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08-Jul-2016
Having already looked at arsenic and cyanide in the previous instalments in this series, our attention turns to thallium, another famed poison. Thallium perhaps doesn’t share quite the same profile as arsenic and cyanide, but despite this it’s perhaps an even more effective compound in poisonings. This graphic looks at its history and effects.
Thallium as an element was first discovered in 1861 by the British chemist William Crookes. He identified it from the bright green line in its emission spectrum, and consequently named it thallium, from the Greek word ‘thallos’, meaning ‘green shoot’. The toxicity of thallium and its compounds was quickly noticed; experiments in which the compound was fed to animals saw all of the test subjects die within a few days.
2018’s biggest science stories
As we head into 2019, it’s time to take a look back at some of the biggest science news stories over the past year. This year’s science news featured water on Mars, the effects of e-cigarettes, new types of isomerism and bonding, and more! 2018 saw a number of significant discoveries in sci ... more
Unleashing our immune systems against cancer
The first of the 2018 Nobel Prizes is awarded. The 2018 Nobel Prize in Physiology or Medicine was awarded to James P. Allison and Tasuku Honjo for their discovery of cancer therapy by stimulating the immune system to attack tumour cells. This graphic takes a look at the prize-winning research. more
The creation of tools made from laser light
After the Nobel Prize for Physiology or Medicine has been awarded, it is physics' turn. The 2018 Nobel Prize in Physics was awarded to Arthur Ashkin, Gérard Morou and Donna Strickland for their pioneering innovations in the field of laser physics. Strickland is only the third woman to recei ... more
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