If you love an image (whether it's yours or someone else's) and want to make sure others get a chance to see it, you can “feature” it by choosing the “Spotlight” button.
When an image is Spotlighted, it receives enhanced visibility in premium spots throughout the site. Spotlighted images are rotated through these higher-visibility positions to ensure the best opportunity for the images to be seen by JPG users.
If you see a great photo that would make a perfect entry for one of our Shoot Out photo contests but it was uploaded by another user, now you can enter that photo in the contest and, if it wins, you get to share in the contest winnings.
Like a photo editor, if you've got an eye for great work, find it and submit it to a contest. If it wins, since you staked the entry fee, you'll take home part of the prize (the rest, of course, goes to the member who shot the image).
Sign up for JPG+ to start using collections now!
Photo license: © All rights reserved
This work began in dialogue. I had received a curriculum (History and Mathematics: Classical Studies) to respond to that was written two high school teachers (Dawn deMartino and Harry Sugar) and as I read I was fascinated by one suggested culminating work, senior students would do:
â€œNavigate a journey, using ancient navigational methods, that patterns the journey of Jason, Aeneus or Odysseus in a myth of your own creation.
1. Share versions of the story of Jason and the Argonauts. Reflect on the meaning of a personal quest. Create a myth about your personal quest.
2. Explore the ancient astronomy of the Babylonians and Phoenicians.
3. Mathematically plot the journey of Jason or Aeneus using celestial navigation.
4. Incorporate all of the above and create a presentation of the journey that presents a new myth using 5 geographic points also visited in Jason or Aeneusâ€™ journey. The myth will include the beliefs and ways of life encountered in visiting the 5 geographical locations as well as mythical creative fiction.
5. The presentation will include celestial navigation software and incorporate multimedia.â€
So I got to wondering about navigating oneâ€™s way using celestial navigation and wondered if the star maps 2000+ years ago would be different from tonight.
â€œRegarding Mary Annâ€™s question about changes in the constellations, there are two types of changes. First is the movement of the stars relative to the sun which affects the shapes or patterns of the constellations. However, 2-3
thousand years will not make a discernible in the constellations. So the ancient Greeks saw the same constellations as we see. Or as my son once said as a little boy when I showed him the stars in the backyard and then we walked to the front to go back inside, â€œDad, the stars are the same as in the backyard!â€
Second is the precession of the earthâ€™s axis of rotation. This is the change in the orientation of the axis. The axis does not point to the same spot in the sky but makes a circle with a period of 26 thousand years. This means that what we designate as the north star will change.â€
Then he included two snapshots of the northern sky from his iPhone app. The first was for the year 0000 and the second for 2010.
â€œYouâ€™ll notice that the position of the Zenith has changed but the patterns of the constellations have not. The Zenith is the spot in the sky that is directly overhead,â€ wrote Harry.
Well you canâ€™t send me images of the stars, 2000 years old or from last night and not expect a response. A pleasure to co-create this one from the images Harry sent.
Please Login or Sign Up
Login or Sign Up
Need contest credits? Get 'em here!
Payments are processed by PayPal and you will be automatically forwarded to PayPal to complete your transaction. It may take a few minutes after you complete your transaction for you contest credits to update. We will send an email to your registered email address once we have received a successful transaction from PayPal and updated you credits.
Select a Shoot Out contest credit package below.