News tagged with electron microscope

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Tunnel view of how electrons play

(PhysOrg.com) -- Electrons behave like football teams: the match becomes interesting when the teamwork is as good as that conjured up by the players of FC Barcelona. Electrons which interact strongly with ...

Jun 21, 2011
5 / 5 (3) 1 | with audio podcast

Global first as Witsies split pollen

Wits researchers have become the first to cut sections through pollen grains and make it possible to view a three dimensional image of the internal wall. This positions them to determine how the characteristics ...

Sep 06, 2013
5 / 5 (3) 1

Video: Nanoengineered electron guns

In this video we see an electron gun made of many thousands of vertically aligned carbon nanotubes, each more than 1,000 times smaller than the width of a human hair. Dr Matt Cole, from the University of Cambridge, explains ...

Jun 20, 2014
3.8 / 5 (4) 0

Electron microscopes with a twist

Vortex beams, rotating like a tornado, offer completely new possibilities for electron microscopy. A method of producing extremely intense vortex beams has been discovered at the Vienna University of Technology ...

Nov 05, 2012
4.7 / 5 (3) 2 | with audio podcast

Coupled particles cross energy wall

For the first time, a new kind of so-called Klein tunnelling-representing the quantum equivalent of crossing an energy wall- has been presented in a model of two interacting particles. This work by Stefano ...

May 29, 2013
3.5 / 5 (4) 1 | with audio podcast