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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.
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 ...
Toshiyuki Nakagaki (born 1963) is a Japanese professor, biologist, ethologist at the Research Institute of Electronic Science (RIES). [1] He is famous for leading experiments relating to slime mold , specifically its ability to solve mazes as a lifeform without a brain.
Mould explaining the self-siphoning chain fountain at the 2015 Cambridge Science Festival. Mould's YouTube video on rising self-siphoning beads, in which he demonstrated the phenomenon and proposed an explanation, [5] brought the problem to the attention of academics John Biggins and Mark Warner of Cambridge University, [6] who published their ...
The S.I. unit for the mold constant B is seconds per metre squared (s/m 2). [4] According to Askeland, the constant n is usually 2, however Degarmo claims it is between 1.5 and 2. [ 3 ] [ 5 ] The mold constant B can be calculated using the following formula:
He also weighed castings per unit area per year, then worked out how thick a layer castings would make, compared with rates of sinking. Additionally, he worked out casting weight per worm per year. Darwin's experiments included measuring the speed with which stones slowly settle into the earth.
For conservation of number, the task designed to test children involves a set of several sticks or round counters. These counters (usually 6 for a 6-year-old) are placed into two parallel, horizontal lines that are the same length. Then the researcher spreads out the counters in one of the lines, to make that line longer than the other.
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