Desktop Earth
If you like satellite pictures of the Earth and the time of day…you can get them both with this cool little desktop program. It’s called Desktop Earth (get it here) and shows a satellite mosaic map of the world with the current time of day and time of year (updates every 5-10 min). If it’s the middle of the night where you live (what time zone your computer is set for) then it shows that part of the planet in the dark and with nightime lights…and vice-versa. It also has a setting for cloud cover. Althought the clouds are not real-time snapshots, they are only delayed by a few hours and, at a large scale, pretty accurate.
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Drumming and piano by a guy who plays neither
Imagining the 10th dimension
A good buddy found this website…it explains how the universe can have more dimensions than the four we are familiar with. It’s a little mind-bending but pretty cool.
Happy new year!
Angel Island
A couple weeks ago we went to Angel Island, which is the biggest island in the San Francisco Bay. It’s a great day trip…you take a ferry over from Fisherman’s Wharf in the morning, hike around for a few hours, and then take a ferry back in the late afternoon.
The photo above is from the southern flank of the island with downtown San Francisco in the background and Alcatraz in the middle ground.
Check out Angel Island State Park website for more info.
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Friday Field Foto #7: Stack of deep-water deposits
Here’s another shot of my field area in southern Chile. The more resistant cliff-forming rocks are mostly sandstone and the gray-brown slopes are shale. These sedimentary rocks were deposited on the sea floor about 65-70 million years ago (kind of around the time the dinosaurs became extinct). Good stuff.
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Under the sea
I’ve spent the better part of the last 6 years studying deep-marine sedimentation (how dirt from the land gets to the bottom of the ocean). One of the coolest things about this are images like the above. It is a perspective view looking north of onshore and offshore southern California. I’m constantly fascinated by the landscape on the sea floor….mountains, valleys, canyons, channels, plains. Some of those mountains are sticking up out of the water as islands. We have the surface of Mars mapped better than our own ocean floor. It’s like looking at another planet…I love it! Currently I’m studying Santa Monica Basin, which is towards the top of the image…the yellowish-greenish patch to the left of Los Angeles.
If you want to explore the world’s sea-floor topography, you can download this Java program that accesses online databases (kind of like GoogleEarth but for underwater). It’s called GeoMapApp, it’s a little clumsy and sluggish sometimes, but still pretty fun.
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Friday Field Foto #6: Sand-rich turbidite deposits
This is in the desert of west Texas…in the Delaware Mountains. I spent many weeks here when I was working on my master’s (2000-2003). Because of the school calendar, we had to go in the summer mostly. It was frickin’ hot! But a beautiful place, a lot of rock. The cool thing about this place is that each of those cliff-faces has the same layers of rock…so, we were able to map out how they changed in some detail.
Check out more photos of the Delawares here.
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Why does it have to be water?
Okay, I know…another Mars post.
But, earlier today the news agencies picked up on a story about features seen on Mars that may have been formed by liquid water. The image at right is zoomed in on one of these deposits. The lighter-colored material is being interpreted as possibly the result of flowing water.
Why does water need to be involved at all? In fact, why does liquid need to be involved? Depending on the material that makes up this steep slope, it could simply be a gravity failure of loose, granular material that flowed and created this deposit. Sand dunes do this all the time. What is the gravity like on Mars compared to Earth anyway….how might loose, granular material behave?
My point is that water is not necessarily required to produce this feature.
What’s worse is that once the words ‘water’ and ‘Mars’ are spoken in the same sentence, reporters and newspapers make giant leaps of inference and start talking about ‘life on Mars’.
Granted, I haven’t actually read the scientific report that is coming out….my guess is that the news is overstating what the authors may be implying in their work.
Friday Field Foto #5: Pygmy owl
Although we are usually looking at rocks, it’s impossible to not have encounters with wildlife while in the field. One morning while we were having breakfast at our campsite in southern Chile, this pygmy owl hung out on a tree branch near us for about 20 minutes. This little guy is about the size of your fist.
See more photos of mine from Patagonia here.
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The myth of the "opposing view"
“Condoms don’t belong in school and neither does Al Gore.”
I can’t resist commenting on this article…even if no one reads it…and even though I should be working right now. Below are excerpts from the report (click on link above to see original) and then my snide remarks.
At least this reporter lays it out from the start the kind of person we are dealing with. I have to give them some credit for that.
Please re-read the last sentence again. That’s right…”An Inconvenient Truth” does not sufficiently cover the details of the end times, which apparently gets even warmer. Hmmm….14,000 years old, what happened to 6,500 or whatever?
What an absolute coward. What kind of school board member is swayed by someone who says that not including the details of the ‘end times’ in a documentary about climate change is cockeyed?
Okay, here’s where we start to get to the good stuff. Again…props to the reporter for putting “opposing view” in quotes. This is where the general public, or at the very least school board members, need to stop and think for a moment. I would like to know the details of the credible and legitimate opposing view. What exactly are they opposing? The fact that the climate is changing or that Al Gore made a movie. What am I missing here.
Okay, I see…it’s a controversial issue. What exactly is under controversy? In fact there is no controversy regarding the science. Yes, of course, there are numerous ongoing debates about the intricacies and workings of the climate system…but that would not change the foundation of this movie. I’ll give them the benefit of the doubt…perhaps they are not saying that climate change itself is under question, but rather that human civilization is causing it.
Again…what exactly is a ‘global warming skeptic’? What are they skeptical about!?!? Why should students hear the opposing view? Should they start bringing in people that think the Earth is flat, or that the Earth is the center of the solar system, or that gravity does not exist? Oh wait…I think there’s some opposing views about who killed JFK or who masterminded 9/11 circulating too…I wonder if this school board president would allow that. That last sentence is ridiculous…this is a school board president?
Thank you (polite applause)
Last I knew, there were a few cockeyed scientists in those organizations (nearly 50,000 in AMS and AGU alone).
Bad America…sit America, sit…no, drop it….America!!
There we have it! It’s not about science or policymaking at all with the parents that are the source of the complaint! It’s about doing your patriotic duty and denying that America can do no wrong. So, I guess showing a movie with the opposing view would be…..Rocky IV!
This is how they do it. The illusion of controversy…radio and TV talk show pundits spouting unfounded nonsense do not constitute a scientific debate. This is the myth of the opposing view. Otherwise, they would not be able to do this. It’s the same with ‘intelligent design’ … a subject for another time … the proponents launched a massive campaign about opening children’s minds to other viewpoints and “teaching the controversy”. If you create a controversy, then you can teach it….perhaps they should have a class where they teach about teaching controversy and controversial that is.
Bottom line, Mr. Hardison — this is a public school. Home-school your kids if you don’t like it. You can teach them all the ridiculous things you like about the age of the Earth, the end times, etc.
The last comment below, however, offers some hope.
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