SteelyKid goes to day care at the Jewish Community Center, which is closed today and tomorrow for Rosh Hashanah. Here we see her calling all her friends on the phone in her play house to wish them a happy new year, and let Appa offer his own greetings: The two-day closing is, as you might… Continue reading Thursday Shana Tova Blogging 090910
Category: Pictures
SteelyKid’s Weekend Excursion
We had a Barfy Toddler Incident yesterday, making a mess of Kate’s spiffy new car seat, but that seems to have been a passing thing, perhaps caused by an excess of cranberry juice while on campus yesterday morning greeting new students. Thus, we went ahead with our plan to take SteelyKid to the zoo today:… Continue reading SteelyKid’s Weekend Excursion
Thursday Toddler Blogging 090210
For this week’s Toddler Blogging, SteelyKid demonstrates her mastery of bubble technology. Appa is not that impressed. Her other big new trick is bossing us around in great detail– she’ll put something on her fake grill, close the lid, turn the knobs, then say, “Daddy! No touch! Hot!” pointing at the grill, followed by a… Continue reading Thursday Toddler Blogging 090210
Ode to a Rubber Dinosaur
Rubber dino, you’re the one, You make bathtime lots of fun Rubber dino, I’m awfully fond of you Doo-doo doo-de-doo Rubber dino, fearsome roar, Good thing you’re a herbivore Rubber dino, I’m awfully fond of you doo-doo doo-de-doo Every day when I, get undressed next to the sink, I find a Little fella who’s, cute… Continue reading Ode to a Rubber Dinosaur
Backyard Fluid Dynamics Revisited
Back in July, I did a post looking at how the fountain in our ornamental backyard pond shoots higher when the level of the pond drops. I set up a simple model of the process, which worked surprisingly well, but I said at the time that I really needed more data to say whether that… Continue reading Backyard Fluid Dynamics Revisited
Camera Lens Questions
I am planning to buy a telephoto lens for my camera. From time to time, I want to take pictures of the various critters Emmy chases in the back yard, and that would be a whole lot easier if I didn’t need to get so close to them. And, of course, I strongly suspect there… Continue reading Camera Lens Questions
Thursday Toddler Blogging 081910
Many of SteelyKid’s first words have been transportation-related (“Truck! Vroom Vroom!”), which makes the four-level wooden parking garage she got from her Aunt Erin even more awesome. And it’s pretty awesome: As you can see, she grasped the idea almost immediately. That’s from last night, after we got it put together. Below the fold, you… Continue reading Thursday Toddler Blogging 081910
Thursday Toddler Blogging 081210
Now that she’s officially two years old, SteelyKid gets to sit in the big chairs: She also insisted on the forced-perspective thing to make her look even bigger compared to Appa. And the string cheese. She’s all about the string cheese.
What Do You Need to Make Cold Atoms? Part 2: Lasers and Optics
Following on yesterday’s discussion of the vacuum hardware needed for cooling atoms, let’s talk about the other main component of the apparatus: the optical system. The primary technique used for making cold atoms is laser cooling, and I’m sure it will come as no surprise that this requires lasers, and where there are lasers, there… Continue reading What Do You Need to Make Cold Atoms? Part 2: Lasers and Optics
What Do You Need to Make Cold Atoms? Part 1: Vacuum Hardware
Over in the reader request thread, Richard asks for experimental details: I’d be interested in (probably a series) of posts on how people practically actually do cold atoms experiments because I don’t really know. I needed to take some new publicity photos of the lab anyway, so this is a good excuse to bust out… Continue reading What Do You Need to Make Cold Atoms? Part 1: Vacuum Hardware