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The chain fountain phenomenon, also known as the self-siphoning beads, Mould effect, or Newton beads is a physical phenomenon observed with a chain placed inside a jar. One end of the chain is pulled from the jar and is allowed to fall under the influence of gravity .
Sample of penicillin mould presented by Alexander Fleming to Douglas Macleod in 1935. The discovery of penicillin was one of the most important scientific discoveries in the history of medicine. Ancient societies used moulds to treat infections and in the following centuries many people observed the inhibition of bacterial growth by moulds.
Steve Mould (born 5 October 1978) is a British educational YouTuber, author, [2] and science presenter who is most notable for making science-related educational videos on his YouTube channel. Early life
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On 6 December 1943, the Reich Health Ministry ordered the medical community to conduct research into penicillin and other antibiotics. [134] Three vials of penicillin captured by the Afrika Korps reached Germany in 1943 and one was sent to Heinz Öppinger at Hoechst in Frankfurt, and he began conducting experiments with moulds. Penicillin was ...
Mold spores are drawn to specific environments, making it easier for them to grow. These spores will usually only turn into a full-blown outbreak if certain conditions are met. [32] Various practices can be followed to mitigate mold issues in buildings, the most important of which is to reduce moisture levels that can facilitate mold growth. [27]
The concept of the Thingmaker was introduced in 1963, as part of Mattel's Vac-U-Maker set. This omnibus toy combined the new moulds and Plasti-Goop technology with the existing Vac-U-Form machine, a vacuum forming toy, which molded simple sculptures by heating thin sheets of plastic, then using a vacuum pump to form the softened plastic over hard plastic forms.
The Formation of Vegetable Mould Through the Action of Worms, with Observations on their Habits (sometimes shortened to Worms) is an 1881 book by Charles Darwin on earthworms. [1] It was his last scientific book, and was published shortly before his death (see Darwin from Insectivorous Plants to Worms ).