Online reading group and book discussion forum
  HOME ENTER FORUMS OUR BOOKS LINKS DONATE ADVERTISE CONTACT  
View unanswered posts | View active topics It is currently Wed Jun 20, 2018 11:05 pm





Post new topic Reply to topic  [ 7 posts ] • Topic evaluate: Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average. 
Ch. 8: On Being Round 
Author Message
User avatar
Years of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membership
Online
BookTalk.org Hall of Fame

BookTalk.org Owner
Diamond Contributor 3

Joined: May 2002
Posts: 15774
Location: Florida
Thanks: 3287
Thanked: 1226 times in 969 posts
Gender: Male
Country: United States (us)
Highscores: 6

 Ch. 8: On Being Round
Astrophysics for People in a Hurry
by Neil deGrasse Tyson

Ch. 8: On Being Round


Please use this thread to discuss this chapter.



Thu Oct 12, 2017 2:36 pm
Profile Email WWW
User avatar
Years of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membership
Freshman

Silver Contributor

Joined: Sep 2010
Posts: 200
Location: Gatineau, Quebec
Thanks: 76
Thanked: 143 times in 114 posts
Gender: Male
Country: Canada (ca)

Post Re: Ch. 8: On Being Round
While living with the Inuit in Canada's far North I was fascinated with their frequent use of the sphere and circle. Their igloos or snow houses are always built in the round, ancient rock structures were usually round and many communities have modern structures built this way.

Tyson's chapter 8, On Being Round may have provided me an answer. The Inuit are simply following a naturally occurring force. He tell us that more spheres are found in the universe than any other form. The reason being that physical laws generally favor spheres. Surface tension will reduce the size of spherical objects in all directions. In large cosmic objects like the Earth and other planets, the combination of gravity and energy combine to reduce matter in all directions and create spherical objects. In fact, the greatest sphere is the universe itself which continues to expand in all directions.



The following user would like to thank LevV for this post:
Harry Marks
Sat Dec 09, 2017 5:39 am
Profile Email
User avatar
Years of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membership
Nobel Laureate in Literature

Book Discussion Leader

Joined: Jun 2012
Posts: 995
Location: Wyoming
Thanks: 438
Thanked: 432 times in 343 posts
Gender: Male
Country: United States (us)
Highscores: 1

Post Re: Ch. 8: On Being Round
LevV, I enjoyed your account of living with the Inuit. Sounds like there might be a book there.

As I read this chapter, when I came to the sentence, "With a diameter-to-thickness ratio of one hundred to one, our galaxy is flatter than the flattest flapjack ever made.", I couldn't help but think "The flat-earthers will have a field day with this." But, of course, there is a big difference in a galaxy and a star or planet. Alas poor earthers, a sphere, even an oblate one, rules the day.

The smoothness of the earth is also fascinating. Mount Everest is the merest pimple of Mother Earth's skin. while the Marianas Trench barely qualifies as a wrinkle. Tyson's analogy to a cue ball is correct. I also once read the if you rolled a cue ball through a puddle of water, the amount that adhered to it would be roughly comparable to all the water in the earth's oceans, rivers and lakes.


_________________
Love what you do, and do what you love. Don't listen to anyone else who tells you not to do it. -Ray Bradbury

Always listen to experts. They'll tell you what can't be done, and why. Then do it. -Robert A. Heinlein


The following user would like to thank Cattleman for this post:
Harry Marks, Robert Tulip
Mon Dec 11, 2017 6:47 pm
Profile Email
Intern

Bronze Contributor

Joined: Nov 2017
Posts: 152
Location: New Jersey
Thanks: 57
Thanked: 63 times in 52 posts
Gender: Male
Country: United States (us)

Post Re: Ch. 8: On Being Round
LevV wrote:
While living with the Inuit in Canada's far North I was fascinated with their frequent use of the sphere and circle. Their igloos or snow houses are always built in the round, ancient rock structures were usually round and many communities have modern structures built this way.



Remember the geodesic dome revolution? I really like the homes built like Buckyballs. They're eye-catching, aesthetically pleasing and ergonomically advanced.
https://www.pinterest.com/explore/geode ... e/?lp=true


_________________
Hate has no home here.


Last edited by Litwitlou on Tue Dec 12, 2017 12:51 pm, edited 1 time in total.



The following user would like to thank Litwitlou for this post:
Harry Marks
Tue Dec 12, 2017 12:50 pm
Profile Email
User avatar
Years of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membership
Almost Awesome


Joined: May 2011
Posts: 906
Thanks: 778
Thanked: 408 times in 339 posts
Gender: None specified

Post Re: Ch. 8: On Being Round
Litwitlou wrote:
Remember the geodesic dome revolution? I really like the homes built like Buckyballs. They're eye-catching, aesthetically pleasing and ergonomically advanced.

But what are they like to live inside of, I wonder? I have never actually entered one.

I remember once having a room under the eaves of an old house, with sloping ceiling that I sometimes bumped my head on, and dormer windows that were very cool to sit in front of. I liked it a lot, but then, it wasn't in a round building. I wonder.



Tue Dec 12, 2017 4:09 pm
Profile Email
User avatar
Years of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membership
Freshman

Silver Contributor

Joined: Sep 2010
Posts: 200
Location: Gatineau, Quebec
Thanks: 76
Thanked: 143 times in 114 posts
Gender: Male
Country: Canada (ca)

Post Re: Ch. 8: On Being Round
Harry Marks wrote:
But what are they like to live inside of, I wonder? I have never actually entered one.


Youtube has a few hundred sites on geodesic dome houses.

Harry, the short video below will give you some idea of what it's like to live in a geodesic dome.

www.youtube.com/results?search_query=ge ... dome+homes


On the really, really practical side......
This dome home withstood Ivan's 150 mile an hour winds a few years ago. This may be the way to go as hurricanes become more common and stronger in many areas of the United States.

www.youtube.com/results?search_query=ge ... dome+house


But for something more affordable:

www.youtube.com/watch?v=7EWGGPhX0bU



The following user would like to thank LevV for this post:
Harry Marks, Taylor
Tue Dec 12, 2017 6:06 pm
Profile Email
User avatar
Years of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membershipYears of membership
Almost Awesome


Joined: May 2011
Posts: 906
Thanks: 778
Thanked: 408 times in 339 posts
Gender: None specified

Post Re: Ch. 8: On Being Round
Looks like the inner experience depends a lot on the size.

Thanks, Lev.



Wed Dec 13, 2017 3:18 am
Profile Email
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] • Topic evaluate: Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average.Evaluations: 0, 0.00 on the average. 



Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:

BookTalk.org Newsletter 

Announcements 

• Promote Your Fiction Book on BookTalk.org
Sun Jul 30, 2017 7:33 pm

• Promote Your Non-Fiction Book on BookTalk.org
Sun Jul 30, 2017 7:18 pm

• What's next on our Short Story menu?
Mon May 22, 2017 8:29 pm



Site Resources 
HELPFUL INFO:
Forum Rules & Tips
Frequently Asked Questions
BBCode Explained
Author Interview Transcripts
Be a Book Discussion Leader!

IDEAS FOR WHAT TO READ:
Bestsellers
Book Awards
• Book Reviews
• Online Books
• Team Picks
Newspaper Book Sections

WHERE TO BUY BOOKS:
• Great resource pages are coming!

BEHIND THE BOOKS:
• Great resource pages are coming!

PROMOTE YOUR BOOK!
Advertise on BookTalk.org
How To Promote Your Book

Featured Books

Books by New Authors


*

FACTS is a select group of active BookTalk.org members passionate about promoting Freethought, Atheism, Critical Thinking and Science.

Apply to join FACTS
See who else is in FACTS







BookTalk.org is a thriving book discussion forum, online reading group or book club. We read and talk about both fiction and non-fiction books as a community. Our forums are open to anyone in the world. While discussing books is our passion we also have active forums for talking about poetry, short stories, writing and authors. Our general discussion forum section includes forums for discussing science, religion, philosophy, politics, history, current events, arts, entertainment and more. We hope you join us!


Navigation 
MAIN NAVIGATION

HOMEFORUMSOUR BOOKSAUTHOR INTERVIEWSADVERTISELINKSFAQDONATETERMS OF USEPRIVACY POLICYSITEMAP

OTHER PAGES WORTH EXPLORING
Banned Book ListMassimo Pigliucci Rationally SpeakingOnline Reading GroupTop 10 Atheism Books

Copyright © BookTalk.org 2002-2018. All rights reserved.
Display Pagerank