throughout the audible frequency range. It is fairly easy to produce white noise - it is often produced by a random noise generator in which all ...
A diagram showing a dc generator working, on which the frequency of ration is adjustable. The results are seen on an analogue meter, and an oscilloscope screen. Useful description of the commutator.
A java applet which allows the user to add particles to a box which are positive or negatively charged, moving at random so that the motion can be observed.
An animation of current flow through a resistor in which you can change the factors that are denoted by the coloured bands on the resistor and observe the results of your changes.
Shows cannonball projected off mountain. Different speeds produce different results. I particularly liked the "touch" when the ball completed an orbit and returned to where it left the mountain!
When an object feels hot, the atoms inside it are moving fast in random directions, and when it feels cold, they are moving slowly and when it gets cold enough they stop moving - this is called ...
Historical background and online tutorials on diffraction in which you can vary wavelength and aperture width, and see the results as wave fronts, and as an intensity graph. Explanations include the ...
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