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Sir William Lawrence Bragg (1890-1971)
worked on crystal structure and x rays

h/t:kavehidea.jux.com

Sir William Lawrence Bragg (1890-1971)

worked on crystal structure and x rays
The most beautiful thing we can experience os the mysterious. It is the source of all true art and science. (Albert Einstein 1879-1955)
h/t: Kavehidea.jux.com

The most beautiful thing we can experience os the mysterious. It is the source of all true art and science. (Albert Einstein 1879-1955)

h/t: Kavehidea.jux.com

trigonometry-is-my-bitch:

"Glassified" Ruler by MIT Media Lab Automatically Measures Angles, Volume, and Shape Properties.
[source]

trigonometry-is-my-bitch:

"Glassified" Ruler by MIT Media Lab Automatically Measures Angles, Volume, and Shape Properties.

[source]

exploratorium:

Perception and perspective!

Performed by music teacher L. Hayek as part of Teacher of the Year speech, Snow Hill, NC Performed by music teacher L. Hayek as part of Teacher of the Year speech, Snow Hill, NC

Lyrics (written by LH):
The sun burns bright on the playground today, not a student to be seen.
A kingdom of education, and Mrs. Hagan is our queen (she’s our principal)
I hear their voices like they were here just yesterday…
We can’t keep them out, they’ll be here Monday.

Don’t let them in, my room’s not clean,
I need more time to plan with my team,
Ready or not, they must be taught…
Ready or not…

Here we go! Here we go!
Let’s teach that Common Core! (or not?)
Here we go! Here we go!
With assessments galore!
I’m prepared for all the germs they’re gonna share!
Bring the school year on…
You get a little bored at home anyway.

It’s funny how a summer can make them forget how to walk in the hall,
And even with 10 weeks off, they didn’t read at all! (seriously?!)
It’s time to see what they can do, to test their knowledge, and hope we can break through!
It’s the honeymoon, they all get along…but not for long…

Here we go! Here we go!
Here’s hoping their pants stay dry!
Here we go! Here we go!
You know you’ll make someone cry.
Here I stand with lessons planned!
Bring the school year on…

(interlude)

Bring on the data, rubrics, and coffee by the pound,
My head is spinning fast with acronyms swirling all around!
Let’s hope we teach them more than just what’s on the test,
We’ll love and teach them well, at least we’ll try our best!

Here we go! Here we go!
As we rise at the crack of dawn,
Here we go! Here we go!
Our sweet summer freedom is gone.
Here I stand, class rosters in my hand,
Bring the school year on…
Admit it, we all love this job anyway.

futurescope:

Hoverbike - Robot rides Drone

You’ve probably heard about Chris Malloys Drone 3 Hoverbike on Kickstarter (5 days to go). A small-scale drone version of the original hoverbike - a working flying motorcycle. I’ve not paid much attention to the kickstarter project (they reached their goal btw), but their video above shows some pretty decent pizzadrone delivery use cases. The drone stabilization is impressive.

[Hover-Bike Project]

Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism

SU(N) symmetry can emerge in a quantum system with N single-particle spin states when spin is decoupled from inter-particle interactions. Here, we report a spectroscopic observation of SU(N ≤ 10) symmetry in 87Sr taking advantage of the high measurement precision offered by an ultra-stable laser. By encoding the electronic orbital degree of freedom in two clock states, while keeping the system open to as many as 10 nuclear spin sublevels, we probe the non-equilibrium two-orbital SU(N) magnetism via Ramsey spectroscopy of atoms confined in an array of two-dimensional optical traps. We study the spin-orbital quantum dynamics and determine the relevant interaction parameters. This work lays the groundwork for using alkaline-earth atoms as test-beds for important orbital models.

(P)h/t: physicsworld.com

Nasa’s Stardust mission snares first dust from beyond the solar system

Seven particles captured by the Stardust Interstellar Dust Collector and returned to Earth for laboratory analysis have features consistent with an origin in the contemporary interstellar dust stream. More than 50 spacecraft debris particles were also identified. The interstellar dust candidates are readily distinguished from debris impacts on the basis of elemental composition and/or impact trajectory. The seven candidate interstellar particles are diverse in elemental composition, crystal structure, and size. The presence of crystalline grains and multiple iron-bearing phases, including sulfide, in some particles indicates that individual interstellar particles diverge from any one representative model of interstellar dust inferred from astronomical observations and theory.

(http://www.sciencemag.org/content/345/6198/786)

Atheist Bus Campaign



Ariane Sherine and Richard Dawkins at the campaign launch
"There’s probably no god. Now stop worrying and enjoy your life."

Atheist Bus Campaign

Ariane Sherine and Richard Dawkins at the campaign launch

"There’s probably no god. Now stop worrying and enjoy your life."

Climate change
Zzz …

Climate change

Zzz …

Daniel Lozakovitj, 12 years plays Winter by Antonio Vivaldi.
Stockholm Sinfonietta with Gustaf Sjökvist.

About Daniel Lozakovitj: https://kavehidea.jux.com/3662372