The Orbital Sciences Corporation Antares rocket, with the Cygnus spacecraft onboard, is rolled out of the Horizontal Integration Facility (HIF) to begin the approximately half-mile journey to launch Pad-0A, Thursday, July 10, 2014, at NASA’s Wallops Flight Facility in Virginia. The Antares will launch with the Cygnus spacecraft filled with over 3,000 pounds of supplies for the International Space Station, including science experiments, experiment hardware, spare parts, and crew provisions. The Orbital-2 mission is Orbital Sciences’ second contracted cargo delivery flight to the space station for NASA.
In case you missed it earlier, here’s this week’s video!
This week I asked a question I suspect not many people ask: Why is your brain in your head? You know, instead of elsewhere, tucked away safe and warm down with all your other guts?
The answer lies a few hundred million years back on your evolutionary tree, thanks to a family of genes that you share with everything from fruit flies to foxes to fish.
The awesome papercraft sequences were done by Vanessa from BrainCraft. I make an appearance in her video this week, where I help explain how your brain grew from just a few cells into the biological wonder that’s currently allowing you to read this post. I can’t get enough of this GIF from her vid:
Watch the BrainCraft video below:
Applicable to my life this week
An invisible force at the center of our galaxy
Scientists have theorized that our Milky Way galaxy has a super massive black hole at the center of it, but how did this idea come about? How do astronomers measure something that has actually never been seen in our telescopes?
Above is an animation of star movements in our galaxy over the past 16 years. They all orbit around a point that emits no light in our galaxy. We can measure the mass of these stars and calculate that their orbits require an object with the mass of 4 million Suns. So far this points to a super massive black hole in our galaxy.
The nothing made of something at the center of everything…
This headline got me thinking… is there a force that is not invisible? I mean we’re all comfortable with the idea that gravity, magnetism, and electrical forces are invisible. We can see their effects, but you can’t point to a force.
Even when it comes to tension, friction, or applied force, we always discuss the effects of the force when we discuss them. The force itself is not a thing that we can point to or see. Even pushing a chair across a room, if we could zoom into the atoms of my hand pressing near the atoms of the chair, we would ultimately see nothing there, just space. The electrons in my hand are in an odd sense “aware” of the electrons in the chair, and they repulse each other, due to electromagnetic force (also invisible) and the exclusion principle.
So really, isn’t all force invisible? Someone call Yoda.
|—||Antonio Damasio, citado en “Pensar rápido, pensar despacio”, Daniel Kahneman, Debolsillo, Barcelona, 2013, p.186 (via aabrilru)|
|—||Jonathan Haidt, “The emotional dog and its rational tail: a social institutionist approach to moral judgment”, Psychological Review 108 (2001), pp. 814-834, citado en “Pensar rápido, pensar despacio”, Daniel Kahneman, Debolsillo, Barcelona, 2013, p. 187. (via aabrilru)|
Kate Winslet stuns in a Ralph Lauren coat, in Harper’s Bazaar. #RLCelebs
Stonehenge this afternoon #stonehenge #megaliths
|—||Walt Whitman (via feellng)|