Month: March 2018

My privilege wakeup call with the author of “So You Want To Talk About Race”

My privilege wakeup call with the author of “So You Want To Talk About Race”

For many white liberals, the election of Donald Trump in 2016 and the implicit approval of overtly racist, xenophobic policies like the border wall and the Muslim ban was a traumatic but much-needed wake-up call. The curtains on darkened windows were thrown open, revealing just how pervasive racism remains in a country built on stealing land and stealing people. But even after the curtains are thrown open, some people choose to hide under the blankets and go back to sleep. “You can’t just go around calling anything racist. Save that word for the big stuff. You know, for Nazis and cross burnings and lynchings. You’re just going to turn people off if you use such inflammatory language.” That’s what author Ijeoma Oluo’s white friend told her when she dared to complain about a racist exchange online. “It seemed far more important to him that the white people who were spreading and upholding racism be spared the effects of being called racist, than sparing his black friend the effects of that racism,” Oluo recalls in her new …

Wormhole Allows Information to Escape Black Holes

Wormhole Allows Information to Escape Black Holes

In 1985, when Carl Sagan was writing the novel Contact, he needed to quickly transport his protagonist Dr. Ellie Arroway from Earth to the star Vega. He had her enter a black hole and exit light-years away, but he didn’t know if this made any sense. The Cornell University astrophysicist and television star consulted his friend Kip Thorne, a black hole expert at the California Institute of Technology (who won a Nobel Prize earlier this month). Thorne knew that Arroway couldn’t get to Vega via a black hole, which is thought to trap and destroy anything that falls in. But it occurred to him that she might make use of another kind of hole consistent with Albert Einstein’s general theory of relativity: a tunnel or “wormhole” connecting distant locations in space-time. While the simplest theoretical wormholes immediately collapse and disappear before anything can get through, Thorne wondered whether it might be possible for an “infinitely advanced” sci-fi civilization to stabilize a wormhole long enough for something or someone to traverse it. He figured out that …