txchnologist:

NASA Tests 3-D Printed Engine Components

3-D printing isn’t just for toys and plastic models of your head. Witness a hot fire of NASA’s newest design for rocket engine injectors, 3-D printed to up performance in a way that traditional manufacturing of the parts couldn’t attain.

The agency, which tested the experimental injectors last month at Marshall Space Flight Center in Huntsville, Ala., used a type of 3-D printing called direct laser melting. To make the parts, a machine fires a laser at metal powder under the direction of a computer design program. This deposits layers of the metal one on top of the other until the part is complete.

NASA says the technique is letting engineers build the injector out of just two parts instead of the 163 formerly needed using traditional manufacturing methods.

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jtotheizzoe:

do-math:

*realizes joy division did some real quick fs photoelectron spectroscopy for their dumb album cover*

1) Joy Division’s 1979 Unknown Pleasures album cover actually features a data visualization from the first known pulsar, PSR B1919+21, discovered by Jocelyn Bell Burnell in 1967, and discovered by the band’s drummer in the Cambridge Encyclopedia of Astronomy.

2) It is not dumb.

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I just went on the biggest adventure in my life.

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benjamingrimes:

620 Chair Programme by Dieter Rams for Vitsoe. 

Benjamin Grimes

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benjamingrimes:

The 606 Universal Shelving System. Rob Fissmer of Vitsoe let me stop by his killer home to shoot some of his amazing vintage Braun audio equipment. 

Benjamin Grimes

(this post was reblogged from benjamingrimes)

jtotheizzoe:

Message From the Moon

At first glance, these probably come across as little more than hastily painted watercolor sketches of the moon. That’s precisely what they are, actually. Attractive, yes, but certainly not high art.  

But hiding in their shadows lies a greater significance. The squiggled edges of that bleeding ink bear an observation that altered the heavens themselves. Or at the very least, our view of them.

The hand that traced these orbs belonged to none other than Galileo Galilei. They were included in his 1610 work Sidereus Nuncius (“The Sidereal Message”, which would make a great band name), the first scientific text based on telescope observations. To understand the significance of his illustrations, it helps to understand the world in which he drew them.

In 1610, cosmology, not that it had much to show for itself as a science, was still based on the ideas of Aristotle, who by this time had been dead for 18 centuries. So current! Copernicus’ observation that the Earth orbited the sun, first published in 1543, had begun to challenge Aristotelian supremacy, it wasn’t exactly a popular idea. 

Aristotle’s cosmological beliefs were based on the idea that the heavens were made of a perfect substance called “aether”, and therefore the circular motions and spherical shapes of heavenly bodies were also perfect. Earth, he claimed, was inherently imperfect, as were all the things that existed upon it. Everything in the heavens was awesome, and Earthly matter was inherently “just okay”, even if its name was Aristotle. This was one of the reasons people found Copernicus’ claims so hard to swallow. The imperfect Earth among the perfect heavens? Heresy!

Enter Galileo and his humble 20x telescope, in 1609. At the time, in Aristotelian fashion, the moon, being of the heavens, was assumed to be a perfect sphere, its dark and light areas just splotches upon the billiard-ball-smooth lunar surface. I imagine it took Galileo about 7 seconds of lunar observation to realize that was not the case.

The terminator, that line that separates the moon’s illuminated face from its dark one, is jagged as a crocodile’s smile. I’ve seen it myself through modern telescopes, and I must say, it’s really something to witness how light and shadow break over a distant crater’s edge. Galileo painted this in his sketches above, inferring that the moon in fact had a rough and crater-marked face. This meant that not only was Earth not the center of the universe, as Copernicus had shown, but the heavens themselves were imperfect, just like Earth.

Scientists would go on to realize that the orbits of heavenly bodies were not perfect circles, nor were the bodies perfect spheres, and that everything up there is made of the same stuff as everything down here. It was either a huge demotion for the heavens, or a great promotion for Earth, I’m not sure.

Galileo’s Sidereus Nuncius also included newly detailed maps of the constellations and the mention of four moons of Jupiter (although detailed observations of those were still centuries away), but it was his drawings of our moon that bore the most impact on future astronomical science, realigning the heavens with a single stroke of the brush.

Keep on drawing, and keep on looking up.

(You can read an English translation of Sidereus Nuncius here. If you’re hungry for more selenology, tour through these historical maps of the moon. Tip of the telescope to Steve Silberman for tweeting these sketches.)

(this post was reblogged from jtotheizzoe)

adisasterpiece:

gardenrouteshorebirds:

Donate to join us in making sure it’s always “a day at the beach” for shorebirds!

_______________

Hi y’all! As you know…I’m a bona-fide bird nerd, particularly with conservation of coastal species, like shorebirds & seabirds. So two things very near & dear to me are, of course — birds & beaches!

South Africa’s gorgeous coasts support a large number of our beloved birds. They also are the fastest developing regions in the country (& the world!). We are seeing shorebirds disappear around the globe, and alarmingly fast (I’m talkin’ decreases like 40-60% of one of my favorites, White-fronted Plovers, in the W. Cape!), mostly due to habitat destruction and other human-caused issues. Since wildlife like shorebirds can tell us so much about the status of our coasts, finding effective conservation and awareness solutions is becoming incredibly urgent.

I’ve been offered a fantastic project for my Master’s (at Univ. of Cape Town, partnering with The Nature’s Valley Trust — a great South African environmental non-profit) to study endemic shorebirds in high-tourism coastal areas, using the research to balance human activity, reduce impacts of major threats, and keep our beaches healthy.

We’re backed by BirdLife South Africa, Cape Nature, Knysna Toyota, and local conservation & bird clubs as necessary research for the region (and the birds! and communities!). Now I need YOUR help to seal the deal.

Here’s how you can help this important project — We are still in need of funding for a vehicle, research staff, and field equipment. Check out how to support this research project for the conservation of our beaches and the shorebirds that call them home here! 

Please contribute and help us spread the word far & wide!

Follow & Like for updates, plus you’ll find a ton of rad information there, too!

This is where my (unpaid) blood, sweat, and tears have been focused this entire year (and there’s been a lot of all of that, phew)! I have been painstakingly working to gain the support make this happen — developing the project, networking with appropriate researchers, officials, and groups, applying for countless grants, awards, and sponsorships. I have put everything I possibly can into this, that is how important and necessary I absolutely know this is. PLEASE SIGNAL BOOST THE HECK OUT OF THIS!

(this post was reblogged from adisasterpiece)
spaceplasma:

Quick Rosetta update:

This is the shape model of comet 67P/Churyumov-Gerasimenko. From the images taken on 14 July, the OSIRIS team has begun modelling the comet’s three-dimensional shape. The animated gif presented here covers one full rotation of the nucleus around its spin axis, to emphasise the lobate structure of the comet. This model will be refined as more data becomes available – it is still a preliminary shape model and some features may be artefacts.

More information: here
Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

spaceplasma:

Quick Rosetta update:

This is the shape model of comet 67P/Churyumov-Gerasimenko. From the images taken on 14 July, the OSIRIS team has begun modelling the comet’s three-dimensional shape. The animated gif presented here covers one full rotation of the nucleus around its spin axis, to emphasise the lobate structure of the comet. This model will be refined as more data becomes available – it is still a preliminary shape model and some features may be artefacts.

  • More information: here

Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

(this post was reblogged from spaceplasma)

ageofdestruction:

eagle: Earthrise, photographed from Apollo 11, July 1969.

23 Hasselblad photographs taken from lunar orbit, sometime 19th-22nd July.

Image credit: NASA/JSC, c/o LPI. Animation: AgeOfDestruction.

(this post was reblogged from beexgood)