Celestial Rodeo

The massive bull weighed two thousand pounds. Well, two thousand and nine actually, according to the auctioneer’s official scale reading, and he did not want to get into the trailer. And I had never tried to put a bull in a trailer before. A few cows, yes. A bull, no. Two of us stood inside […]

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Courage in the Cosmos

“When physicists work on a theory, they are not dealing directly with nature,” writes physicist Giovanni Vignale, “but with an abstract model which they have already decided which aspects of reality must be absolutely retained, and which ones can be dismissed. Often, in creating this model, they make bold and quite implausible assumptions, which can […]

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