Born on this day in 1931, the heroic revolutionary faces a dangerous new wave of White House aggression. We must treat his birthday as a rallying cry to resist the illegal siege of Cuba, writes ROGER McKENZIE
PEPTO-BISMOL, the US antacid drug, was first marketed in New York at the turn of the 20th century.
Its active ingredient is bismuth subsalicylate, technically a “salt” of bismuth. Bismuth salts have been known for their use in treating stomach upsets and bowel problems for centuries.
The medicine is effective for mild stomach ulcers, diarrhoea, and indigestion. One of the most surprising things about it is that it’s not known how bismuth subsalicylate actually works.
MIRANDA RICHMOND relishes the gloriously liberated art of Roy Oxlade, and traces his method back to the thinking of David Bomberg, his acknowledged teacher
Neutrinos are so abundant that 400 trillion pass through your body every second. ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT explain how scientists are seeking to know more about them
New research into mutations in sperm helps us better understand why they occur, while debunking a few myths in the process, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT
Olive oil remains a vital foundation of food, agriculture and society, storing power in the bonds of solidarity. Though Palestinians are under attack, they continue to press forward write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT


