Scientists Are Subverting Formal Publishing. Well, Some of Them
Every week science journalists get a bunch of emails from various Respectable Scientific Journals telling us, in advance, what articles those journals are going to publish. When I started in this game, these tables of contents came by fax; today, in the future, they're downloadable PDFs. The quo for all this quid is that we…
A New World’s Extraordinary Orbit Points to Planet Nine
In early 2016, two planetary scientists declared that a ghost planet is hiding in the depths of the solar system, well beyond the orbit of Pluto. Their claim, which they made based on the curious orbits of distant icy worlds, quickly sparked a race to find this so-called Planet Nine—a planet that is estimated to…
SpaceX Successfully Launches the Falcon Heavy—And Elon Musk's Roadster
Florida’s space coast roared to life on Tuesday as SpaceX fired off its long-in-development Falcon Heavy rocket from Kennedy Space Center. Tens of thousands of spectators made the pilgrimage from across the country to experience the immense heat and thunderous roar of the rocket’s 5 million pounds of thrust. Upon liftoff, at precisely 3:45 pm…
Family DNA Testing at the Border Would Be an Ethical Quagmire
In the unfolding family separation crisis at the US-Mexico border, one thing has become increasingly clear; the federal government lacks any real plan for reuniting children with their parents. On Wednesday, President Trump signed an executive order that would keep children and their parents together, though in indefinite detention. But the administration’s “zero-tolerance” policy reversal…
Something's Off With the Turbolaser Shots in The Last Jedi
I have a problem: I can't stop analyzing Star Wars movies. On top of that, there is another issue. I've stated that the physics of a movie doesn't have to be absolutely correct—and I still believe that. And now, I am going to complain about some physics in Star Wars: The Last Jedi even though…
You Can Do Physics Even When You're Goofing Off
Sometimes, when I'm proctoring an exam, I end up with a little too much time on my hands. So I play with stuff—whatever I've got on hand. In this case, it was one of those clicky pens. It had stopped writing, so I assumed it was out of ink. Of course it might not be…
Please Stop Building Houses Exactly Where Wildfires Start
Built well, a city should provide a bulwark against disaster. Fundamentally, all cities are fortresses. Or at least they should be. If a city is a fortress, where’s the wall? The edges of North American cities today aren’t edge-like at all. Most of them, especially in the West, ooze outward in a gradient, urban to…
2001: A Space Odyssey Predicted the Future—50 Years Ago
It was 1968. I was 8 years old. The space race was in full swing. For the first time, a space probe had recently landed on another planet (Venus). And I was eagerly studying everything I could to do with space. Then on April 2, 1968 (May 15 in the UK), the movie 2001: A…
Lots of Doctors Recommend Weed Without Understanding It
If you go to a doctor and ask them to recommend you medical marijuana, don’t expect them to fully understand how the drug works, both for you as an individual patient and in general as a therapy. Because no one really does. With more and more states legalizing marijuana for medical or recreational use, cannabis…
To Advance Artificial Intelligence, Reverse-Engineer the Brain
Your three-pound brain runs on just 20 watts of power—barely enough to light a dim bulb. Yet the machine behind our eyes has built civilizations from scratch, explored the stars, and pondered our existence. In contrast, IBM’s Watson, a supercomputer that runs on 20,000 watts, can outperform humans at calculation and Jeopardy! but is still…