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A lifetime ban on donating blood for men who have slept with other men, created to protect recipients from HIV, is being challenged as outdated and unfair by two Canadian physicians.
Mark Twain was a great American novelist, but Nathanial Rich notes that in his own lifetime—which ended exactly a hundred years ago today—he was read more widely as a travel writer.
“Although there must be a physical limit to how many memories we can store, it is extremely large. We don’t have to worry about running out of space in our lifetime,” writes Paul Reber.
It cost $10 billion and took 16 years, but the Large Hadron Collider finally went into operation yesterday in Switzerland — and the world didn’t end after all.
“A few snapshots.” According to novelist Tim O’Brien, that’s all our minds retain of our childhoods, adulthoods, and even the people we’ve loved most deeply. “And that’s memory? Little remnant […]