Nothing more fun than science at home
What you are seeing here is an example of solargraphy; a pinhole photographic technique using long exposures and photosensitive paper. This technique is commonly used to track the movement of the Sun across as landscape, as is the case in these 4 images.
Here we have solargraphs taken from different latitudes across Europe, for a period of around 120 days in late autumn and winter. These images demonstrate effectively that the Sun traverses the sky at different elevations dependent on latitude. We can note that the elevation of the Sun pathways in Bodo, Norway (approx. 67 degrees north) and Oslo, Norway (approx. 60 degrees north) are quite close to the horizon. Contrastingly, the solar paths for Ondrejov, Czech Republic (50 degrees north) and for Palma de Mallorca, Spain (approximately 39 degrees north) are much higher in the sky.
Image courtesy of Maciej Zapior
If you want to make a solargraph here are easy instructions: [petapixel.com]
11
Enjoy being online again!
Welcome to the community of good people who base their values on evidence and appreciate civil discourse - the social network you will enjoy.Create your free account
2 comments
Feel free to reply to any comment by clicking the "Reply" button.I've heard them talk of doing this on Skeptics Guide. Those are nice pictures of it.
Stephanie99
Level 8
Dec 13, 2018
1
Recent Visitors 33
Photos 136 More
Posted by racocn8I saw some articles on meteorite composition and ended up with this picture.
Posted by racocn8Here are some photos of eggs deposited on the underside of leaves.
Posted by racocn8Here are some photos of eggs deposited on the underside of leaves.
Posted by racocn8Here are some photos of eggs deposited on the underside of leaves.
Posted by racocn8Here are some photos of eggs deposited on the underside of leaves.
Posted by racocn8Here are some photos of eggs deposited on the underside of leaves.
Posted by Slava3That makes me nervous
Posted by Slava3So we are part of a Cosmic ecosystem?
Posted by SergeTafCamNot too long ago I had the opportunity to take a couple of pictures of a peacock's feather.
Posted by SergeTafCamNot too long ago I had the opportunity to take a couple of pictures of a peacock's feather.
Posted by SergeTafCamWhat's your favorite color?
Posted by SergeTafCamWhat's your favorite color?
Posted by SergeTafCamWhat's your favorite color?
Posted by SergeTafCamWhat's your favorite color?
Posted by SergeTafCamWhat's your favorite color?
Posted by SergeTafCamExciting times.