a: Photo: Bradley Garrett

b: Treatment of patient with depressed skull fracture to the parietal bone. Surgical instrument used to drill into the bone and lift the fractured section. Engraving Paaw, Pieter, 1564-1617 Dimensions  20 x 12 cm.

c: Et in Arcadia ego  (1637–38) by Nicolas Poussin  Dimensions 85cm x 121cm

d: Google servers Hamia, Finland

e: Screenshots taken of Donald Trump as people move towards Capitol Hill 06/01/2021

f: Hollow earth illustration 1908

g: An ice age artist most likely created this image in Chauvet Cave by spitting red pigment over a hand pressed against a rock (copyw DRAC Rhône-Alpes/Ministère de la Culture et de la Communication)

h: High-quality colour plastic wrap at Fascinating Prices