Video 4684
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Posted 44 minutes ago

(Source: meereeneseknot)

via iamheathen
Video 1725
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Posted 4 hours ago

(Source: himymthebest)

via elnotario
Quote 8718
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Posted 1 day ago
People think dreams aren’t real just because they aren’t made of matter, of particles. Dreams are real. But they are made of viewpoints, of images, of memories and puns and lost hopes.

Neil Gaiman (via spinals)

(Source: winterkristall)

via notfemme
Video 884
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Posted 1 day ago

scinerds:

Solid or Liquid? Physicists Redefine States of Matter

Why can you stand on a glacier but not the ocean?

The answer seems simple enough: Liquids flow. Solids don’t. The atoms in liquids can slosh around. In solids, they fall lockstep into a crystal lattice. A crystal’s endlessly repeating pattern is so stable that it takes a considerable infusion of energy to make the atoms break rank. Or so physics textbooks say.

But this long-accepted explanation for the rigidity of solids fails to account for quasicrystals — bizarre solids first discovered in the lab in 1982 and found in nature in 2009. Atoms in quasicrystals are arranged in patterns that never repeat, but the material is nonetheless rigid. So is glass, an amorphous mass of stationary atoms that behaves like a solid but, upon closer inspection, looks more like a liquid frozen in time.

“Glasses have been around for thousands of years,” said Daniel Stein, a professor of physics and mathematics at New York University. “Chemists understand them. Engineers understand them. From the point of view of physics, we don’t understand them. Why are they rigid?”

Even crystalline solids such as glaciers resist categorization, as their atoms can flow, albeit very slowly. And sometimes the reverse also seems true: The ocean feels rigid if you jump onto it from a tall enough glacier. What, then, is the difference between a liquid and a solid?

Physicists in France and the United States are proposing new answers to this fundamental question. As outlined in a March article in the Notices of the American Mathematical Society, the researchers have identified two characteristics of materials that dramatically change form at the intersections of temperature and pressure where liquids turn solid. These characteristics, the physicists say, could define the difference between the two states of matter.

Charles Radin, a mathematical physicist at the University of Texas at Austin, and his former student, David Aristoff, now a mathematician at the University of Minnesota, argue that the main difference between liquids and solids is the way they respond to shear, or twisting forces. Liquids barely resist shear and can easily be sloshed, whereas solids — regardless of whether they are crystals, quasicrystals or glass — resist attempts to change their shape.

The liquid-solid phase transition, Radin and Aristoff reason, should therefore be marked by the “shear response” of a material jumping from zero to a positive value. And they observed just such a jump for a two-dimensional model material, in which atoms are represented by disks: At low densities corresponding to the material’s liquid phase, it showed no response to shear, but when the disks were densely packed, like the atoms in a solid, shear caused the material to expand. “The crossover where it shows this effect is exactly the density where the system becomes crystalline,” Radin said. “We propose this as a different way of understanding what a solid is.”

Full Article

via anengineersaspect
Photo 188791
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Posted 1 day ago
chloweafterdark: casualcynic: So my mom and I have been working the same waitress job for 5-6 years now. She had been waitressing years before, but this is recently. Anyway, about… 15 minutes ago this guy she waited on left and told her to take care. Just that. Prior to this she had talked to him about Italy. Her people are from Florence, this and that, and she said she’s never been. She’s got 8 years of art education and she’s working a waitress job. It’s pretty… Sad and disappointing, I guess. Her and my father divorced 6 years ago and she hasn’t had a real job ever. Just been stuck in a small town she’s not from. This man who we have never seen before tipped her 1000 dollars for a trip to Italy. Walked out, not another word. …you know. Just when I start to lose faith in humanity….Hm. He forgot the forty two cents though Zoom

chloweafterdark:

casualcynic:

So my mom and I have been working the same waitress job for 5-6 years now. She had been waitressing years before, but this is recently. Anyway, about… 15 minutes ago this guy she waited on left and told her to take care. Just that. Prior to this she had talked to him about Italy. Her people are from Florence, this and that, and she said she’s never been. She’s got 8 years of art education and she’s working a waitress job. It’s pretty… Sad and disappointing, I guess. Her and my father divorced 6 years ago and she hasn’t had a real job ever. Just been stuck in a small town she’s not from.

This man who we have never seen before tipped her 1000 dollars for a trip to Italy. Walked out, not another word.

…you know. Just when I start to lose faith in humanity….Hm.

He forgot the forty two cents though

via leonmcgann
Video 127472
Notes
Posted 2 days ago

Sometimes people have a hard time understanding what a happy relationship between two people who obvs think the other is awesome looks like.

We think this is one great (and holy bananas, so freaking hilarious) example.

(Source: hellyeahscarleteen)

via elnotario
Photo 3
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Posted 3 days ago
anengineersaspect: MATH PSYCHOLOGY Lack of math can cause psychological problems… (An Engineer’s Aspect)

anengineersaspect:

MATH PSYCHOLOGY

Lack of math can cause psychological problems…

(An Engineer’s Aspect)

via anengineersaspect
Photo 60
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Posted 3 days ago

(Source: trequartista1)

via fuck-bitches-get-money
Photo 21
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Posted 5 days ago

via fuck-bitches-get-money
Link 2
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Posted 5 days ago

Wanderings: Exhaust Your Concerns

ichrider:

The senior engineer gave me this advice about a week ago. I designed a roof slab as part of an EWB project 2 weeks ago and just got feedback about it from another engineer who had just taken their PE exam. Basically, the engineer who reviewed my work and I were having a bit of a disagreement on…

via ichrider