Mar 052009
 

Today I went out to do some grocery and hardware shopping. I found a few odd things:

1) At the Smith & Edwards, a big-ass hardware/suplus/outdoor/clothing store, there were some changes in the displays. Prominantly displayed up front were books on the Constitution, the Founding Fathers, the coming threat of socialism, and survivalism. In the gun department, .45 caliber ammo was not to be had. In fact most pistol ammo was greatly depleted. Camping and emergency rations were selling at a brisk pace. Numerous people in the gun department looking at pistols.

2) At the Ace Hardware, most of the pistol ammo was gone, including all the .45 ammo. Several people in the gun department looking at pistols; overheard a staffer talking to another customer on the phone, telling them that whatever gun he was talking about had a waiting list.
3) The Kent’s supermarket had stocked up on 9mm ammo, but were sold out of .45. Also Kents, which formerly had sold pretty much the usual run of the mill processed foodchows, now has large new displays set up for long-term-storable emergency food, sold by the 5-gallon bucket.

Obviously, the optimism brought on by Teh One is infectious.

 Posted by at 2:01 am
Mar 022009
 

Recently released is this view of “Unusual Spiral NGC 4921 in the Coma Galaxy Cluster,” taken by the Hubble Space Telescope. This view does not do it justice:

However, you can download far better resolution views here.

As with many Hubble deep views, just about everything you see in the image is millions to billions of light years away. With the exception of perhaps a dozen or so Milky Way Galaxy stars, it looks like NGC 4921 is the closest object… at a mere 320 million light years distance. Everything else is far beyond, including other spiral galaxies visible through NGC 4921. In essense, every little smudge here represents a galaxy with perhaps a hundred billion suns. Each sun perhaps has a planetary system, with perhaps an abode of life somewhere orbiting it. Magnify those suns and their life-bearing worlds by the sheer number of galaxies visible is just this one tiny, tiny little fragment of the sky. The full view covers about one and a half arc-minutes of sky… for comparison, the moon is 30 arc-minutes in apparent diameter.

The universe as revealed by science is more full of wonders than the most complex theology, more beautiful by far than the grandest cathedral.

Reality

Is

Awesome.

 Posted by at 3:45 am
Mar 012009
 

The 1938 Orson Wells radio broadcast of “War of the Worlds” is available for download as an MP3 here. If you’ve never heard it, I recommend it. Listen to the radio broadcast that convinced a good portion of the US that Martians were actually invading.

 Posted by at 11:21 pm
Mar 012009
 

Here’s pretty much the sort of orbit diagram you don’t want to see:

dd45.jpg

In case it’s not obvious, this shows Earth and the asteroid 2009 DD45 so close together that they cannot be distinguished. Astronomically speaking, this is Close.

From arksky.org, there’s this:

An exciting very close pass of a Near Earth Asteroid for observers in the northern
hemisphere awaits Monday and Tuesday nights; NEO 2009 DD45 will skim within 0.0003 AU of
the earth during the early evening hours of March 1 (2nd UT) and will attain a brightness
of at least mag. 10.8, perhaps brighter.This object is moving incredibly fast, so charts and preparations will be necessary to
even keep up with it telescopically as it moves rapidly north and east each hour.

the asteroid is assumed to be about 60 meters across, so it is a small one; the close pass will be between 28,000 and 48,000 miles from earth early on Monday, but the asteroid will still be very, very close and bright by Monday evening when it gets dark. The orbit parameters have not been changed since the original confirmation was announced, so as far as a close point to earth, that is difficult. Although this is classed as an “Intruder”, there is very little chance of earth impact this time.

Unless the measurements are off by an unbelievable amount, the asteroid will miss us tonight. And even if it did hit, at 60 meters diameter it’d be a relatively minor hit… according to the Earth Impact Effects Program, if a 60-meter chunk of iron hit the Earth at 17 km/sec, the kinetic energy would be the equivalent of about 31 megatons. Enough to wipe out a city, to be sure; crater would be on the order of a mile in size. Basically, this:

As an odd aside: I decided to look up Meteor Crater on Google Maps, linked here. Oddly, the surrounding areas are available at high resolution… but the crater istelf? Crap resolution. Why would the crater be effectively censored???

 Posted by at 10:58 pm
Mar 012009
 

On display at the New England Air Museum in Connecticut is the rather sad carcass of the Burnelli CBY-3 prototype. This 1944 cargo transport used the “lifting fuselage principle, as most of Burnellis designs did, to increase lift. The aircraft on display has obviously seen better days. The tailbooms and horizontal stabilizer have been removed (at least they were when I took these photos in late 2007), and are stored within the fuselage.

pdr_0279a.jpgpdr_0265a.jpgpdr_0256.jpgpdr_0225.jpgpdr_0223.jpg

 Posted by at 6:47 pm
Mar 012009
 

I had not heard of this archaeological site until I read this bit of breathless journalism. It appears to be a temple complex built about 10,000 years ago in eastern Turkey, with carefully and artistically carved megaliths. The dating – based on radiocarbon testing – would indicate that the builders were pre-agricultural hunter/gatherers. Additionally, it seems that the site was deliberately buried around 8000 years ago, and only re-discovered in 1964, with the first real digs in the 1990’s. The site pre-dates iron, bronze and even ceramics.

No writing has so far been found, just “art.” The layout is reminiscent of Stonehenge, but substantially more complex and intricate… as well as thousands of years earlier. The author of the Daily Mail article makes the claim that the switch from hunter/gatherers to agriculture marked a major shift in humanity… and a shift that was not exactly entirely positive. Before agriculture, that region was apparently a bit of a paradise-on-Earth (thus the hypothesis that the region around Gobekli Tepe was the source of the Eden myth), where people survived with minimal effort; but once agriculture took over, people got smaller due to lower protein grain diets, were more suseptible to famines, and life just in general began to well and truly suck… thus leading to the need to propitiate angry, angry gods by sacrificing human and all other manner of horrible deeds. The local ecosystem collapsed due to a combination of changes in the global environment (the last Ice Age still within recent memory at the time), as well as farming practices that involved chopping down the forests and ruining the soil, leading to the rather dry and dead-ish environment seen today. The hypothesis thus is that humanity was cast out of paradise, and in anger or fear the complex was buried, and semi-modern-ish religions with fear and blood and whatnot were born… and the vague, dim memory of what was lost was retained, forming the nucleus of the Eden tale.

Not being an archaeologist, or terribly well versed in the field, I can’t say whether the claims are accurate, but they make a compelling tale. And, I’m sure entirely co-incidentally, that same author has a *novel* coming out about Gobekli Tepe, so take it for what it’s worth.

Regardless of the claims of a lost Golden Age – and how many times has that claim been made – if the dating tests are even close to accurate, you have to wonder “what the hell happened?” Ten thousand years ago there were people casually building incredible temple complexes… and then everything seemed to just collapse, and people didn’t start building again for another 5,000+ years. What happened to humans in that lost “dark age?” Did our ability or willingness to create enduring structures disappear? Was Gobekli Tepe just some unusual blip on the road to where we are, or was it the first and last gasp of some other course of human development? Did the failure of the environemnt in eastern Turkey *really* mess up the human psyche that badly?
Some images from around the web (click ’em for the source links):

A computer reconstruction:

A statue. At first glance, a rather bland and featureless statue. But it would seem that this is the world’s oldest life-size statue of a human. And a hearty “bravo” to the artist for managing to make such a successfully creepy haunting image…

More on Wikipedia.

 Posted by at 6:33 pm
Mar 012009
 

A few nights back I tried again to take some photos through my telescope. As always, proper focus seemed to be an unattainable goal. Oh, well. Anyway, here are photos of the moon & Venus, the Pleiades, and the Orion nebula.

img_1339.jpg

pleiades1.jpg

orion6.jpg

 Posted by at 5:41 pm