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The fragments of glass found by the scientists range from 1-2 cm to just few millimetres in size.

At each site, scientists buried between 40 and 80 tea bags about 15 cm underground and collected these at various time intervals over three years, tagging their GPS location.

The South Korean capital was covered with at least 16 cm of snow on Wednesday - beating the city's previous record of 12.4cm from November 1972.

“The bullet track produced a 2 cm wide wound that extended down to the cartilaginous surface of the ear. There was initially significant bleeding, followed by marked swelling of the entire upper ear.”

The oak tree has a relatively small genome - if you stretched out all the DNA from a single cell of an oak tree, it would reach 66 cm.