Category: Books

Includes all types of publications: books (hardcovers, trade paperback, mass market paperbacks, ebooks, magazines, graphic novels)

Gas Giant Genesis

Which giant planet formed first?

Short answer:  Jupiter

Long answer:  Still Jupiter, but let’s dive in and take a more detailed look.

Image Credit: NASA

Birth of a Gas Giant

A long time ago in a solar system very near you, just 1 or 2 AU past the snow line, enough surrounding planetesimals were accreted to become an Earth-like body containing about ten (10) Earth masses of metal and rock.  This, in turn, gave this massive body enough gravitational attraction to pull vast amounts of hydrogen, helium and ices near its orbit, creating the first planet in our solar system: Jupiter.  Impacts from the infalling gases and ices heated Jupiter up, so much so that for a short time, it outshown the protosun, if viewed from equal distances.  Jupiter lacked the total mass to become a star, needing to be seventy-five (75) times more massive to achieve the necessary compression and heat in its core to sustain fusion.

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Foci and Mirrors

This week’s discussion topic will attempt to answer the question:

Suppose your Newtonian reflector has a mirror with a diameter of 20 cm and a focal length of 2 m. What magnification do you get with eyepieces whose focal lengths are: a. 9 mm, b. 20 mm, and c. 55 mm?

From my textbook:

The magnification of a reflecting telescope is equal to the focal length of the primary mirror divided by the focal length of the eyepiece lens:

Magnification = Focal Length of Primary / Focal Length of Eyepiece

In the question stated above, the three different eyepieces will result in the following magnifications:

2000 mm / 9 mm = 222X
2000 mm / 20 mm = 100X
2000 mm / 55 mm = 36X

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Newton and Neptune

My second post in my series of weekly discussion topics for my Introduction to Astronomy online class.  Last week I got up close and personal with the many sides of the Moon.  This week I take a closer look at the other blue planet in our solar system and how we discovered it without observing it first.

Parting Shot of Neptune as Voyager 2 began journey into interstellar space (Jan 1996)
The image is among the last full disk photos that Voyager 2 took before beginning its endless journey into interstellar space. (NASA Jan 1996)

Why was the discovery of Neptune a major confirmation of Newton’s universal law of gravitation?

Before Newton, astronomy relied on observational data from which mathematical formulae and equations were created. Newton pioneered an approach which allowed mathematicians to extrapolate and predict the movement of objects using three assumptions, now commonly known as his laws of motion. Together with his formula for gravitational force, Newton transformed Kepler’s three laws to predict orbits of comets and other solar system objects. He further formulated a mathematical model, known as the Law of Universal Gravitation, that describes the behavior of the gravitational force that keeps the planets in their orbits. (Comins, 2015, p. 42-44)

Image credit Tony Wayne Jan 2004

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Lunar Yin Yang

Another semester is upon me and my continuing pursuit of a degree.  This fall I’m seeking my science lab course credit so I decided to enroll in something I can easily get excited about:  Astronomy

The following post begins a series of weekly discussion topics I’m required to choose and post to my online Introduction to Astronomy class discussion board.  Since the formatting is very similar to that employed here at my blog, I’ll draft and publish my topics here as well.  Feel free to comment or ask questions.  I’ll do my best to answer or at least point you in the right direction.

 Near and Far, Light and Dark; the Many Sides of Our Moon

Yin and yang can be thought of as complementary (rather than opposing) forces that interact to form a dynamic system in which the whole is greater than the assembled parts. Everything has both yin and yang aspects (for instance, shadow cannot exist without light).[1]

The moon’s rotation (axial spin) matches its revolution (orbit), also known as a synchronous rotation or tidally locked. This results in the same side, the near side, always facing towards Earth. Until 1959, humans had no idea what the far side of the moon looked like.[2] Continue reading “Lunar Yin Yang”

Fantastic Fun Friday

I knew going into Friday I would have a very long day ahead of me. I had errands I needed to run first thing in the morning, so I planned to be late to work.  I stayed up past my usual bedtime, keeping my husband company.  We watched the inaugural episode of the new Amazon series “The Tick”, which is a remake of the two other Tick series from the 90s and 00s.  We also watched the latest episode of “Salvation,” which is shaping up nicely.  Not enough science, but plenty of political and personal interactions to keep the layman interested.

I forgot to turn off my alarm but didn’t mind getting up at my normal time of half past five. I did a few minutes of exercise on our elliptical and ran myself through the shower. I avoided logging in to work so I wouldn’t distract myself from the errands I needed to complete. In honor of Monday’s total solar eclipse, I wore my commemorative T-shirt produced by the Astronomical Society of Kansas City. I made sure to grab my ASKC name badge and place it in my car as I would need it for the final event on my Friday schedule.

At half past seven, I left and headed north, with a quick side trip through the car wash, which was surprisingly unbusy so early in the morning. I continued north through Lansing and most of Leavenworth until I reached the old county courthouse. I parked in the Justice Center’s parking lot and serendipitously ran into one of my book club friends on her way to work.

I walked the block back to the old courthouse and grabbed number 45 from the dispenser with about ten minutes wait time before the Treasurer’s office opened. I decided to pay the taxes and fees for my newest vehicle the old-fashioned way – in person and with a handwritten check. The number displayed as being served was 41 so I knew I wouldn’t have long to wait. I made myself comfortable on the old pew-like wooden bench and continued listening to the Dreamsnake audiobook I’d recently checked out via Hoopla.

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A Mid-Summer Night’s Streaming

This past week I took a break from watching movies I’d requested through my local library (see my previous post about dumping my Netflix DVD subscription) and switched to streaming two new (to us) science fiction series via Amazon Prime.

My favorite thing about streaming a series is not having to wait a week between episodes, especially when you are coming late to the party.  I do occasionally binge watch, but usually no more than four (4) episodes at once.  I have limited myself to two (2) episodes a night of The Man in the High Castle with a solo sandwiched between allowing me to complete five (5) episodes this week.  And I must say I am hooked.

It’s been years since I read PKD’s novel but even with my vague recollections I’m riveted by this production.  I’ve pulled out my ebook edition to reread, but that won’t prevent me from continuing on with the rest of season one.  There’s a reason PKD has so many adaptations.  If you haven’t read anything by him, I highly recommend him.

The second series we started watching this week was Humans (stylized with an upside down A).  I decided to watch this series based on an article I read months ago that stated if you really want to experience a robot rebellion, try Humans instead of or in addition to Westworld.  I very much enjoyed Westworld, especially the cinematography, production quality, story and acting, which sets a very high bar for Humans to meet.  

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How an independent bookstore took on anti-feminist trolls and won | Books | The Guardian

https://amp.theguardian.com/books/2017/jun/27/how-an-independent-bookstore-took-on-anti-feminist-trolls-and-won

Great article to read first thing in the morning.  Solidarity in the feminist trenches with wit and humor. 

 It this statement by the author under attack which rang especially true for me:

Speaking of the difficulties feminists face when trying to get their message across, Ford said: “It’s tedious and exhausting to deal with a daily onslaught of abuse and paranoia from angry men and their terrified cohorts. It’s impossible to have logical conversations with them because they don’t care about facts, only about how they feel about those facts.”

Summer Reading for the Young at Heart

Summer reading programs at all my local libraries are in full swing this first week of June.  Nearly all the libraries have great programs, activities and prizes for both kids and adults and this year’s theme is “Build a Better World” (see links below for libraries shown here).

Kansas City Area Summer Reading Programs

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Beginning My Deep Dive Into Tolkien

ppp_400x400A dear friend of mine sent me off on a wonderful Tolkien tangent last week when she replied to my Podcast Pickup post and directed me to the Prancing Pony Podcast.  I quickly scanned the last half dozen posted episodes and settled on #038, also entitled “I Will Choose Free Will” – which immediately gave me a Rush earworm.  Not one to be daunted by a nearly two hour podcast (we are dealing with ‘epic’ fantasy here), I gave a listen to the ongoing discussion of The Silmarillion, specifically Chapter 21 and Túrin Turambar.  I pulled out my ebook edition and quickly skimmed Chapter 21 to remind myself of the story.  I really enjoyed the insights and the banter of the hosts.  It took me several days to completely listen to the episode, but by the end I was hooked and a plan began to form in my mind.

I have read The Silmarillion at least three times, possibly four.  My first attempt occurred in high school, followed by a reread during college.  I probably pulled it out for a third reread in the 90s, but with two young kids, I doubt I succeeded a complete journey.  The most recent rereading took a different tack wherein I switched to an audiobook edition, the one read by Martin Shaw.  I adore English voice actors so I had no trouble listening to the entire book twice, in 2010 and again in early 2013.

Having been impressed with the podcast above, my plan now is to begin at the beginning, to rewind back to episode #001, “In Defense of Fantasy” originally released in February 2016.  I’ve requested the recommended reading from my local library (the biography by Carpenter and Tree and Leaf by Tolkien).  I already own the ebook editions of Tolkien’s letters.

I am not going to rush this journey.  The road goes ever on, as any Tolkien fan knows.  I will indulge myself as the fancy takes me, betwixt and between my other reading and listening projects.  I will consider this an ongoing and long running blog posting series and please remember that “Not all those who wander are lost.”

Podcast Pickup

The stars have aligned recently in my personal universe allowing me to enjoy audio podcasts once again.  Years ago, I used to listen to them via my laptop, a web site or perhaps my Palm Pilot (yeah, remember those)?  I never owned an iPod but my children had a couple.  I liked the concept, but for the most part I preferred listening to audiobooks (and still do for the most part).

I’m a Patreon supporter of an author (Kameron Hurley), who recently started producing podcasts on a monthly basis.  Rather than download yet another application to my smartphone, I decided to use an existing installed app to listen to her podcasts.  I downloaded the audio file and placed it in my audiobooks folder so that my Smart Audiobook Player app would pick it up automatically.  It found the new file and I was able to listen to it through my Bluetooth headset and through my new car’s stereo system while commuting. I’ve listened to both episodes and enjoyed them both (although I do warn you that profanity is prolific).  I even submitted a question for a future podcast to her.  Kameron has made the podcasts available to everyone via her website at this URL:  http://www.kameronhurley.com/podcast/

This listening experience reminded me that there are other podcasts to be discovered.  I did some searches for best podcasts of the last couple of years for science fiction and fantasy.  I found two that seemed to fit my bill:  Sword and Laser and Wired’s Geek’s Guide to the Galaxy (GGG).  I subscribed to both of them and downloaded the most recent episodes to my Google Music app.

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