Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Saturday, February 25, 2017

New Links Pages

Sometimes I find an interesting article or two online that I don't have the time or gumption to write about.  I've added some pages to this blog where I will post these.

So far I have the following:
I am also added a similar page to my Rock Art blog.

Tuesday, July 21, 2009

Partial Solar Eclipse

My Best Photo

There was a solar eclipse today in India & China. Apparently it was a total eclipse in Mumbai and Shanghai, but it was cloudy and rainy in both places. I heard the weather was perfect in Iwo Jima which also had totality. Here in Seoul, it was a 74% occlusion at the maximum around 10:48 a.m. Class was scheduled to start at 10:50, but I delayed the beginning of class until 11:10, well after the maximum.

I heard about the eclipse when I turned on the TV this morning, which I normally do not do. On the way to work I stopped by an office supply store and bought some blank CDs because they are pretty good light filters for an eclipse. However, the ones I got had some sort of grainy finish and everything looked blurry. I went back and got several sheets of red filter paper that the shop owners was selling for looking at the eclipse and they worked wonderfully. It was almost impossible to get decent photos with my camera because of the high contrast between direct sun and the background of the sky. The filter sheets were too wrinkly to allow for good focus. However, I did get one or two good shots when the clouds partially obscured the sun and you could see the eclipse through them with the naked eye.

Pinhole image of the eclipse from Frank McDonald's equipment

Frank McDonald who is teaching organic chemistry had a pinhole in a piece of cardboard and you could see the eclipse in the image shining through the hole on a piece of white paper. Classes let out at 10:40 and many of the ISC students gathered in front of Woodang Hall where we hold most of the classes. Iit was a rather festive atmosphere. A few minutes before the peak occlusion the clouds went in front of the sun for 10 minutes and we missed the maximum, but it was still very impressive nonetheless.

Students Watching the Eclipse in front of Woodang Hall

My next shot at a full eclipse is August 21, 2017 when the shadow will travel across southern Idaho and Wyoming. I am planning on camping out the night before in a very dry place with little chance of clouds.

Update:

Jen Youngstrom, who teaches psychology here this summer, forwarded some excellent photos from the fellow in the apartment next to her family in the CJ International House.



Friday, April 3, 2009

Robot Achieves Scientific First

This is really astounding if you stop to think about it. The robot formulated a hypothesis and carried out a series of experiments designed to test that hypothesis resulting in new scientific knowledge. All without any input from his human designers. This is amazing! It's not just manual workers who stand to lose jobs to machines, but we Ph.D.'s may need to start worrying. Fortunately, I do have tenure.

http://www.ft.com/cms/s/0/f2b97d9a-1f96-11de-a7a5-00144feabdc0.html

Friday, December 12, 2008

Who Owns the Moon?

From Space.com via Yahoo News:

http://news.yahoo.com/s/space/20081210/sc_space/whoownsthemoon

Laws tend to build on precedent. Since there's little precedent for lunar laws, some look to the sea for suggestions. That is, the use of ocean floor minerals beyond the limits of national jurisdiction. Such valuable resources are designated by some as a Common Heritage of mankind, not subject to national appropriation.

Could the Common Heritage concept work as the basis for a Moon Treaty?

Virgiliu Pop is a research specialist at the Romanian Space Agency. He has for years been keeping a legal eye on the area of space property rights, and his new book, "Who Owns the Moon? - Extraterrestrial Aspects of Land and Mineral Resources Ownership" (Springer, 2008) was published this month.

Pop has been delving into what has shaped the law of extraterrestrial real estate, and the norms which express this law. And in his view, the norms and rules regarding property rights in the celestial realm are rather limited, even failing to define basic concepts such as what is a celestial body.

Pop favors property rights over group hugs.

"Despite the noble ideals of equity and care for the have-nots, the Common Heritage paradigm of the Moon Treaty has more faults than merits," Pop told SPACE.com.

It may seem like a silly thing to think about, but ownership of the valuable resources in space is a question that will eventually need to be addressed. As a libertarian, naturally, I favor private ownership. How the ownership should be determined is a tricky matter. As Pop notes in the article, some sort of homestead law might be a good way to go. You wouldn't be able to claim a piece of property unless you were actively using it.

The alternative is to allow for government or trans-governmental "community" ownership. To imagine how well this might work just think of how the break room at your job looks.

Thursday, December 11, 2008

Learning About Archaeology in the San Rafael Swell

I really like traveling through the San Rafael Swell. I find the geology and history of the place very interesting. An excellent source of information on the archaeology of the Swell can be found at Dr. K Renee Barlow's blog. I highly recommend her entry on ARCHAEOLOGY OF THE SAN RAFAEL for anyone who plans on a visit to the Swell or surrounding areas.

Wednesday, December 10, 2008

Animal Emotions

An interesting article from Reuters.

Envy is a dog's life, study finds

LONDON (Reuters) – Dogs can sniff out unfair situations and show a simple emotion similar to envy or jealousy, Austrian researchers reported on Monday.

Dogs sulked and refused to "shake" paws if other dogs got treats for tricks and they did not, said Friederike Range, an animal psychologist at the University of Vienna, who led the study into canine emotions.

"It is a more complex feeling or emotion than what we would normally attribute to animals," said Range.

The study, which was published in the Proceedings of the National Academy of Sciences, also showed dogs licked and scratched themselves and acted stressed when they were denied rewards given to other dogs.

Other studies have shown monkeys often express resentful behavior when a partner receives a greater reward for performing an identical task, staging strikes or ignoring what they view as inferior compensation.

It turns out dogs are able to show a similar, if less sensitive, response, said Range in a telephone interview.

In a series of experiments using different breeds of dogs, the researchers looked at how two animals sitting next to each other reacted to unequal rewards after handing a paw to a researcher.

Dogs not given a treat licked their mouths, yawned, scratched and showed other signs of stress and stopped performing the task, Range said.

To show this was not just because the animals were not getting food, the researchers then tested the dogs alone and found that in this situation the envious canines cooperated longer before stopping.

"It is really about the unequal distribution of the reward," Range said. "If it was only about frustration they would stop at the same time."