A Delicious Fractal

romanesque cauliflower

A small Romanesque Cauliflower. (Click for larger view.)

Imagine my delight when I spotted this lovely piece of edible mathematics in the Hollywood Farmer’s Market this morning. The stall has several of them of many sizes (this was a very little one) and of several colours. Wonderful. If you don’t know what I mean when I talk about the mathematics, or use the term fractal, look it up. There are several things of note, among which are the wonderful spiral structures that you can […] Click to continue reading this post

Friday Night Wanderings

It was one of those Friday nights when I was in the mood to get out of the house, but not entirely sure what to get out to. “Out” was more important than “where”, you see. Wanted to do a bit of thinking and to relax and let the heavy week of too many meetings fall away from my shoulders.

In the end, I did a combination of things. After my mood, followed by my at charlie o’s. John Beasley, Nolan Shaheed, Dave Carpenter, Roy McCurdytrajectory, turned away from Pasadena (where I was planning to see Persepolis, as was my original plan – I’ll do it later… really want to see that film) at about 10:30pm I arrived in the Valley and hung out at Charlie O’s which is one of the more happening of the neighbourhoody jazz clubs in LA. (Sadly, in this context, “happening” by LA late night standards means that there’s more than about nine people present.)

There’s always something on each night and you can just walk in and sit at the bar to […] Click to continue reading this post

Equivalence

equivalence principle

Well, Tuesday was a big day in class. We reached a landmark – the introduction of one of my very favourite thoughts of the 20th Century: the Equivalence Principle. This is the realization of Einstein’s that there’s something profoundly odd about Newtonian mechanics and Newtonian gravity that hints at something deeper.

Quick reminder from high school (just two formulae, please bear with me): You know […] Click to continue reading this post

Bookcases

While the wonderful downpour carries on outside (the whole of Southern California is in the grips of a powerful storm), I’ll continue with the discussion of the re-invigoration of the study that I started a short while ago

study project - plane
(One of my all-time favourite wood-working tools. The good old-fashioned plane. Planing a bit of wood is jolly good therapy too.)

One of the main things I envisioned, and put into my sketches, was lots of space for books. Lots. I wanted big bookcases that fit the room, and so I planned a simple but robust design that stretched them eight feet from the floor to the ceiling. Of course, I wanted to make them myself – Building them myself would be more fun and much […] Click to continue reading this post

Categorically Not! – Science Goes Hollywood

Reza Aslan at Categorically Not!The next Categorically Not! is on Sunday January 27th (upcoming). The Categorically Not! series of events that are held at the Santa Monica Art Studios, (with occasional exceptions). It’s a series – started and run by science writer K. C. Cole Reza Aslan at Categorically Not! – of fun and informative conversations deliberately ignoring the traditional boundaries between art, science, humanities, and other subjects. I strongly encourage you to come to them if you’re in the area.

Here is the website that describes past ones, and upcoming ones. See also the links at the end of the post for some announcements and descriptions (and even video) of previous events. (Above right and left: Reza Aslan speaking on the origin of various ideas in Religion at the event entitled “Beginnings” on 16th December, 2007. Click right one for larger view.)

The theme this month is Science Goes Hollywood. Here’s the description from K C Cole:

Despite our prejudices to the contrary, Hollywood and Science have a lot to say to each other. Take special effects: Nothing Disney dreams up can […] Click to continue reading this post

Put Yourself In Their Shoes

alan alda and kc cole

Excellent evening on Wednesday night. As I expected, KC worked her magic and steered the conversation in many interesting directions, with Alan Alda turning out to be – not unexpectedly – quite the character. I suspect that it was recorded (on video) and so I will update this post or do a later post with a pointer to it later. Alda was swamped by people buying his book and getting is signed and so forth at the reception. It was great to see such a good attendance at this Visions and Voices event all about science and the arts – very much in the spirit of what this is all supposed to be about.

  alan alda and kc cole  alan alda and kc cole  alan alda and kc cole

Among the many things of note that were said, one thing I liked a lot was the telling by […] Click to continue reading this post

Lecture One

lecture notes

So it is that time. A new semester is upon me, and a totally new course to deliver. Today was my first day back on campus after the break (at least during a regular working day).

Sunday saw me sitting down (in the newly completed study) thinking about how I was going to structure the course. This usually has me sitting with the textbook, a pen, a hand drawn calendar on a big sheet of paper, and a frown on my face trying to figure out roughly what topics I will cover, how many lectures I will devote to each, how many class worksheets (see earlier post) I might have, when the midterms will be, and so forth.

What I am teaching? Why, only one of my most favourite topics to teach in the entire […] Click to continue reading this post

Alan Alda Chats With KC Cole

kc colealan alda scientific american frontiersTomorrow afternoon at 4:00pm there’s be an interesting conversation on campus for sure. It’ll be between the science writer and journalist KC Cole and the actor Alan Alda. He’s such an interesting person, and (among other things) currently presents Scientific American Frontiers.

KC’s always so good at steering these conversations, so while I’ve no idea […] Click to continue reading this post

In Which I Fail Physics 101…

… but pass it on a retake!

While quickly building an ad hoc washing line pulley assembly from a bag of hooks, eyes, and pulleys, and a 2×4, I put this together at first (blotted out some background for privacy of myself and neighbours – click for larger view):

bad design

Huh. Does not want to hang level. Why? A tenth of a second after the thought, I burst out laughing loudly at my error. Ironic since I love teaching about pulleys in basic physics, and for some reason students are scared of pulleys. (Not as scared as they are of torque (why?), but scared nonetheless. I try to help them overcome those fears.) I made an obvious mistake. (Do you see it?)
[…] Click to continue reading this post