Curious about Curiosity?

So, if like many people, you are excited about the (late) weekend landing of Curiosity (the roving Mars Science Laboratory) on Mars, and/or if you want to know more, Kenneth Chang has an article in the New York Times all about it here. (Image right is an artist’s impression done for NASA/JPL.) The sequence of operations that have to go right for Curiosity to, er, stick the landing* is quite amazing, and so let’s all wish them good luck. Have a […] Click to continue reading this post

Don’t Forget the Transit of Venus!

Hot on the heels of the annular eclipse of a few weeks ago, we’ve another giant body passing in front of the sun tomorrow. Venus! This time the giant body (roughly the same size as the earth…just a bit smaller) is much further away from us, and so is dwarfed by the sun. It’ll be a tiny dot on the disc of the sun that takes several hours to pass across. This’ll give you plenty of time to look. (In the US, for example, it’ll start at about 6:06pm EST and about 3:06pm PST…) You won’t get another chance (at least, not from earth…) until 2117, so have a go!

In fact, you’ll be doing something that is vital for modern astronomy right now – observing the effects of a planet on the light of its parent star as seen from afar. This is the principal method for detecting planets moving around distant stars, the “extra-solar” planets you hear so much about in the news from time to time. Here, we’re seeing it happening for a familiar planet around a familiar star. Although both objects are quite familiar, this transit is still worthwhile to study, since it helps planet hunters learn more about how such processes can help deduce things about the planet doing the transit. So study it many will, I’m sure.

You can just look at it for fun, but remember to be careful. Do not look directly at […] Click to continue reading this post

Solar Eclipse!

Don’t forget the annular solar eclipse on Sunday! You get get all the detail about it at the NASA eclipse site here. According to the site:

“An annular eclipse will be visible from a 240 to 300 kilometre-wide track that traverses eastern Asia, the northern Pacific Ocean and the western United States. A partial eclipse is seen within the much broader path of the Moon’s penumbral shadow, that includes much of Asia, the Pacific and the western 2/3 of North America”…

I’ve put a snap of the graphic they provided on the right for decoration, so you can go to the site for more detail and explanation. This includes precise times for your city, and so on and so forth. Be sure to exercise the usual precautions in viewing (do not look directly at the sun with your eyes, and certainly don’t look at it through any optical instruments… project the eclipse onto something else… there are many sources that can tell you more about that…)

Enjoy!

-cvj
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Happy Birthday Hubble!

It is the 22nd Anniversary of the launch of the Hubble space telescope today! As you know, this instrument has produced a wealth of scientific information over the years, as well as lots of wonderful pictures for everyone that broadened and deepened our sense of wonder about this remarkable universe we find ourselves in. The Hubble site is here.

Phil Plait has re-posted his 2010 post “Ten Things You Don’t Know About Hubble”, […] Click to continue reading this post

Lunar Eclipse!

For those out here in the West of the continent, there’ll be a lovely lunar eclipse tomorrow morning (I should have mentioned it before but it somehow missed my attention). It will be at its peak about dawn (about 6:00am), and so if you are an early riser, it should be a nice sight to greet you – especially since it is expected to be somewhat red in hue. Of course, look for the moon in the West, near to setting. Since it will be close to the horizon, it will look quite large as well.

The eclipse will actually be visible right across the Pacific too, and into Asia and Eastern Europe, but check local details for the specifics.

There are more details here*. I plan to get up and have a look… maybe we’ll all be watching it together!

Enjoy!

-cvj

*Thanks Shelley! Click to continue reading this post

Google Glimpses

Well, don’t forget the total lunar eclipse tonight! It is already starting… Apparently it will be the longest one for over ten years. It won’t be visible in North America, however, but google has provided a way to make sure you get your, er, lunatic desires to see the moon in earth shadow. For a start, there’s another excellent google doodle on their front page today (snapshot right) that allows you to slide the shadow over the moon to your heart’s desire. Furthermore, there’s a live feed of the eclipse on their YouTube channel, here.

Enjoy!

-cvj Click to continue reading this post

Go Visit JPL!

This weekend is the JPL Open House! You might recall from my visits there in the past (or, at least, my reports on them – see e.g. here) that it is a fun and informative time. I recommend it. It runs from 9:00am to 5:00pm today and tomorrow, and you can go along to see what’s up with various JPL/NASA missions, hear about future missions, learn the science and technology behind various equipment and the various science goals, and much more.

See the website here for more information.

Here’s a video I made two years ago (including a Mars Rover roving over children!!!):



I hope I can go today, but I’ve got rather a lot on, including trying to find some time […] Click to continue reading this post

Major Moon-Milk Opportunity!

Tomorrow’s full moon is going to be the closest to us in 18 years, apparently. It’s called a supermoon by some, and no doubt some will try to link it to many major events here on earth, both natural and man-made (if you’ll forgive the distinction). I won’t do a long post about this issue, but instead refer you to Phil, who is excellent on the science of this and related subjects.

What I will say instead is that all commentators seem to have missed that this is the best opportunity in years to gather moon-milk! Get out your ladders and buckets and go for it!

What am I talking about? At my last birthday I was given* a lovely collection of stories by Italo Calvino, and the first one is entitled “The Distance of the Moon”. It begins with a description of the fact that a long time ago the moon orbited much closer to the earth, as you may know, and then weaves a delightful story from there. The story involves reminiscences, by the narrator Qfwfq, about those good old days when the moon came so close that once a month (yes, I know) the earth’s inhabitants would take boats out onto the sea to the where the moon came close and climb up a ladder to its surface to gather the much-desired substance known as moon-milk. A lovely extract follows: […] Click to continue reading this post

Heroic

character_a_inkedStruggling for a post title, I went for a slight critique of the work I did on the character you’ve seen earlier*. She’s been grabbed from a panel showing her looking for a seat in a cafe where a conversation (about a physics issue) is to continue.

It is a large panel showing the layout of the cafe with all the people sitting and reading and talking and so forth, and she’s one of several small figures in it, so it is probably not that big a deal that she has somewhat heroic proportions here as compared to her more ordinary proportions in other panels.

Heroic here refers to the various choices of proportions you can give to figures, usually based on how many heads tall they are. You might have heard of people talking about how many heads tall a figure should be.

Well, there really is no “should be”, and different practitioners use different […] Click to continue reading this post

To Explore Strange New Worlds…

So you’ve probably heard the news, but just in case I thought I’d mention it here. The Kepler observatory, up there in orbit keeping an eye on things for us, has found a bumper crop of planets orbiting a sun-like star a mere 2000 or so light years away. It is amazing what you can see if you look closely. Every now and again the star’s brightness dips ever so slightly, and that tells you something has passed in front of it – another planet. Or in this case, once you’ve analyzed the pattern of dips, as the team of astronomers did, six planets!

These are not earths, although the headlines all over the news sure try to grab you in […] Click to continue reading this post

The Project – 1

It is midnight and I really should get to sleep in order to wake up and work some more on editing the final exam for my class so that it can go to the printer by noon. But I’ve got several pokes from people clamouring to find out what The Project actually is, and I promised yesterday I’d start to spill the beans. Thanks for the interest! I think I’d better get at least some of it out there or I’ll have an angry mob by morning! So here goes. I will drag out the draft I sketched yesterday and beat it into shape:

So, as you may have guessed, The Project, which I’ve been mentioning here since a post way back in February, is a writing project, but it is somewhat different from what you might expect. The bottom line is that I hope that at some point into future you will be able to purchase a copy of your own, and that you will find it instructive, exciting, and enjoyable. At least.

Yes, it is a book about science. However… Well, here’s the thing. Over many years, people (friends, colleagues, potential agents and publishers, blog readers, etc) have been asking me when I am going to write my book. You know, the popular-level book that every academic who is interested in the public understanding of their field (as you know I am from reading this blog) is expected will write at some point. To be honest, I have given it some thought over the years, and it has been something I figured I might do at some point. In fact, several different ideas have occurred to me over the years, and I may well implement some of them at some point.

But a major thought began to enter my mind well over ten years ago. In my field, there is a rather narrow range of models for the shape of such books, usually involving about 80% of it being a series of chapters covering all the standard introductory material (some relativity, some quantum mechanics, and so forth) for the lay reader, before culminating in a chapter or two of what the researcher really wants to tell them about: some aspect of their research. This is a fine model, and it is great that people continue to write such books, and I will no doubt use that model one day, but to be honest, I don’t think there is any urgency for me to add to the canon yet another one of those books. Moreover, if you line examples of that type of book up against each other, you see that the […] Click to continue reading this post