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Explore the Physic-al side of technology! Find out how to detect the visible and invisible parts of the colour spectrum, and how a tiny sensor can help us see the earth's gravitational pull, or track the movement of lava in a volcano. And take part in the interval quiz for fabulous Pint of Science prizes!
Multi-spectral Imaging: Making the Most of Colour Information with Visible and Invisible Light
Miguel Preciado (Research Associate - Physics and Astronomy)
In nature, colour vision is an evolutionary capability that facilitates the recognition of opportunities and threads to animals. Human beings, for example, have a very simplified representation of the massive spectral information available in the light radiation by the combination of three primary colours (red, green and blue). Multi-spectral imaging is a technique that generalises the concept of colour detection well beyond human capabilities, with an almost arbitrary number of "primary colours" (spectral bands), even extending the range to different kinds of light invisible for us.
From Volcanoes to Space; How a Tiny Gravity Sensor Will Let Us See the World through New Eyes
Dr. Richard Middlemiss (Research Associate)
The ability to measure tiny variations in gravitational acceleration, allows us to see not just the Earth's gravitational pull, but the influence of smaller objects. The more accurate the gravimeter, the smaller the objects we can see. From tracking magma moving kilometres under volcanoes before eruptions, to revealing hidden archaeological sites; from finding new mineral resources, to tracking the attitude of nano-satellites; gravimetry gives us the ability to benefit society in many ways. At Glasgow University we’ve developed the smallest and cheapest gravity sensor yet.