Open Photography Forums  
HOME FORUMS NEWS FAQ SEARCH

Go Back   Open Photography Forums > OPF Welcome Hall > Breaking News

Breaking News Updates, innovations, equipment: moderated!

Reply
 
Thread Tools Display Modes
  #1  
Old April 1st, 2011, 12:36 AM
Asher Kelman Asher Kelman is offline
OPF Owner/Editor-in-Chief
 
Join Date: Apr 2006
Posts: 32,725
Default Potato view of the Earth!

Well the earth is a huge magnet, The European space craft is assembling a new view of the earth that reflects the strength of our planet's magnetic field. So it really means that if you drop a penny from a plane at exactly 10,000 feet at different parts of the globe, it will arrive at different times to the ground.


Put it another way, other things being equal, work at different locations takes different expenditures of energy. Read more here.
__________________
Follow us on Twitter at @opfweb

Our purpose is getting to an impressive photograph. So we encourage browsing and then feedback. Consider a link to your galleries annotated, C&C welcomed. Images posted within OPF are assumed to be for Comment & Critique, unless otherwise designated.
Reply With Quote
  #2  
Old April 1st, 2011, 02:56 AM
Tom Robbins Tom Robbins is offline
Senior Member
 
Join Date: Jun 2006
Posts: 836
Default

Asher, it looks as if Sri Lanka is the place to be when trying to set a new record for the high jump.
__________________
Tom Robbins
West of Lake Michigan, East of Mississippi River
Reply With Quote
  #3  
Old April 1st, 2011, 05:24 AM
Cem_Usakligil Cem_Usakligil is offline
Senior Member
 
Join Date: Jun 2006
Posts: 5,946
Default

Hi Asher,

Till Doug is awake, let me use the crayon rouge on his behalf.
Quote:
Originally Posted by Asher Kelman View Post
Well the earth is a huge magnet, The European space craft is assembling a new view of the earth that reflects the strength of our planet's magnetic field. So it really means that if you drop a penny from a plane at exactly 10,000 feet at different parts of the globe, it will arrive at different times to the ground
I am sure you must have meant the gravity field of the earth instead of magnet/magnetic field above.

On another note, a penny dropped at the same altitude may (possibly shall) arrive at different times even when the gravity is the same. There are other factors such as the magnitude of the friction against the size/weight of the free falling object which cannot not be negligable for a penny. Humidity, air pressure, wind speeds, etc will all cause variations.

Cheers,
__________________
Kind Regards, Cem

flickr
website
Reply With Quote
  #4  
Old April 1st, 2011, 10:59 AM
Asher Kelman Asher Kelman is offline
OPF Owner/Editor-in-Chief
 
Join Date: Apr 2006
Posts: 32,725
Default

Quote:
Originally Posted by Cem_Usakligil View Post
Hi Asher,

Till Doug is awake, let me use the crayon rouge on his behalf.

I am sure you must have meant the gravity field of the earth instead of magnet/magnetic field above.

On another note, a penny dropped at the same altitude may (possibly shall) arrive at different times even when the gravity is the same. There are other factors such as the magnitude of the friction against the size/weight of the free falling object which cannot not be negligable for a penny. Humidity, air pressure, wind speeds, etc will all cause variations.

Cheers,
Cem,

The great thing about OPF is the depth knowledge! Thanks for correcting me! As for the other factors, all things being equal, they would be normalized for our imaginary test.



Asher
__________________
Follow us on Twitter at @opfweb

Our purpose is getting to an impressive photograph. So we encourage browsing and then feedback. Consider a link to your galleries annotated, C&C welcomed. Images posted within OPF are assumed to be for Comment & Critique, unless otherwise designated.
Reply With Quote
  #5  
Old April 2nd, 2011, 07:00 AM
Doug Kerr Doug Kerr is online now
Senior Member
 
Join Date: May 2006
Location: Alamogordo, New Mexico, USA
Posts: 8,194
Default

Hi, Cem,

Quote:
Originally Posted by Cem_Usakligil View Post
Hi Asher,

Till Doug is awake, let me use the crayon rouge on his behalf.

I am sure you must have meant the gravity field of the earth instead of magnet/magnetic field above.
Funny - I just discovered this post, and was about to make the same comment, and then saw that you had taken care of it.

Thanks.

Best regards,

Doug
Queleque fois, le crayon rouge dort!
Reply With Quote
  #6  
Old April 9th, 2011, 02:34 AM
Timothy Bearden Timothy Bearden is offline
Member
 
Join Date: Oct 2010
Posts: 46
Default

I like a potato. Potato earth....hmmmm.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Using Live View for fine focus Charles L Webster Canon Eos Mount DSLRs 5 July 10th, 2010 10:33 PM
Hi from One Day On Earth Abigail Bassett Introduce Yourself 7 June 16th, 2010 08:44 PM
Fun: E-3 Live View and Textures Robert Watcher Photography as Art 9 June 7th, 2009 09:59 AM
Live View Stuff Wil Andrews Canon Eos Mount DSLRs 1 January 24th, 2008 06:08 AM
The 1DsMKIII as a View Camera, using Live View & a TSE Lens? Will Thompson Medium Format & Large Format Cameras 15 October 17th, 2007 01:08 AM


All times are GMT -7. The time now is 07:28 PM.


Posting images or text grants license to OPF, yet of such remain with its creator. Still, all assembled discussion 2006-2017 Asher Kelman (all rights reserved) Posts with new theme or unusual image might be moved/copied to a new thread!