Monthly Archives: April 2015

Science and Politics: An Election 2015 Special

Please find below a summary of our Science and Politics: An Election 2015 Special  document. You can download the full document at the bottom of this blog for free. In summary: >>The Conservatives promise to train an extra 17,500 maths …

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Microscopes – They Don’t Clean Themselves!

There are three things which most research grade and laboratory microscopes share in common: (1) They are relatively expensive pieces of equipment, (2) They are delicate instruments with a complex series of components and (3) They don’t clean themselves! One …

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Koehler Illumination: A History and Practical Set Up

  The method of Koehler Illumination is named after its’ inventor- August Koehler (1866-1948). When he published this technique in 1893, many of the sources of illumination for microscopy were reliant on natural light using mirrors, or chemical or gas …

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Resolution in Microscopy

When referring to optics and microscopy, resolution is simply defined as the minimum distance at which two separate points in a field of view can be distinguished as distinct. We have looked at numerical aperture (NA) in a previous article …

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