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

Wednesday, September 01, 2010

curiosity-driven science

This talk is just connecting with me right now...

"Brian Cox explains how curiosity-driven science pays for itself, powering innovation and a profound appreciation of our existence."




------------------------ Carl Sagan, Pale Blue Dot, 1994 -------------------------

Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there--on a mote of dust suspended in a sunbeam.

The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds.

Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.

It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.

------------------------ Carl Sagan, Pale Blue Dot, 1994 -------------------------

Friday, March 06, 2009

Students Benefit From Depth, Rather Than Breadth, In High School Science Courses

Students Benefit From Depth, Rather Than Breadth, In High School Science Courses

For years I wondered about my approach to Physics... only getting through mechanics during our block-schedule semester. But this helps support my approach, as does recent feedback from some former students. My only hope would be that more students took a second year of Physics :)

Sunday, February 08, 2009

Gender Bias Found In Student Ratings Of High School Science Teachers

http://feeds.sciencedaily.com/~r/sciencedaily/~3/3OjNNPQzeoA/090202174953.htm

Perhaps science has an image problem. I know the opposite bias has been investigates for years... That science teachers treat male students differently. But this is the first time I've seen research on this aspect.

But then, all physics teachers are a little odd to begin with :)

Sent from my iPhone

Wednesday, January 28, 2009

Essay: Elevating Science, Elevating Democracy

http://www.nytimes.com/2009/01/27/science/27essa.html

Essay: Elevating Science, Elevating Democracy



Science is not a monument of received Truth but something that people do to look for truth.



Sent from my iPhone

Wednesday, August 27, 2008

Sunrise

This is the sunrise on the first day of school 2008. It amazes me to look at something like this, my mind begins to spin. A vision like this requires so much. A planet with an atmosphere, which is rare enough, but then saturated with water vapor. Light diffracting through that atmosphere as the speed of each wavelength changes slightly, with blue (short wavelengths) scattering the most... but then our eyes, developing through evolution to sense those small differences in wavelengths... but that same stuff (electromagnetic waves) is what transfers this photo from my iPhone to this website... and yet the car I'm driving in affects that atmosphere and along with the natural factors, increases our global temperature on average because the sun's rays heat up the planet but that heat can't radiate out in the same quantities it used to...

A sunrise. A new day. A new hope.

p.s. we fixed the ozone