No-one: Dan, I see the donut-shaped universe idea is back in the news. Didn't you write about that in the last century?
Me: Yes; yes I did. A big eight-page spread in @SkyandTelescope, July 1999, on the topology of the universe: (#space#physics#donuts)
And look how they wrapped the headline around the first double-page spread, Pac-Man style. Pretty neat (and apt)!
And actually it all started (for me, anyway) with a workshop that @gstarkman organized at @cwru back in 1997. Good (and simpler) times!
Ok, one more thing on the subject of universes and donuts: We all remember that Homer Simpson proposes the idea of a donut-shaped universe to Stephen Hawking (who says he might steal it). So I checked when that episode of The Simpsons aired... (cont'd)
...and apparently it first aired on May 9, 1999. In other words, it aired after I handed in my story to @SkyandTelescope, but before the magazine was actually published. Wacky coincidence! (I guess the idea of donut-shaped universes was "in the air" in those days. :) )
• • •
Missing some Tweet in this thread? You can try to
force a refresh
1/n According to numerous colleagues on Twitter, Nobel Laureate physicist Steven Weinberg has died. He was a towering intellect. I'm sure much of the coverage to come will focus on his contributions to science, but (cont'd) (Photo: Jeff Wilson/The Guardian)
2/ ...he was also a first-rate science communicator. His books, and his essays in the @nybooks, were illuminating and authoritative, regardless of the topic.
3/ This is perhaps the most famous -- or infamous? -- thing that he wrote:
@AstroKatie@yorkuniversity@YorkUScience 2. The big bang happened ~13.8 billion years ago. So what lies ahead? Could the universe collapse in a big crunch? Maybe – but as Prof. Mack explained, it's more likely that it will keep expanding. In fact, the universe is currently not only expanding but also accelerating...
@AstroKatie@yorkuniversity@YorkUScience 3. We seem to live in a universe with a non-zero cosmological constant. Right now, the CC appears small – but in the far future, the CC could come to dominate. That won’t end well! At best, in that scenario, we’re going to freeze to death in the dark...