Uncertain Dots
drorzel | December 4, 2014After a loooong hiatus due to incompatible work schedules, Rhett and I are back with our intermittent hangout series. We talk about space programs, the engineering mindset, and cool stuff you can do with liquid nitrogen.
Amazingly, we didn't actually talk about our current (well, recently-completed, in my case) classes. That might be a first for Uncertain Dots...
drorzel | October 25, 2014I got the time for the regular hangout wrong, and then we had some weird computer difficulties, so we only had ten minutes for Uncertain Dots this week. Which was enough time for me to say disparaging things about comic book movies, so, you know, if that interests you...
Here's the making of Interstellar story about Kip Thorne.
Here's the Avengers 2 trailer.
Also, a program note: I will be at MASS MoCA tonight talking about Particle Fever, if you'd like to hear me talk about real physics on film, or just take issue with my slagging off comic-book movies in person...
drorzel | October 10, 2014If you like arbitrary numerical signifiers, this is the point where we can start to talk about plural dozens of Uncertain Dots hangouts. As usual, Rhett and I chat about a wide range of stuff, including the way we always say we're going to recruit a guest to join us, and then forget to do anything about that.
The video:
Other topics include how it's important to rip up your class notes every so often, the pros and cons of lab handouts/ lab manuals, and of course this week's Nobel Prize in Physics for blue LED's (shameless self-linkage).
I'm crushingly busy right now, largely because I had no…
drorzel | October 3, 2014Our semi-regular video hangout returns. In this episode, I'm wearing a tie, because I gave the department colloquium this week, and for psychological reasons I always dress up a bit to give talks. This was recorded under an hour after my talk, which probably explains why I'm a little more punchy than usual... I'm not sure what Rhett's excuse is.
Topics include a bunch of failed attempts to walk back an early cheap shot at computer scientists, where Rhett and I rank in terms of Google searches for our first names-- I have to go six pages deep to find myself (I'm on the first page of "Orzel"…
drorzel | September 19, 2014After a long absence due to travel (some of which is discussed), Uncertain dots returns!
Rhett and I talk about recent travels, how people going into internet-based physics outreach these days would probably do better to make videos than blog, physics in science fiction, celestial navigation, and as always, our current courses.
Some links:
-- Our Eratosthenes measurement from 2012.
-- Divided by Infinity, the best Many-Worlds story ever.
-- Ted Chiang's "Story of Your Life" isn't legitimately available online, but there's a spoilery Wikipedia page about it.
-- An old post where I talk about…
drorzel | August 7, 2014Our little hangout thing is now old enough to drink, in episode-years anyway, and to celebrate, we finally figured out how to get live audience feedback during the hangout. Which takes the first couple of minutes of the video, because we're highly trained professional scientists.
Once we got that sorted, we talked about a bunch of stuff, including but not limited to crazy space drives, the history of major concepts in physics, space probes and asteroids, and "native advertising" and how it relates to blog history. Some links:
-- My post on the impossible space drive, which has links to…
drorzel | July 30, 2014In which Rhett and I talk about awful academic computing systems, Worldcon, our Wikipedia pages, and AAPT meeting envy.
Some links:
-- Rhett's Wikipedia entry
-- My Wikipedia entry
-- The 2014 AAPT Summer Meeting
-- LonCon 3, this year's Worldcon
-- My puzzling Worldcon schedule
We have some ideas for what to do next time, when our little hangout is old enough to drink, but you need to watch all the way to the end to hear those.
drorzel | July 22, 2014In which our hangout turns nineteen; we may need to look into a special guest for the 20th, or something. Or maybe save guest stars for the one after that, when it can drink.
Anyway, Rhett and I chat about grading, lab reports, why Excel sucks, and an online experiment that we really ought to do if we only had the time.
Some links:
-- Why Does Excel Suck So Much?, and "Line Plot" is Never the Right Choice. Perennial favorites on the blog.
-- How Do I Kill the Squirrels Who Are Eating My Car?, another constant source of a small amount of traffic.
-- Rhett's elevator video post.
-- My soccer…
drorzel | July 8, 2014In which our series of Google hangouts becomes old enough to vote and buy cigarettes-- but not drink!
Miscellaneous things mentioned in this:
-- My forthcoming book at Amazon and Barnes and Noble. I turned in the copyedits and figures a week or so ago, and cashed an advance check today, so it's definitely going to happen. Pre-order now, because Hachette bought my publisher, so you don't know how long those buttons will be there.
-- My appearance on the Read Science! hangout.
-- A commentary piece I did for Physics World on the OPERA neutrino story. I wasn't paid for this. (You probably need…
drorzel | June 26, 2014After a bit of a hiatus because of scheduling issues, Rhett and I are back to talk about... stuff. Mostly summer classes, World Cup soccer, and Twitter. Also, how we've each gotten a blog comment from Neil deGrasse Tyson.
Miscellaneous links:
-- My long-ago book review and Rhett's more recent complaint about Cosmos, where we each had a brush with scientific celebrity.
-- My silly cat tweet that's generated a huge amount of traffic:
Busy day at Schroedinger Industries... RT @EmrgencyKittens: How to organize your cats. pic.twitter.com/z3QS0fnSdL
— Chad Orzel (@orzelc) June 24, 2014
-- Rhett's…
drorzel | May 28, 2014For the sixteenth episode of Uncertain Dots, we decided to bring in some guests, Andy Rundquist and Kelly O'Shea for a conversation about standards-based grading. This came up because I'm playing around with this using the same tiered scheme I talked about back in January.
This was a fun conversation, and some interesting ideas came up. I remain kind of boggled by the amount of oral exam time Andy puts in, and I find the notion of goal-less problems intriguing, but I'm not sure I could implement it here.
Some links:
Kelly on goal-less problems
Direct Measurement Video
So, anyway, that was…
drorzel | May 21, 2014Rhett and I did the 15th episode of our Uncertain Dots hangout yesterday, commenting on a discussion started by Casey Rutherford about what we would like students coming into college physics to know. We had a slight difference of opinion about physics content, but agreed about the importance of algebra (which is like sunscreen).
I had meant to post this last night, but SteelyKid has made friends with the kids at one of the houses behind ours, so I spent a good chunk of the evening making sure she didn't climb over the fence into their yard. So, instead, you get to wake up with our physics…
drorzel | May 13, 2014Another week, another hangout with Rhett. In which we actually fielded a couple of questions from readers on Twitter, about the reason for inertia and a kind of meta-question. More audience questions would, of course, be welcome.
A couple of links to things that came up:
Mach's Principle, a past attempt to explain the origin of inertia.
Newton's famous refusal to explain gravity, "Hypotheses non fingo." Sir Isaac was second to none in his mastery of snotty condescension.
Veritasium's buoyancy quiz.
Aatish Bhatia's post about a new meta-analysis of "active learning" studies showing that…
drorzel | May 6, 2014We had a couple of weeks of unplanned hiatus due to sick kids and day care closures, so the superstitious among you might've thought we would never get to the 13th episode of Encertain Dots. Rhett and I are scientists, though, so we powered through:
Given the time of year, this is mostly about end-of-academic-year stuff: exams, intro course curricula, and undergrad research. The undergraduate research symposium I mention a few times is the Steinmetz Symposium, a Union tradition that will happen for the 24th time this Friday. This cancels a day of classes, which is a little annoying, but it's…
drorzel | April 16, 2014The last couple of days have been ridiculously hectic, but Rhett and I did manage to record another episode of Uncertain Dots, our twelfth:
This time out, we talk about labs, undergrad research, kids doing chores, weather, student course evaluations, and I didn't really rant about superheroes. Relevant to the weather thing, I offer the "featured image" up top, showing last night's snow at Chateau Steelypips. Spring in New England, baby!
drorzel | April 8, 2014We took a week off last week because Rhett was away on a Secret Mission, but we're back and better than ever this week. More uncertain! More dotty! Or something!
Topics for this week include oblique references to Rhett's mission, some discussion of the Geocentric Janeway debacle, good and bad places to have a conference, why you shouldn't eat conference center food, why more physicists aren't on Twitter, and blogger gatherings.
Here's a link to the Stealth Creationists and Illinois Nazis story I alluded to. It's from 2007, after the blogging dinosaurs but before the blogging armored sloths.
drorzel | March 25, 2014In which we hit double digits, in base ten, anyway. This was mostly about teaching stuff, because I'm between terms, in that weird reflect-on-the-last term/ prep-for-the-next-term space. With a digression about training wheels, which are good as an analogy, but less good for actually learning to ride a bike...
drorzel | March 18, 2014In which Rhett and I chat about the hot new discovery of primordial gravitational waves (maybe) very briefly before segueing into talking about LIGO, and Cosmos, and why "theory" is a terrible word, and the memorization of constants, and standardized tests, and time-lapse videos. You know, as one does.
Miscellaneous items:
-- I'm a little pixellated, as if I'm concealing my identity. I forgot to shut Kate's computer down, so it may have been doing online backups that chewed up bandwidth.
-- The von Neumann quote I butcher at one point is "The sciences do not try to explain, they hardly even…