Chemistry: A Volatile History exactly what Mendeleev would predict for an element that sits directly beneath liquid mercury in the periodic table. It aired in the United States under the title "Unlocking the Universe." The full series was released as a region 2 DVD set in 2015 by the Dutch company B-Motion. Chemistry: A Volatile History Chemistry: A Volatile History is a 2010 BBC documentary on the history of chemistry presented by Jim Al-Khalili. It was nominated for the 2010 British Academy Television Awards in the category Specialist Factual. Only in the last 200 years have we known what an element is – a
Amalgam tattoo amalgam tattoos are managed by simple reassurance about the nature of the lesion. For example, if radio-opaque particles are demonstrated on the x-ray, biopsy is unnecessary. Amalgam tattoo is found in up to 1% of people in the general population. It is the most common cause of solitary or focal pigmentation of the oral mucosa. Amalgam tattoo Amalgam tattoo (also termed localized argyrosis, or focal argyrosis) is a grey, blue or black area of discoloration on the mucous membranes of the mouth, typically on the gums of the lower jaw. It is an iatrogenic lesion, caused by entry of dental