I’ve had a few people ask me why my blog is called Dark Matter Matters, and since I haven’t told that story in a while, I thought I’d share an excerpt from The Ad-Free Brand explaining it (and appending some more recent information). Here goes:
In late 2008, I was struggling mightily with the question of how you measure and quantify the value of brand-related activities. As someone whose father is an amateur astronomer, I’d long been intrigued by the concept of dark matter in the universe. If dark matter is new to you, Wikipedia describes it as “matter that neither emits nor scatters light or other electromagnetic radiation, and so cannot be directly detected via optical or radio astronomy.”
In other words, it is matter out there in the universe that is incredibly difficult to see, basically invisible, but that has a large gravitational effect. What’s particularly interesting about dark matter is that, apparently, there is a lot of it. Again according to Wikipedia:
“Dark matter accounts for 23% of the mass-energy density of the observable universe. In comparison, ordinary matter accounts for only 4.6% of the mass-energy density of the observable universe, with the remainder being attributable to dark energy. From these figures, dark matter constitutes 83% of the matter in the universe, whereas ordinary matter makes up only 17%.”
I find this fascinating.
And dark matter is still a theoretical concept. Again from the Wikipedia entry: “As important as dark matter is believed to be in the cosmos, direct evidence of its existence and a concrete understanding of its nature have remained elusive.”
But it was actually reading about all the problems with the Large Hadron Collider in 2008 (at the very same time I was having my own problems figuring out how to measure the value of brand-related work) that helped me make the connection between what I do for a living and this concept of dark matter.
The Large Hadron Collider is the world’s largest particle accelerator. It was built on the border of France and Switzerland and is about 17 miles wide. One of the things that particle physicists hope to prove with this enormous project is the existence of dark matter.
I’m no physicist, but as I understand it, the accelerator shoots protons at super-high speeds around the collider, and, if these scientists are lucky, the collisions eventually might produce a few particles that will exist for only a few milliseconds and then disappear again. And these particles might prove that dark matter isn’t just a theory.
Might being the key word. In fact, noted physicist Stephen Hawking bet $100 that they won’t find anything (a bet which he may soon win). The cost of building a collider to maybe prove the existence of dark matter? About $9 billion dollars. (And as of this post, written in September 2011, three years since its was first fired up, we are still looking for evidence.)
Another attempt to prove the existence of dark matter used the Hubble Space Telescope. This image below (which I also used for the header of the blog) was taken by Hubble and first shown by NASA in May, 2007.
In this picture, you are looking at many galaxies a really, really long way away. But you can also see fuzzy gray areas all over that look like clouds. When the astronomers first looked at this photo, they thought the fuzzy areas were a problem with the image. But after analyzing it for over a year, they realized that the fuzziness might actually be evidence of dark matter.
Their reasoning? The fuzziness is actually a gravitational distortion of the light rays from distant galaxies that are being bent by dark matter on their way to Earth. The effect you see is kind of like looking at the bottom of a pond that is being distorted by ripples on the surface.
Is dark matter the same as antimatter?
No, dark matter and antimatter are different concepts. Antimatter is the reverse of normal matter. Dark matter is just dark.