This is really about statistics, but this is such a fundamental idea, I wanted to write about it and link to these fantastic videos. It can be used to test the effectiveness of a technology, so I'm posting it to Technology Tuesday (TT).
My daughter's high school honors Chemistry class also started with this lesson, but using pennies. My Berkeley honors Chemistry class's laboratory portion also started with this lesson and pennies. Remember when I took PH207x and wrote about the experience? You can now take the archived course and watch these videos in context.
Iris said that she wasn't good at Chemistry because she had difficulty with this lab. Her teacher says that this is a very difficult concept and Iris understood it better than any other kid in the class. Still, it takes a few times for this lesson to sink in and it helps to revisit it periodically and to see different applications of the concept.
I'm also hoping that my daughter reads these posts and watches them. The flabrats are sooo cute--internet meme cute. Perhaps we can start an internet meme using flabrats?
The first video introduces flabrats, lab rats fed a diet that makes them much heavier than your average labrat.
What happens when a lab rat gets loose in the building? Is it a flabrat or a labrat from another lab? How do you classify when you don't know the true answer? With statistics!
I'm older than my boss. and I think I gave away my age. While he was teaching me, he would say bsub and my fingers would automatically type qsub.
qsub is the command to submit a batch job to Cray supercomputers. bsub is the command for IBM and Linux supercomputers. If you look carefully at Wandering Scientists photograph above, you can read that these Cray-1As were decommissioned in 1989. I moved to Boulder for the first time (for a PhD program) in 1988.
Hmm, I think I also used later generations of Crays. Yeah, I could be younger... That's my story and I'm sticking to it. ;-)
Whether its source is a thunderstorm, an alpine waterfall or the water-cooled chillers in the Cray-1A, the sound of Colorado is the roar of falling water.
I took a 360 degree movie of the view from the westernmost bridge of the Boulder creek bike path. It was easier this time. I hope this reflects better physical conditioning.
The leaves are dropping and the fall colors are past their peak here. The water is low. But I do love to watch the light shimmer off the top of the water and listen to the water and the wind from this spot. I can do without the roar of traffic. ;-)
Oh, and this is drying on my bedroom floor. I am way behind in knit blogging, so stay tuned.
Have you seen the workspace series in the NYT? Previously, I'd seen the series about fashion designers. I'm really interested in behind the scene work so today's story about Beverly Bell, manager of color and quality standards for textiles at Pantone fascinated me. Go read Where the Spectrum is Sliced and Diced.
How cool is this table-top spectrophotometer? In my dream home, I'd have room for one. Hmm, I'd also like to have both a table-top DNA sequencer and a replicator while I am dreaming.
Bad Dad is a spectroscopist. We initially met across a laser table*. We would feel right at home if our kitchen looked like a lab where the most colorful things are the food.
* Although we used a low-power laser to study the ions, we used a 10,000 volt power supply to generate the plasma containing the ions of interest. There was literally electricity in the air when we met.
In other news, the condo search is not going well. If you are selling a condo in S, W or E Boulder near public transit lines and/or the bike path, can you contact me?
I am way behind on my sewing and knitting blogging. Remember the fabric I bought at Elfriede's on my Errand Adventure? Well, 3/4 of a yard of this luscious pima cotton twill (bolt says made in Italy) became another Vogue 8392.
I picked this fabric because it had more body and was less sheer than most cotton shirtings. However, I still lined the front with cotton/rayon voile. Can you tell the slight difference in sheerness between the lined front and the unlined back?
I purchased the fabric on the errand adventure of July 26. I took the finished photos of the top on August 23. That's less than a one month turnaround for new fabric! In contrast, the gray cotton/linen of the first iteration of Vogue 8392 marinated in stash for over 20 years.
Notice the absence of drag lines in the upper chest area when compared to Vogue 8392 Version 2. For that one, I found the top too tight under the arm so I trimmed a little bit away from the bottom of the armhole. Even then, I was not happy with pulling in the upper chest and the drag lines.
Hmmm. I compared the shoulder slope to Simplicity and Burda top patterns, which fit me better. What do you know, the shoulder slope is more pronounced in this Vogue top. I flattened out the shoulder slope (making the shoulders more square) and that solved all three fitting problems!
I know that a white top is not terribly exciting. I wish you could reach through your monitor and feel the luscious fabric. (The mystery voile I picked up at SAS is also incredibly soft and might contain silk and/or rayon.)
BTW, Elfriede still has about a blouse/shirt length of this shirt-weight cotton twill left and she can order another bolt. $14 a yard, 58" wide. It's not among the fabrics featured on Elfriede's online store, but just describe the fabric to her or her staff and they will ship it out to you.
Living in two states, I'm not sure if playing tourist in LA counts as a staycation. Bad Dad and I toured LACMA on Saturday and Watts Towers on Sunday while Iris tackled her mountain of past due homework.
I finally got my act together last Saturday and took my bike over to my local bike shop to use their pump. I also lubed the chain and took it out for a little test spin. Somehow, the test spin took me to the intersection of Table Mesa Drive and Vassar, about where the federal land starts. Hmm, if my ankles and legs are up for it, perhaps I should try something more ambitious on Sunday?
In-town fall colors.
Once again, I combined recreational riding with errand-running. I took a spur out to the western end of the Boulder creek path for the extra climbing challenge. I do miss our old neighborhood.
The Sunday route.
I emailed the route to Bad Dad and he replied that I'll be riding to Gold Hill next. Hmm, anyone want to join me?