What’s the application? Measuring the distance from the Earth to the Moon by bouncing a laser off one of the retro-reflector arrays left there by the Apollo missions. What problem(s) is it the solution to? 1) “How does the distance from the Earth to the Moon vary over time due to things like tidal drag?”… Continue reading Amazing Laser Application 3: Lunar Laser Ranging!
Category: Science
Amazing Laser Application 2: Laser Cooling!
What’s the application? Using lasers to reduce the speed of a sample of atoms, thereby reducing their temperature to a tiny fraction of a degree above absolute zero. What problem(s) is it the solution to? 1) “How can I make this sample of atoms move slowly enough to measure their properties very accurately?” 2) “How… Continue reading Amazing Laser Application 2: Laser Cooling!
Amazing Laser Application 1: Light Show!
What’s the application? The use of lasers to provide an entertaining light show for humans, dogs, or cats. What problem(s) is it the solution to? 1) “How will I entertain my dog or cat?” 2) “How can we distract people from the fact that Roger Daltrey has no voice left?”
Laser Smackdown: The Finalists
A couple of weeks ago, I announced a contest to determine the Most Amazing Laser Application. After a follow-up post listing the likely candidates, we have a final list of candidate applications, an even dozen of them (after consolidating some related topics): Cat toy/ dog toy/ laser light show Laser cooling/ BEC Laser ranging/position measurement… Continue reading Laser Smackdown: The Finalists
Talking to My Dog About Science: Why Public Communication of Science Matters, and How Weblogs Can Help
My talk at Maryland last Thursday went pretty well– the impending Snowpocalypse kept the audience down, as people tried to fit in enough work to compensate for the Friday shutdown, but the people who were there seemed to like it, and asked good questions. If you weren’t there, but want to know what I talked… Continue reading Talking to My Dog About Science: Why Public Communication of Science Matters, and How Weblogs Can Help
How to Teach Physics to Your Dog: Obsessive Update
Miscellaneous stories and links about How to Teach Physics to Your Dog: Kathy Ceceri, who wrote the story about the book that ran in the Times Union, has posted the full article on the Home Physics blog. The link to the paper itself may very well disappear behind a paywall, but this post should remain… Continue reading How to Teach Physics to Your Dog: Obsessive Update
Why Does E=mc2? by Brian Cox and Jeff Forshaw
I want to like this book more than I do. As a general matter, this is exactly the sort of science book we need more of. As you can probably guess from the title, Why Does E=mc2? sets out to explain Einstein’s theory of relativity, and does an excellent job of it. It presents a… Continue reading Why Does E=mc2? by Brian Cox and Jeff Forshaw
Upcoming Appearances: How to Teach Physics to Your Dog Live
A couple of things happening in the next week, for those who would like some How to Teach Physics to Your Dog. On the radio side, I am scheduled for an interview at 6:30 this Tuesday, Feb. 9, on KSOO’s Viewpoint University. If you don’t happen to be in the Sioux Falls, SD area, they… Continue reading Upcoming Appearances: How to Teach Physics to Your Dog Live
You’re Not Some Kind of Squirrel-Lover Are You?
Despite my best efforts to sleep late and miss my flight, I made it to the airport with plenty of time to get on my flight to DC. Which means that I will, i fact, be giving a talk TODAY at 3:30 pm at the University of Maryland, College Park in the Lecture Hall (room… Continue reading You’re Not Some Kind of Squirrel-Lover Are You?
Quantization of Books 5: Decay of Books
It’s been a while since I’ve done a fun with graphs post about the Amazon sales rank of How to Teach Physics to Your Dog, but that’s not because I’ve stopped tracking it. It’s getting to be enough data, though, that it’s worthwhile to look on a slightly coarser scale, so here’s the sales rank… Continue reading Quantization of Books 5: Decay of Books