Check out Planets, an interactive solar system visualizer. It lets you change the focal point so you can see the planetary motions as if you were standing on any of the planets. A great way to understand retrograde motion.
Thanks Paul, for the link.
Thanks Paul, for the link.
Here's a fun one for Friday. Humans! by Reza Rasoli. Reminds me of The Matrix when Mr. Smith calls the humans a virus on the world.
Humans! is a 60 second global awareness PSA sensationalizing the excessive, all-consuming nature of the human being. This cute and naive Earth stands no chance against such an insatiable parasite. Witness its utter demise in a fun and sickening kind of way.Thanks Hannu for the link!
In this animation, catalogued space debris are shown accumulating around Earth in 4-year increments, including payloads, rocket bodies, and fragments. While the debris objects are not shown to scale, the representation of their density is accurate.
If you have Windows, you can see this high-res version with Microsoft HDView, but it doesn't work on a Mac. I was able to see it with Parallels running on my MacBook.
A computer-generated artist's impression released by the European Space Agency (ESA) depicts an approximation of 12,000 objects in orbit around the Earth. A communications satellite belonging to US company Iridium collided with a defunct Russian military satellite on February 12, 2009. (ESA via AFP - Getty Images/)Thanks Karen for sending in the link!
Christopher Taylor posted this image on his Catalogue of Organisms blog, and it has raised a little controversey about the details. The intent is that the relative size of each organism in the image is representative of the number of species in that group. So the large fly represents the huge number of insect species. Towards that intent, I believe the image succeeds, but I have read some disagreement about the specific numbers used to develop the image.
Two very similar images with some differences are also available. One from the University of Sydney:
In case you're wondering where the mammals are, we're represented by the reindeer cowering underneath the mushroom.
And another on from Cornell University: (this link wasn't working for me)
No matter which is exactly correct (and there's no way to tell), you get the point how small number of species of mammals are compared to the others.
Thanks Kevin, for sending in the link!
This is over my head, but this radial family tree shows the diversity of dinosaur species. It's used in the article to help challenge the theory that dinosaurs went through a rapid decline during the Cretaceous period. A brief summary is online over at The New Scientist.
Furthermore, we conclude that dinosaurs did not experience a progressive decline at the end of the Cretaceous, nor was their evolution driven directly by the Cretaceous Terrestrial Revolution (KTR).Thanks for the link Michael!
Jaime Arvizu, a student at the Vancouver Film School, sent me a link to this infographic video that he and his team mates (Tyler Lemermeyer and Leo Aguiar) created for their Motion Design class. You can find a high resolution version at Jaime's blog.
Thanks for sending this in Jaime, I love it!
Forty years ago, advances in fertilizers and pesticides boosted crop yield and fed a growing planet. Today, demand for food fueled by rises in worldwide consumption of meat and protein is again outpacing farmers ability to keep up. It's time for the next Green Revolution.Thanks for the link Ethel! Here are a few more. Check them all out on Wired.com.
This one makes a great poster! Thanks Roi for sharing in the comments.