My Frisk Cosplay for Jekyll Con 2015! Everything turned out great even though I wasn’t feeling my best.
“This Is Why You’re Always So Tired”
Galaxy NGC 474: Shells and Star Streams
Image Credit: CFHT, Coelum, MegaCam, J.-C. Cuillandre (CFHT) & G. A. Anselmi (Coelum)
What’s happening to galaxy NGC 474? The multiple layers of emission appear strangely complex and unexpected given the relatively featureless appearance of the elliptical galaxy in less deep images. The cause of the shells is currently unknown, but possibly tidal tails related to debris left over from absorbing numerous small galaxies in the past billion years. Alternatively the shells may be like ripples in a pond, where the ongoing collision with the spiral galaxy just above NGC 474 is causing density waves to ripple through the galactic giant. Regardless of the actual cause, the featured image dramatically highlights the increasing consensus that at least some elliptical galaxies have formed in the recent past, and that the outer halos of most large galaxies are not really smooth but have complexities induced by frequent interactions with – and accretions of – smaller nearby galaxies. The halo of our own Milky Way Galaxy is one example of such unexpected complexity. NGC 474 spans about 250,000 light years and lies about 100 million light years distant toward the constellation of the Fish (Pisces).
If this 1908 photograph reminds you of a certain Dutch painter…you’re right! Photographer Guido Rey was inspired by Vermeer’s 1600s compositions.
Solidarity!
I made a mini comic about a few of the similarities between ADHD and Autism, Featuring Valerie and Sophie (and Zacharie)
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It was a weekend dedicated to a variety of activities. Life has a way of throwing curves. Sketched a little, then I pulled out paper to begin...there is nothing like a blank white surface. The paper tonight seems to say "Do something."
Beautiful...
Art G.Shvecova (Design graphics - Holographic Aesthetic galaxy_060318)
The first West Coast SpaceX launch captured by photographer Dylan Schwartz.
teaching children that they are allowed to walk away and cool off if they are feeling overwhelmed might literally save their life as teens/adults
Eduard “Santa” Gorey and kitty.
If one remembers this particular episode from the popular sitcom ‘Friends’ where Ross is trying to carry a sofa to his apartment, it seems that moving a sofa up the stairs is ridiculously hard.
But life shouldn’t be that hard now should it?
The mathematician Leo Moser posed in 1966 the following curious mathematical problem: what is the shape of largest area in the plane that can be moved around a right-angled corner in a two-dimensional hallway of width 1? This question became known as the moving sofa problem, and is still unsolved fifty years after it was first asked.
The most common shape to move around a tight right angled corner is a square.
And another common shape that would satisfy this criterion is a semi-circle.
But what is the largest area that can be moved around?
Well, it has been conjectured that the shape with the largest area that one can move around a corner is known as “Gerver’s sofa”. And it looks like so:
This sofa would only be effective for right handed turns. One can clearly see that if we have to turn left somewhere we would be kind of in a tough spot.
Prof.Romik from the University of California, Davis has proposed this shape popularly know as Romik’s ambidextrous sofa that solves this problem.
Although Prof.Romik’s sofa may/may not be the not the optimal solution, it is definitely is a breakthrough since this can pave the way for more complex ideas in mathematical analysis and more importantly sofa design.
Have a good one!