Light Seen Down Under?

compact fluorescent bulbincandescent bulbI’ve been meaning to post about this for a few days*. It has since made it to rather high visibility in the news, I’m pleased to see, generating a lot of interesting discussion. The Australians (another nation not part of the original Kyoto agreement, notably) have pushed ahead on the issue of trying to legislatively encourage (shall we say) the use of compact fluorescent light bulbs over the more wasteful traditional incandescent bulbs.

You’ll recall my posting about this idea not long ago, in the context of proposed California legislation (so yes, I used the same images in the same way). Now, I’ll admit that I was thinking of that as a test case, and when things are ironed out into a workable legislation there one would imagine the model being rolled out to the rest of the world to adopt in their own fashion. I did not expect an entire country to adopt it so soon and at such a rate (they propose to stop sales of incandescents by 2010!).

We had a lot of discussion in that earlier thread about the pros and cons of this. Commenter IrrationalPoint (IP), for example, seems convinced that this represents a serious access problem for people who respond less favourably to the new lights. Such legislation is therefore discriminatory. My response to that was in several parts. The first is that I was not convinced that the cited flicker problems were really problems that referred to the new bulbs. They don’t work like the old nasty fluorescents we remember from years back, or that are still to be found in a lot of public spaces. Their flicker rate is up at tens of KHz, not the 60 Hz of old. IP (and one or two others) then suggested that the issues were with the spectrum. My response there was that the spectrum is quite a bit different from a lot fo the old lights, and where some discomfort might arise with the new ones, this is possibly only a problem for some if direct lighting from the light bulb is used. (I personally find direct light from incandescents pretty disturbing in a lot of cases too.) Why not use the bulbs in conjunction with a simple filter or other decorative fixture that can modify the light to your tastes?

But I am keeping an open mind on this. Perhaps I’m just wrong, and the whole idea of banning incandescents is unworkable and insensitive, but I am not convinced that work cannot be done to make sure that it works well for all concerned.

One of the biggest problems with the discussion is that nobody could point to good […] Click to continue reading this post

That Feeling

It is on the list of my top five all-time favourite feelings. But I know of no word for it in English that properly captures it. This is strange, since so much of our society relies on things that probably came about in accompaniment with this feeling. I’m sure you know what I’m talking about. Sometimes it come on so strongly that it feels like a switch has been flicked inside my head, with an almost audible “click”, often accompanied by a smile, an oral exclamation, or even a moan. Why can I not think of a word for it? Perhaps my vocabulary is failing me, but if there is not such a word, then we should set about forging a new one, since it is so important.

What am I talking about? […] Click to continue reading this post

Mars Attracts!

mars water rocksThere’s a nice story about new photographic evidence from the Mars Reconnaissance Orbiter for water having flowed on Mars. It is not really as dramatic as the photographs of late last year, but it is still an important piece of the puzzle overall (so do read about it), if harder to sell to the public as a “stop-the-press!” type of story. So here’s how three different news agencies tried to bring you in:

  • The BBC: Rocks reveal Mars’ watery past

    Not bad. The layering and colour gradations seen are is not direct evidence of water, of course. It could have been some other fluid flow, but…ok.

Next, we have: Click to continue reading this post

Point of View, I

amy parishTomorrow sees the next in the series of events here on the USC campus that science writer KC Cole and I have arranged. They’re in the style of the Categorically Not! events I tell you about from time to time (held each month over at the Santa Monica Art Studios) but are over on the USC campus instead, amy wilentzas part of the Provost’s Visions and Voices events. You can read more in the links at the end of this post.

The theme is “Point of View”, and we’ll have an anthropologist, a journalist, and a film maker each give their take on the topic. Here’s an extract from KC’s poster about tomorrow’s event (held at 7:00pm at the Gin Wong Conference Center here on the USC campus): […] Click to continue reading this post

Fresh Air From Gore

al gore by eric leeAs you may know, Al Gore’s movie “An Inconvenient Truth” has been nominated for an Oscar. If you want to hear more from the man himself (see also his remarks in the previous post), here’s an interview with him on NPR’s Fresh Air. It first aired last year, but it is very current. It’s so good to hear a politician speak so intelligently on these matters

You know, the last few weeks […] Click to continue reading this post

Branson Adds Pickle

AP photo of Branson and GoreCalling all scientists and engineers. You’ll get a $25 million prize from Virgin’s Richard Branson if you find a way to extract greenhouse gases from the atmosphere. Get to work!

Continuing his admirable campaign to do more useful things with his money instead of engaging in the (let’s face it) mostly silly stunts that used to characterize news stories about him, Richard Branson announced his new prize today in London (in the company of Al Gore) People are indeed working on this sort of thing, in case you’re wondering (see a post I did earlier, for example).

No, this is not a replacement for increasing our efforts to change our habits […] Click to continue reading this post

Triton Talk

The title of Monday’s colloquium was “The Cryogenic World of Triton”, and the speaker was Gary Peterson of the Department of Geological Sciences, San Diego State University. Here he is in action:

gary Peterson

The talk was very qualitative. Perhaps at times too qualitative for a lot of the Physicist audience, I’ve gathered from comments, but everyone agreed that it was still very interesting. Some of the qualitative aspects were necessary, since there’s not much data available for the sorts of things he wanted to talk about. So he was extrapolating […] Click to continue reading this post

Space Opera

Well, I tried to avoid blogging about this, starting yesterday since I was really annoyed that its initial appearance as a story was in the Science section of a number of organizations, and it has nothing whatsoever to do with science. But now that it has arrived in the more general news sections of some publications (see a nice Independent UK article here, for example), I am happier to talk about it, and also to briefly remark upon any tentative connection with science that might be there.

The case is the one concerning the arrest of astronaut Lisa Marie Nowak on what has now been alleged to be attempted first-degree murder. (It stated out as mere vehicle burglary, battery, and destruction of evidence, but was later upgraded.) Basically, in case you’ve not heard, Ms Nowak drove 950 miles from Texas to Florida to stalk and […] Click to continue reading this post

How Many Legislators Does it Take to Change a Lightbulb?

This is a joke (the title) that works rather well, while being a serious issue as well. It’s all about trying to reduce our energy waste here in California, and contribute to the commitment to reduce greenhouse gas emissions. The idea is to change from the garden variety incandescent bulbs … Click to continue reading this post

Philosophia Naturalis #6

the brainI just learned that the blog carnival Philosophia Naturalis #6 is underway. It is hosted at Science and Reason. Several city blocks have been shut down to make room for the revelry you get at carnivals.

The monthly collection of recent posts on physics and related topics from around the blog world is very good, and I bet that there are several that will catch your eye. Go and look!

Don’t forget to ask the Brain (click right) a question!

-cvj Click to continue reading this post

Sabine Hossenfelder: My Inspiration

Sabine HossenfelderToday, a guest post. I’m excited, because it’s from one of my favourite bloggers, Sabine Hossenfelder, or “Bee” as you may know her from her comments here, and of course her blog Backreaction.

Bee giving a guest post here on Asymptotia originated in a suggestion I made in the comments of an earlier post of mine. Bee had asked me to do a post on her blog as part of her excellent series of guest posts about what made her guest choose to go into physics. Pressed for time, and not sure whether I’d really have anything new or interesting to say about myself, I stalled for time (I thought) by saying I’d do it in exchange for her doing a post here on a similar subject. She rapidly came up with the post. And of course it’s a great one. I’m so on the spot now.

Anyway, here’s Bee! -cvj
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I just sat down with the best intention to write a lengthy blah on Clifford’s question what inspires me. Now that I sit here, hands above the keyboard, I am facing a problem. It’s not that the question is too difficult, it’s too easy to answer. I get inspiration everywhere. Reading books, seeing movies, taking a walk – ah yes, also from scrolling through blogs. Most of all by talking to my friends and colleagues. The problem is now that I’m too inspired not to shamelessly use the opportunity of writing a guest post for Clifford 😉 So let me redirect the question to your opportunity to use your inspiration.

Had you been born some thousand years ago, your life […] Click to continue reading this post

Hubble Trouble

hubble graphicAs you can tell by putting “hubble” into the blog’s search engine on the right, the Hubble Space Telescope has been a strikingly successful eye on what’s going on (and what went on) in the universe, and very powerful tool in lots of research. A lot of that research is done with the instrument called the Advanced Camera for Surveys (ACS), which have been the instrument in most heavy demand by researchers since it went online in 2002 (Hubble was launched much earlier, in 1990 of course). The instrument stopped working a few days ago (see e.g. stories here and here, [update: and especially here]), and is not expected to become operational again without direct intervention. Given that the Hubble orbits some 360 miles above the earth, this is not an easy thing to do.

There are other instruments on board too, but the loss of use of this one is a heavy […] Click to continue reading this post