Using electron microscopy in the 1950s, Sanford L. Palay and George E. Palade clearly visualized synapses as specialized junctions between neurons. This confirmed how neurons communicate.
Maurice Wilkins
Wilkins used X-ray diffraction techniques to study DNA fibers. His work at King's College London helped provide crucial evidence that DNA had a helical structure.
Electron microscopy uses a beam of electrons instead of visible light to produce highly magnified images of very small structures such as cells, organelles, viruses, and materials at the nanometer scale.
The electron is generally considered to have been discovered on 30 April 1897, when J. J. Thomson announced his results at the Royal Institution in London, showing that cathode rays were negatively charged particles smaller than atoms.
Electrons: Negatively Charged Particles
The first verified use of nerve agents in warfare occurred during the Iran–Iraq War, when Iraq used tabun (GA) against Iranian forces in March 1984 near Basra / the Majnoon Islands battle area. This is widely regarded as the first battlefield deployment of a nerve agent in history.
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