'Cognoscenti in a Room hung with Pictures', c1620. Artist: Anon
'Cognoscenti in a Room hung with Pictures', c1620. In the left foreground men round a table under an open casement window with leaded lights examine books, prints and scientific instruments. In the right foreground another group is viewing paintings. All the wall space in the room is covered with paintings. From the National Gallery, London.
© Art Media / Heritage-Images
David Lloyd George (1863-1945) Introducing the Munitions Bil
Illustration showing David Lloyd George, 1st Earl Lloyd George of Dwyfor, then Minister of Munitions, delivering a speech to the House of Commons on the Munitions Bill and displaying a High Explosive fuse.
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10218772
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Grapevine genome sequencing
Grapevine genome sequencing. Data from a gelelectrophoresis experiment to sequence the PinotNoir grape ( Vitis sp. ) genome. This technique isused to separate, in sequence, nucleotide basesfrom DNA (deoxyribonucleic acid) fragments. DNAcontains 4 bases (adenine, cytosine, guanine andthymine), which are represented here by differentcolours. The DNA fragments are placed in a porousgel that has an electric current applied to it.The nucleotides move down the gel according totheir size. After the process has run the basesappear as bands on the gel. The sequences of basesmake up genes, which encode an organism's geneticinformation. Photographed at the AgriculturalInstitute of San Michelle all'Adige, Trento, Italy.
© Mauro Fermariello/Science Photo Library