Electrical activity of the Heart
Electrical activity of the Heart
MUTUALLY ASSURED DESTRUCTION
In the constellation of Serpens Caput (Serpent’s Head), this tightly-packed group of galaxies is slowly tearing itself apart.
These beautiful scattered jewels are collectively known as Seyfert’s Sextet, but although the name implies “six,” only four of the visible galaxies are locked in the dance of death. The still-intact spiral galaxy near the middle of the image is about five times more distant than the main group, and the sixth member is actually a tidal tail resulting from gravitational interactions.
The gravitational forces that are warping and blurring these galaxies may someday pull them together into one single galaxy, but such cosmic changes take time. The gravitational interactions we see here happened over billions of years, and the dance is likely to last billions more.
Image: NASA/ESA, J. English (U. Manitoba), S. Hunsberger, S. Zonak, J. Charlton, S. Gallagher (PSU), and L. Frattare (STScI)
Regulators may let companies store radioactive rods in on-site pools for up to 120 years.
Abbot Handerson Thayer and others, INSECTS— Colored beetles, landscape, study folder for book Concealing Coloration in the Animal Kingdom, n.d., various media and collage on paperboard, Smithsonian American Art Museum, Gift of the heirs of Abbot Handerson Thayer
On September 10th, just a few days before the FCC’s net neutrality comment deadline, internet users and tech companies will unite for the “Internet Slowdown” to show the world what’s at stake if we lose net neutrality, the “First Amendment of the Internet.”
We need everyone’s help right now to make this huge. Here’s what you can do right now to help make the Internet Slowdown go viral:
1. Forward this post to your friends and share the image with your social networks using the buttons above. We need people across the web to know about the slowdown so they can join on September 10th.
3. If you can, please chip in $10 (or more!) to help make the Internet Slowdown possible. We’re building tools that any website or organization can use to promote their own net neutrality action, because we care about the movement. But it’s not cheap! Help us sustain this critical work.
5. If you have your own website or app, put the Internet Slowdown widget on it. If you really want to be an Internet Defender, help out by using your own website to spread the word. It’s as easy as adding the widget/modal code found here:
Exciting news! The Internet Slowdown net neutrality protest planned for September 10th is really taking off. This morning, a dozen of the world’s largest websites announced that they’re joining in a big way. Sites you know and love like Etsy, Kickstarter, Wordpress, Vimeo, Mozilla, Namecheap, Foursquare, imgur, and reddit.
Will you join too?
Scientists Find Evidence for Tectonic Plates on Jupiter’s Moon Europa
Scientists have found evidence of plate tectonics on Jupiter’s moon Europa. This indicates the first sign of this type of surface-shifting geological activity on a world other than Earth.
Researchers have clear visual evidence of Europa’s icy crust expanding. However, they could not find areas where the old crust was destroyed to make room for the new. While examining Europa images taken by NASA’s Galileo orbiter in the early 2000s, planetary geologists Simon Kattenhorn, of the University of Idaho, Moscow, and Louise Prockter, of the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, discovered some unusual geological boundaries.
"We have been puzzled for years as to how all this new terrain could be formed, but we couldn’t figure out how it was accommodated," said Prockter. "We finally think we’ve found the answer."
Plate tectonics is the scientific theory that Earth’s outer layer is made up of plates or blocks that move, which accounts for why mountain and volcanoes form and earthquakes happen…
(read more: Jet Propulsion Laboratory)
What Makes Humans Special?
Hallmark traits of the human body did not all arise anew in our species. Instead they emerged piecemeal in our forebears over millions of years. Many of these traits seem to have helped support two defining trends in our evolution: upright locomotion and tool use.
“Don’t sit this one out. Do something. You are by accident of fate alive at an absolutely critical moment in the history of our planet.”
This is one of the most baffling illusions I’ve ever seen.
Take a look at the gif above. First, look at any yellow dot as the figure moves. The yellow dot remains present and stationary.
If you concentrate on all three yellow dots, they remain there as well.
But now concentrate on the central green dot. You will see one or more of the yellow dots disappearing and then reappearing sporadically. They are not—this is an optical illusion.
The dots remain and your brain simply doesn’t register their presence from time to time. Weird, eh?