aspose file tools*
The moose likes Meaningless Drivel and the fly likes The Scale of the Universe Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of JavaScript Promises Essentials this week in the JavaScript forum!
JavaRanch » Java Forums » Other » Meaningless Drivel
Bookmark "The Scale of the Universe" Watch "The Scale of the Universe" New topic
Author

The Scale of the Universe

Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61589
    
  67

This site is way too cool! It takes a long time to load so give it a chance before you give up.

http://htwins.net/scale2/


[Asking smart questions] [Bear's FrontMan] [About Bear] [Books by Bear]
Koen Aerts
Ranch Hand

Joined: Feb 07, 2012
Posts: 344

Very cool indeed.
fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11471
    
  16

Haven't seen it yet, but I do know this...

If the Earth was the size of a basketball, the International Space Station would be about 1 cm above the surface. That's as far as we can get a human today.

By contrast, 40 years ago, we were sending humans to the moon, which at the same scale is (IIRC) roughly 8.5 meters away.

If my math is correct (and it may not be), the Sun would be about 1.5 kilometers away.

and even that distance is insignificant when you get into the size of the galaxy...


There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
Koen Aerts
Ranch Hand

Joined: Feb 07, 2012
Posts: 344

What scale is that? Any idea how far from Earth the Voyager spacecrafts currently are in that scale?
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61589
    
  67

Koen Aerts wrote:What scale is that?

The basketball scale.
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61589
    
  67

Wolfram Alpha failed me, so I had to do the math myself. The "basketball scale" is 1 in 53911184.51613 (rounded to 5 figures) or 1.855 x 10-8
Chris Baron
Ranch Hand

Joined: Mar 21, 2003
Posts: 1049
Very nice!
Minecraft World at 10^7.7
Somehow i was expecting "your mom" as last entry. I've been on reddit too often
fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11471
    
  16

Koen Aerts wrote:What scale is that?

I don't think there is an official name for that scale. It is just something that one of my favorite bloggers, Phil Plait, uses. Most people are familiar with the size of a basketball, and are often amazed at the 1 cm vs. 8 meter difference.
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14337
    
  22

fred rosenberger wrote:If my math is correct (and it may not be), the Sun would be about 1.5 kilometers away.

Bear Bibeault wrote:Wolfram Alpha failed me, so I had to do the math myself. The "basketball scale" is 1 in 53911184.51613 (rounded to 5 figures) or 1.855 x 10-8

According to Wikipedia, the circumference of a basketball is 75 cm. The circumference of Earth at the equator is 40,000 km. So that would mean the basketball scale is indeed approximately what Bear said (if you divide those numbers it's 1.875 x 10-8).

The average distance to the Sun is 150 million km, so at the basketball scale that would be about 2.8 km.

The average distance to the Moon is about 380,000 km, so at the basketball scale that would be about 7.1 m.

A few years ago I was visiting a friend who lives in Z├╝rich, Switzerland. Near to his home was a park with a scale model of the Solar System. It was a lot smaller than the basketball scale, I think the Earth was about an inch across. The Sun was a large ball, I think 1 or 1.5 m across. The whole model was a few hundred meters long.

Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 8 API documentation
adam prore
Greenhorn

Joined: Jan 09, 2013
Posts: 7
Hello guys,universe scale is good one its very helpful for the first man who was go to the moon with the help of the scale but i think if earth is so closeed to the erath what did you said when all universe things destroyed and this sun is near to the point of 1.5km..what did you think about it??its right or not ??
Michael Matola
whippersnapper
Ranch Hand

Joined: Mar 25, 2001
Posts: 1752
    
    2
You may enjoy Powers of Ten by the Eameses.



http://en.wikipedia.org/wiki/Powers_of_Ten (page references The Scale of the Universe 2)
Ernest Friedman-Hill
author and iconoclast
Marshal

Joined: Jul 08, 2003
Posts: 24187
    
  34

Wow.


[Jess in Action][AskingGoodQuestions]
Martin Vajsar
Sheriff

Joined: Aug 22, 2010
Posts: 3611
    
  60

The cosmic scales are truly unimaginable. I especially love one description of the size of the largest known star: if you take a commercial airliner and have it go around that star (assuming melt-proof aircraft and a really big fleet of aircraft tankers, of course ), it would take a thousand years to fly around the star's equator once!
fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11471
    
  16

Something else I read recently...

When viewing the sun (btw...DON'T), the center is closer than the edges (since it is a sphere-ish like object). That means the light from the outside of the disk we see takes longer to get here than the center. The sun is so large that this makes a difference of about 2.5 seconds. In other words, the edge of the sun we see is 2.5 seconds younger than the center.
Ernest Friedman-Hill
author and iconoclast
Marshal

Joined: Jul 08, 2003
Posts: 24187
    
  34

fred rosenberger wrote:The sun is so large that this makes a difference of about 2.5 seconds.


This didn't sound right to me so I did the math -- and it checks out! Sun diameter ~ 865K miles, distance ~93M miles, time for light to reach earth ~8.3 minutes. The sun is surprisingly large compared to its distance from us -- close to 1% of the distance.
fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11471
    
  16

Phil Plait tweeted that a few weeks ago...I would hope he'd be right!!!
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: The Scale of the Universe