Friday, May 21, 2010

Bode's Law

Bode's Law, or Titus-Bode Law, is a now refuted law governing planet location with our Solar System. It presumes a relationship between all of the planets in their distances from the Sun.

Formulation

The Law relates the semi-major axis, a, of each planet outward from the sun in units such that the Earth's semi-major axis = 10, with

a = n + 4
where n = 0, 3, 6, 12, 24, 48 ..., with each value of n > 3 twice the previous value. The resulting values can be divided by 10 to convert them into astronomical units (AU), which would result in the expression

a = 0.4 + 0.3 · 2 m
for m = , 0, 1, 2,...[1]

For the outer planets, each planet is 'predicted' to be roughly twice as far away from the Sun as the next inner object.

Origin

It's name comes from the fact that it was promoted by Johann Elert Bode when in 1768, he wrote the second edition of his astronomical compendium Anleitung zur Kenntniss des gestirnten Himmels, which states the following.
Let the distance from the Sun to Saturn be taken as 100, then Mercury is separated by 4 such parts from the Sun. Venus is 4+3=7. The Earth 4+6=10. Mars 4+12=16. Now comes a gap in this so orderly progression. After Mars there follows a space of 4+24=28 parts, in which no planet has yet been seen. Can one believe that the Founder of the universe had left this space empty? Certainly not. From here we come to the distance of Jupiter by 4+48=52 parts, and finally to that of Saturn by 4+96=100 parts.

History

At the time, Saturn was the farthest known planet. Bode's Law gained credibility when Uranus and then Ceres where discovered. These bodies happened to fall in line with predictions made by the formula. However, this Law become refuted when Neptune was discovered at a location from the Sun that was no where near its predicted location.

Also, to further refute Bode's Law is the fact that other systems exist in our Solar System which do not follow its formula. Although the moons around Jupiter, Saturn and Uranus do follow some sort of pattern, they do not follow Bode's Law; nor do they share patterns with each other.

Status

The discovery of Pluto and more recently other Kuiper Belt objects have proven Bode's Law to be false. It appears that Bode's Law was a misguided attempt to explain an observation that did not have enough data. Given what is known now, it seems that perhaps there is some sort of rule that applies to naturally formed orbiting body systems, but there is no formula that can predict the arraignment of such. Perhaps Bode's Law can be useful in the future, not to predict planet placement in other extrasolar systems, but maybe to point us in the direction to understand planet formation and resonance. We can see there is some sort of resonance. We can also see that a particular resonance is not shared between different systems, and only applies in a limited fashion. It is not useful for anything else. Although it really cannot be called pseudo-science, since it was based on observation and did make some predictions that panned out, it is really not useful science today. Further complicating the issue is that the definition of planet has changed. Ceres and Pluto are no longer considered planets. This means that any use of Bode's Law in the context of what is now known can be called pseudo-science.


Planet Distances from the Sun (from Wikipedia.org)

Mercury factor: 0
Bode’s Law: 0.4, Actual: 0.39

Venus factor: 1
Bode’s Law: 0.7, Actual: 0.72

Earth factor: 2
Bode’s Law: 1.0, Actual: 1.0

Mars factor: 4
Bode’s Law: 1.6, Actual: 1.52

Ceres factor: 8
Bode’s Law: 2.8, Actual: 2.77

Jupiter factor: 16
Bode’s Law: 5.2, Actual: 5.2

Saturn factor: 32
Bode’s Law: 10, Actual: 9.54

Uranus factor: 64
Bode’s Law: 19.6, Actual: 19.2

Neptune factor: 128
Bode’s Law: 38.8, Actual: 30.06

Pluto factor: 256
Bode’s Law: 77.2, Actual: 39.44

Monday, May 17, 2010

Alaska Cruise planning

A couple years ago, Allie and I decided that we'd go on an Alaskan cruise with her folks. The main location that interested me was Glacier Bay. Also, I wanted a cruise that was earlier in the year before the big crowds. I didn't know much about cruises (I've never been on one before) so I had to rely on my research. I wanted to book our cruise last year, though several factors forced us to wait for a 2010 cruise.

The first cruise line I looked at was Carnival. However, they don't have any ships that goto Glacier Bay early in the year. Other cruise lines didn't have round trip journeys (which means we'd have to fly back home on some very long flights with layovers). After researching, I found that Norwegian Cruise Line has at least a couple of ships that go up to Alaska during May with round trip itineraries that include Glacier Bay. They start in Seattle and end in Seattle. As a bonus, my best friend lives in Seattle.

The ship that seemed to have the best itinerary for us was the Norwegian Pearl. The ship, its accommodations and amenities appeared to be modern. After a lot of discussion, we pulled the trigger by purchasing 2 balcony suites for ourselves and her parents. Balcony suites are expensive, but since this was likely the only time that Allie and I would ever go on a cruise to Glacier Bay, we had to get them. By September last year, we were set for an Alaskan cruise aboard the Norwegian Pearl for seven days starting on May 9th.

Sunday, May 09, 2010

High School Poems II

Duff
Brown, brush
Lies, burns, moisturizes
Forestial protective top soil
Dirt


Boulder
Common, terrestrial
Sits, cracks, crumbles
Is at the mercy of weather
Big rock


For Extra Credit
Great way to improve my score
Ain't this just so great?!


I had classes that covered poetry for 4 years straight, and by the second year, I just started recycling much of my works,just adding extras to cover differing requirements.

I'm not going to add any other poems from my schools years here. There's over 50 or so, but nufin really any good. Some were very ambitious, and I may revisit them later for future projects anew.

Sunday, May 02, 2010

California Nature (Rev. B)

Your journey roads herald adventure,
Impelling me to climb your cloven heights,
And romp carelessly,
as aureate poppy fields beckon.

Sun-kissed waters bounce along your shoreline.
They entice me to surf the crashing calm waves.

Canopy-enveloped valleys thrive with floral scents
That draw my ingression, but I forestall.

Instead I caper like Death Valley’s mysterious-moving-rocks,
Which tickle your basin by some unseen will.

I endeavor to hike your proud hills,
And find places to gaze lostly into lakes full with sky.

Vineyard nectar overflows like sweet sweat,
To spur my soul’s arousal as I partake.
Your boundless attributes gratify my wanderlust,
And allure me to appease your nature.

Friday, April 30, 2010

California Drone

There is this photo going around of a supposed UFO that was flying over Capitola, California in May 2008. There's an AOL News article which discusses this photo.

California Drone


There is a likelihood that this photo is a hoax. According to the AOL article, "someone using the name Raji posted images on the Web site Craigslist, answered a few questions from UFO hunters around the world, and then just disappeared into cyberspace."

I have found alternative sources for the photos on flickr.com. In fact, there are a ton of photos uploaded as of March 28, 2008 on the TCorp account. TCorp has sixteen photos of the California Drone, including what appears to be two versions of the craft. The interesting thing about flickr.com is that it gives you the information about the camera used to take the photo. The original version of the photo above was taken with Konica Minolta DiMAGE X. Those who are searching for this "Raji" should keep this in mind. Several other flickr.com accounts also have photos, including hoax debunkers that have some interesting perspectives.

My impression of the California Drone photos is that they are hoaxes. Problems with the photo above? Although the angle of the sun/shades is similar across view of the photo, the angle is different in its depth. The light source between the object and the power lines is from the right side of the photo, but the light sources' height from the presumed ground is different. Also, the light intensity between direct sunlight on the object and the power line pole is much different. Another problem is focus. Both objects are in focus, but differently. It is almost as though they where taken with two different cameras.