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Gradient

The gradient is a vector operation which operates on a scalar function to produce a vector whose magnitude is the maximum rate of change of the function at the point of the gradient and which is ...

http://hyperphysics.phy-astr.gsu.edu/hbase/gradi.html#c1

Derivative

The derrivative of f(x) with respect to x is the rate of change (slope) of the function (f) at any value x.

http://hyperphysics.phy-astr.gsu.edu/hbase/deriv.html#c1

Internet of Things: how it will change the world

An article on how Interconnected devices are set to alter our perceptions of reality.

http://www.techradar.com/news/world-of-tech/internet-of-things-how-it-will-change-the-world-958669

How aerogel will change the world

Article from the times on how this new material could protect your home against bomb blasts, mop up oil spillages and even help man to fly to Mars.

http://www.timesonline.co.uk/tol/news/science/article2284349.ece

The Cannon

This JAVA applet simulates projectile motion - fire a canon and change the angle and initial velocity.

http://www.msu.edu/user/brechtjo/physics/cannon/cannon.html

A picture of a circuit in which you can change the resistance and voltage. You can see the result of your adjustment on a digital voltmeter, and millimeter. Includes a statement and description of ...

http://micro.magnet.fsu.edu/electromag/java/ohmslaw/

GPS Time Series

Monitoring the Earth's surface using GPS (Global Positioning System) technology, providing quantitative data of changes in position and rates of change.