Being Randomly At A Movie Isn't "True Heroism'

Now I realize I am probably making no friends when I post this, but I did feel strongly about it. What exactly makes the victims of the Aurora shooting "true heroes"? My heart goes out to them, and especially to the families of the people who were killed in that depraved man's rampage.

But being at the wrong place at the wrong time is not heroism. Getting shot by a madman is not heroism.

I have nothing but respect for these people. Believe me. My beef is with the media that cheapens "true heroes" by overapplying the term. These people aren't true heroes. They are true victims.


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A Cosmic Thought

From wikipedia:

The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 meters. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.
The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known.

3,000 galaxies in an image that only includes one 24-millionth of the night sky? Why, there must be billions of galaxies then!

It just makes me so very sad, that there's so much out there and we'll never see it. Hundreds of sextillions of stars, hundreds of quadrillions of rocky planets, millions of nebulae, black holes, supernovae, comets, distant worlds teeming with strange, alien life, and yet Americans spend more money in two weeks on war than we do in an entire year on space exploration.

Sometimes I seriously wonder if the Purpose of gravity is to keep weak species out of the space exploration business.


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Orbital Forcing, Global Warming, and Tree Rings

Here's a new study published in Nature. In it, they discuss the fact that tree ring data from fossilized trees in Northern Europe indicate that for the past 2,000 years, the temperature has been slowly decreasing.
Immediately upon its publication, the anti-global warming community pounced. "New Study Thoroughly Debunks Global Warming" reads the headline.

But wait. TAE is here, with two degrees in "science" to help the layman understand this highly scientific article. The summary of the article references a term called "orbital forcing" and suggests it is the cause of the temperature shift over the last couple millennia:

Over recent millennia, orbital forcing has continually reduced summer insolation in the Northern Hemisphere5. Peak insolation changes in Northern Hemisphere high latitudes, at ~65° N between June–August (JJA), have been identified as the prime forcing of climate variability over the past million years1. Together with long-term CO2 variability resulting from biogeochemical feedbacks of the marine and terrestrial ecosystems14, these insolation cycles have initiated the interplay between glacial and interglacial periods.

What is this orbital forcing? What is solar insolation?
Orbital forcing, basically, is the change in the tilt of the Earth over time. Most people know that the Earth is tilted on its axis. This tilt, combined with the year-long orbit around the sun, causes our seasons. When the Earth's tilt and orbit point the Northern Hemisphere towards the sun, we get summer in Kansas. 6 months later, we have winter as the tilt of the Earth and its orbit around the sun now direct more solar energy at the Southern Hemisphere.
Solar insolation is a measure of the total radiation, be it heat, light, UV, gamma rays, etc that the sun outputs that is hitting the Earth. So in a nutshell, orbital forcing is a change in the tilt of the Earth, which in turn amplifies or lessens the amount of solar insolation, i.e. heat, hitting the Earth.

These scientists have measured the size of tree rings dating back as far as 138 BC and found that solar insolation has been slowly decreasing over that period, as a result of orbital forcing. Therefore, the temperature of the Earth has been decreasing, though ever so slightly.

So is global warming debunked? Well yes, and no. Certainly the Earth is cooling off, if this study is true. But is it cooling off as fast as it would without the anthropogenic climate changes? If humans weren't raping and pillaging the Earth as fast as they possibly can, would the Earth have even more noticeable cooling effects?
Saying this "debunks" global warming is an over-simplification. This study alone does indicate that the global average temperature over the last 2,000 years has not increased - in fact it has gotten lower - but it makes no presumptions about the post-industrial revolution era, nor do the authors explicitly (or even implicitly) suggest that humans played a factor in their data.

The climate is a complex thing. Using a single tree ring study to "debunk" global warming is just as bad as the reactionists who point to the current hot/dry summer as "proof" of global warming.


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