Category Archives: Eclipse

Why Are There 360 Degrees in a Circle?

19 Monday Mar 2018

Posted by in All Rights Reserved, Astronomy, Eclipse, History, Photography, Science, solar, Space

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Everyone knows there are 360 degrees in a circle. Why? A circle could have a 1,000° which would make a half circle equal 500° and a quarter circle 250°. Who chose the number 360? Was there a vote? Who do we blame? Inquiring minds want to know!

Two circles getting in each other's way

2017 Total Solar Eclipse from Canyon City, OR

As it turns out there are at least two reasons we use 360° as the number to define a complete circle. One reason has to do with astronomy and the other with mathematics.

360 Degrees? Blame the Babylonians

The Greeks are partly responsible for defining the numerical value for a circle, but really it was the Babylonians. It may even be farther back than the Babylonians, but someone erased their hard drive and now we will never know.

Apparently, the Babylonians loved the number ’60.’ They created a number system using Base 60 (we use Base 10.) The number 60 is amazing because it can be divided into so many factors. 60 can be divided evenly by 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. Since the Babylonians loved 60, the fact that a circle can be divided into six equilateral triangles made 360 the best option for defining the numerical value of a circle.

We don’t actually know if it was the Babylonians, but we do know that several prominent Greek mathematicians used 360° as the numerical value for a circle. It is written…in Greek of course.

Star Gazers In a 360 Days

But long before the Babylonians, it was obvious to anyone who looked up at the sky at night that the stars followed a circular pattern through the year. If one noted the position of a star or constellation on a particular night and time, next year that star would be in the same place on the same day and time.

The elapsed number of nights for a full circle? About 360. Anyone who tracked the stars would have noted that the circular pattern of the stars resumed after about 360 days.

The reason we have 360° is most likely because of the speed at which the Earth rotates, (once every 24 hours,) and there are approximately 360 rotations (days) in a year.

Metric Circles?

Believe it or not, there were attempts to make circles metric. It didn’t take. There are some uses for it, but the 360° value is more accepted ‘around’ (that’s a joke) the world.

500th WordPress PAULx Post: Milestone of Words

11 Sunday Feb 2018

Posted by in Aging, Communication, Eclipse, Education, Ethics, Generational, Higher Education, Journalism, Lessons of Life, Milestone, Opinion, Random, Relationships, Respect, Rotary, Universities, Wordpress, Writing

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I have reached a milestone of writing on this WordPress site. This is the 500th article! It has taken me eight years and a lot of typing. For this occasion, I’m writing 500 words and breaking it down into five topics of 100 words each.

Lunar eclipse 31 JAN 2018

Writing

Writing is a gift that is given to few people. For everyone else writing is learned. After writing 500 articles on this site, and many more words on other sites, I have improved, but I’m still barely a teenager when it comes to writing. Anyone can become a great writer, it just depends on how much you practice the art.

I am not a ravenous reader of books, but I am an admirer of plays. William Shakespeare is a hero of mine. At a time that writing was a rare talent, he became a legend. He created life by using words.

Life

I’m not sure we are meant to understand life. It would be like being given the answers before we take the test. I believe that our life is meant to teach us who we are and in the end, it comes down to a simple question:  Did we avoid being deceivers?

It is easy to determine a person’s inner strength of character based on how honest he or she is to themselves and to others. Rotary’s Four-Way Test is a great guide for determining character. It’s not a matter of saying it. It’s a matter of doing it. Trump can’t.

Four-Way Test

Relationships

I believe life is about positive relationships. Time by yourself is necessary but most your life should be spent engaged with others. Interaction creates a balance. When we are alone we have no alternate view and that is dangerous. The human brain likes to create an idea and then make a cozy nest for that idea to be sheltered from opposing thoughts. That makes for weak thinking.

Relationships force us to expose our ideas to others which either reinforces or challenges them. That makes for a richer life and stronger and more balanced thinking. Negative relationships should be avoided.

Communication

Relationships are based on communication. Not necessarily by words. In fact, I believe the deepest communication occurs through intimacy. Words can be used to deceive and manipulate others. For some people, their primary use of words is to deceive. Intimacy is not easily faked.

When communication is used to express true thoughts and emotion it builds relationships. This doesn’t mean that everyone will accept or agree with those thoughts and emotions, but I believe we are meant to have relationships only with people who are accepting and honest with us. Communication binds us to some and disconnects us from others.

Wisdom

Who am I to talk about wisdom? I do not have a master’s degree, nor a doctorate in any field. I am not a shining example of what to do. I have no great mind that spews forth great thoughts. I am one micro entity in a universe that would not recognize me from a speck of dust.

I do have awareness. I have senses that interpret the world around me. I have life and that gives me experiences to reflect on. Perhaps wisdom is simply the ability to measure our own experiences and understand good outcomes from bad ones.

[COUNT TO 500:  500th Article in PAULx]

2018 Blue Moon Lunar Eclipse

31 Wednesday Jan 2018

Posted by in About Reno, Astronomy, Eclipse, Photography, Recreation, Science, Space

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The Almost Super, Blue, Blood Moon

The western United States experienced a total lunar eclipse this morning just before dawn. I set up at 4:30 AM on a vantage point at the northwestern edge of Reno, Nevada with my camera and my telescope. It wasn’t as awe-inspiring as the total solar eclipse in Oregon on 21 August of last year, but it was impressive.

Blood-red Moon

Eclipsed Moon over Reno, Nevada

Unfortunately, Reno has been plagued with near constant high clouds this winter and this morning was more of the same. It allowed a good view of the eclipse of the Moon with the naked eye, but all my telephoto images lacked the clarity that I would have liked.

Coyotes Have the Last Howl

The best moment for me occurred after totality ended. As the Moon came out of Earth’s shadow, multiple packs of coyotes began to howl. It was amazing and a little unnerving. One coyote had to be within 150 meters, just below me. It is obvious that Reno is surrounded by packs of coyotes taking advantage of the food sources in human communities…including cats and dogs. Below is a recording of one of the two howling events.

I have seen several lunar eclipses in my life and it is fascinating to watch the white-washed Moon suddenly change to deep brownish red just before totality. The Moon becomes three dimensional and looks like a ball hanging in the sky.

My God, it's surrounded by stars!

Blocking the Sun’s reflected light allows us to see the stars near the Moon (click on image to see larger version)

During this eclipse, I noticed more stars in my images than in past eclipses. The high clouds hid almost all the stars from the naked eye, but the telephoto lens was able to capture them.

Buh, bye Moon!

A last look at the partially eclipsed, Moon setting behind the hills

Not Quite Super

The media plugged this Moon for this eclipse as the ‘Super’ Moon. They can get away with that, but the Full Moon of 1 January was the 2018 Super Moon. It was closer to Earth when it reach the Full Moon phase at the beginning of the month. This Full Moon was also near apogee when it became a Full Moon, but not as close as the New Year’s Day Moon. It was close, but not quite; however, an “Almost Super Moon” doesn’t have the same zip as Super Blue Blood Moon.

It was entertaining to listen to reporters try and explain the terms when they had no clue what they were talking about. Makes me think that maybe I’m entertaining when people read my articles…but not for the reason I would hope.

If you like the coyotes howl, below is the second event that I recorded a few minutes after the first one. I didn’t have my camera focused on the Moon at first, so I added images over the sound at the beginning, but the end is the real time video of the post-totality Moon with the coyotes singing in the background.