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doccywhomst · 2 days ago
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can i just say: there's something lovely about the idea of a tardis key.
for most of the show, it was necessary to have one. the tardis needed to be locked like an ordinary police box, and if locked, it was incredibly difficult to get into.
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(unless you steal the whole-ass lock, which the sensorites totally did. we like to pretend that it can't happen again.)
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anyway: this meant that companions needed to receive keys to the tardis in case of emergencies. thus, the key-giving ceremony began to crop up, and it's very, very soft.
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part of the significance of this is that it represents vulnerability. the tardis is an extremely powerful bit of kit and it's the doctor's only home. she's their wife, even, in a roundabout way. plus, the tardis can technically be summoned with the key alone, so you can imagine how important this thing is. in the wrong hands, it can do a lot of damage on many levels.
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and here's the real kicker: technically, the key isn't completely necessary anymore, and i really like this. it gives the tardis a new sense of agency. rather than being a pure machine - something to lock and unlock, something without a voice - she opens up to people when she chooses to. the key remains a rite of passage for companions, and it's still an important symbol of vulnerability, but now the tardis gets to make the choice as well.
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i have so many feelings about this. i just love my small alien and their enormous sentient dimension wife.
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wuyus · 2 days ago
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Get To Know Me ✧ Favourite Animated Shows [3/10]
↳ Jujutsu Kaisen 呪術廻戦 - Dir. Park Sunghoo 朴 性厚 (2020-)
I don't know how I'll feel when I'm dead, but I don't want to regret the way I lived.
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doccywhomst · 2 days ago
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every doctor's costume as a horrible gucci outfit
i used my powers for evil this time. buckle up, chucklefucks. here we go -
one, two, and three:
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four, four (series 18), and five:
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six, seven, and eight:
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shalka, nine, and ten:
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eleven, twelve, and thirteen:
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ruth and two iris wildthymes, just for fun:
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okay, and here are some that actually fuck severely, i wouldn't mind future costumes inspired by these:
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i spent hours sifting through the worst fits you've ever seen in your LIFE for these, but the sacrifice was worth it
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thetimeandspaceblog · 2 years ago
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Black Hole Image Makes History; NASA Telescopes Coordinated Observations
A black hole and its shadow have been captured in an image for the first time, a historic feat by an international network of radio telescopes called the Event Horizon Telescope (EHT). EHT is an international collaboration whose support in the U.S. includes the National Science Foundation.
A black hole is an extremely dense object from which no light can escape. Anything that comes within a black hole’s “event horizon,” its point of no return, will be consumed, never to re-emerge, because of the black hole’s unimaginably strong gravity. By its very nature, a black hole cannot be seen, but the hot disk of material that encircles it shines bright. Against a bright backdrop, such as this disk, a black hole appears to cast a shadow.   
The stunning new image shows the shadow of the supermassive black hole in the center of Messier 87 (M87), an elliptical galaxy some 55 million light-years from Earth. This black hole is 6.5 billion times the mass of the Sun. Catching its shadow involved eight ground-based radio telescopes around the globe, operating together as if they were one telescope the size of our entire planet. 
“This is an amazing accomplishment by the EHT team,” said Paul Hertz, director of the astrophysics division at NASA Headquarters in Washington. “Years ago, we thought we would have to build a very large space telescope to image a black hole. By getting radio telescopes around the world to work in concert like one instrument, the EHT team achieved this, decades ahead of time.”
To complement the EHT findings, several NASA spacecraft were part of a large effort, coordinated by the EHT’s Multiwavelength Working Group, to observe the black hole using different wavelengths of light. As part of this effort, NASA’s Chandra X-ray Observatory, Nuclear Spectroscopic Telescope Array (NuSTAR) and Neil Gehrels SwiftObservatory space telescope missions, all attuned to different varieties of X-ray light, turned their gaze to the M87 black hole around the same time as the Event Horizon Telescope in April 2017. If EHT observed changes in the structure of the black hole’s environment, data from these missions and other telescopes could be used to help figure out what was going on. 
While NASA observations did not directly trace out the historic image, astronomers used data from NASA’s Chandra and NuSTAR satellites to measure the X-ray brightness of M87’s jet. Scientists used this information to compare their models of the jet and disk around the black hole with the EHT observations. Other insights may come as researchers continue to pore over these data. 
There are many remaining questions about black holes that the coordinated NASA observations may help answer. Mysteries linger about why particles get such a huge energy boost around black holes, forming dramatic jets that surge away from the poles of black holes at nearly the speed of light. When material falls into the black hole, where does the energy go? 
“X-rays help us connect what’s happening to the particles near the event horizon with what we can measure with our telescopes,” said Joey Neilsen, an astronomer at Villanova University in Pennsylvania, who led the Chandra and NuSTAR analysis on behalf of the EHT’s Multiwavelength Working Group.
NASA space telescopes have previously studied a jet extending more than 1,000 light-years away from the center of M87. The jet is made of particles traveling near the speed of light, shooting out at high energies from close to the event horizon. The EHT was designed in part to study the origin of this jet and others like it. A blob of matter in the jet called HST-1, discovered by Hubble astronomers in 1999, has undergone a mysterious cycle of brightening and dimming.
Chandra, NuSTAR and Swift, as well as NASA’s Neutron star Interior Composition Explorer (NICER) experiment on the International Space Station, also looked at the black hole at the center of our own Milky Way galaxy, called Sagittarius A*, in coordination with EHT.   
Getting so many different telescopes on the ground and in space to all look toward the same celestial object is a huge undertaking in and of itself, scientists emphasize. 
“Scheduling all of these coordinated observations was a really hard problem for both the EHT and the Chandra and NuSTAR mission planners,” Neilsen said. “They did really incredible work to get us the data that we have, and we’re exceedingly grateful.”
Neilsen and colleagues who were part of the coordinated observations will be working on dissecting the entire spectrum of light coming from the M87 black hole, all the way from low-energy radio waves to high-energy gamma rays. With so much data from EHT and other telescopes, scientists may have years of discoveries ahead. 
Original article:
http://nasa.gov/mission_pages/chandra/news/black-hole-image-makes-history
Time And Space
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lunarvesta · 3 years ago
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the rising signs
*this can also be affected by your sun + mercury + venus signs, or planets in your 1st house, or aspects to your ascendant*
aries: youthful aura. they seem to be focused on themselves, and they may come across as a little blunt. when they’re mad, you don’t want to cross their path.
taurus: they have a natural, ancient beauty to them. they look and walk like royalty. they’re very kind to people. they’re very patient, but they’re not scared to assert themselves.
gemini: very lively. they seem to be bouncing from one person to the next, and they’re very social. they have this fairy vibe to them, and their moods can change in a split second.
cancer: kind, they look like the classical vision of a mother: like mrs. potts from beauty & the beast. very sensitive to others emotions. they’re caring of everyone they love.
leo: kings & queens. they’re very fun to be around, and they’re not afraid to assert themselves. their hair may look like a mane. they love to be the center of attention, and to lead.
virgo: an innocent, shy aura. they’re very intelligent, and may be overly critical. they’re teacher’s pets. they probably love reading, and may be more rebellious then they seem.
libra: extremely social, they love to make new friends. they may come across as a bit dumb, and they’re unkowingly flirty. they seem to have “perfect” features.
scorpio: they seem like they hold a lot of secrets. they may have been neglected a lot as a child. they have a magnetic aura. they don’t share their emotions with many people, and it takes a while to gain their trust.
sagittarius: fun to be around, and blunt. they’re not to be trifled with, and they probably love reading. they’re very energetic, and may seem all over the place.
capricorn: serious most of the time. they have a nice bone structure, and as they grow older, they look younger. they’re hard workers, and will do anything for their family.
aquarius: friendly, and social. they love to be the center of attention, and to be a “special snowflake”. they have amazing bone structures. they give off this unique, quirky kind of vibe.
pisces: their personality changes depending on who they’re with. they’re kind, and adaptable. they have a lost sense of self. they’re shy and compassionate, and they’re sensitive to other people’s emotions.
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utwo · a year ago
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This is the 1939 Porsche Type64
... the first car wearing the Porsche name.
© iamted7
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nasa · 3 years ago
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5 Out-of-This World Technologies Developed for Our Webb Space Telescope
Our James Webb Space Telescope is the most ambitious and complex space science observatory ever built. It will study every phase in the history of our universe, ranging from the first luminous glows after the Big Bang, to the formation of solar systems capable of supporting life on planets like Earth, to the evolution of our own Solar System.
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In order to carry out such a daring mission, many innovative and powerful new technologies were developed specifically to enable Webb to achieve its primary mission.  
Here are 5 technologies that were developed to help Webb push the boundaries of space exploration and discovery:
1. Microshutters
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Microshutters are basically tiny windows with shutters that each measure 100 by 200 microns, or about the size of a bundle of only a few human hairs. 
The microshutter device will record the spectra of light from distant objects (spectroscopy is simply the science of measuring the intensity of light at different wavelengths. The graphical representations of these measurements are called spectra.)
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Other spectroscopic instruments have flown in space before but none have had the capability to enable high-resolution observation of up to 100 objects simultaneously, which means much more scientific investigating can get done in less time. 
Read more about how the microshutters work HERE.
2. The Backplane
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Webb's backplane is the large structure that holds and supports the big hexagonal mirrors of the telescope, you can think of it as the telescope’s “spine”. The backplane has an important job as it must carry not only the 6.5 m (over 21 foot) diameter primary mirror plus other telescope optics, but also the entire module of scientific instruments. It also needs to be essentially motionless while the mirrors move to see far into deep space. All told, the backplane carries more than 2400kg (2.5 tons) of hardware.
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This structure is also designed to provide unprecedented thermal stability performance at temperatures colder than -400°F (-240°C). At these temperatures, the backplane was engineered to be steady down to 32 nanometers, which is 1/10,000 the diameter of a human hair!
Read more about the backplane HERE.
3. The Mirrors
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One of the Webb Space Telescope's science goals is to look back through time to when galaxies were first forming. Webb will do this by observing galaxies that are very distant, at over 13 billion light years away from us. To see such far-off and faint objects, Webb needs a large mirror. 
Webb's scientists and engineers determined that a primary mirror 6.5 meters across is what was needed to measure the light from these distant galaxies. Building a mirror this large is challenging, even for use on the ground. Plus, a mirror this large has never been launched into space before! 
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If the Hubble Space Telescope's 2.4-meter mirror were scaled to be large enough for Webb, it would be too heavy to launch into orbit. The Webb team had to find new ways to build the mirror so that it would be light enough - only 1/10 of the mass of Hubble's mirror per unit area - yet very strong. 
Read more about how we designed and created Webb’s unique mirrors HERE.
4. Wavefront Sensing and Control
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Wavefront sensing and control is a technical term used to describe the subsystem that was required to sense and correct any errors in the telescope’s optics. This is especially necessary because all 18 segments have to work together as a single giant mirror.
The work performed on the telescope optics resulted in a NASA tech spinoff for diagnosing eye conditions and accurate mapping of the eye.  This spinoff supports research in cataracts, keratoconus (an eye condition that causes reduced vision), and eye movement – and improvements in the LASIK procedure.
Read more about the tech spinoff HERE. 
5. Sunshield and Sunshield Coating
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Webb’s primary science comes from infrared light, which is essentially heat energy. To detect the extremely faint heat signals of astronomical objects that are incredibly far away, the telescope itself has to be very cold and stable. This means we not only have to protect Webb from external sources of light and heat (like the Sun and the Earth), but we also have to make all the telescope elements very cold so they don't emit their own heat energy that could swamp the sensitive instruments. The temperature also must be kept constant so that materials aren't shrinking and expanding, which would throw off the precise alignment of the optics.
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Each of the five layers of the sunshield is incredibly thin. Despite the thin layers, they will keep the cold side of the telescope at around -400°F (-240°C), while the Sun-facing side will be 185°F (85°C). This means you could actually freeze nitrogen on the cold side (not just liquify it), and almost boil water on the hot side. The sunshield gives the telescope the equivalent protection of a sunscreen with SPF 1 million!
Read more about Webb’s incredible sunshield HERE. 
Learn more about the Webb Space Telescope and other complex technologies that have been created for the first time by visiting THIS page.
For the latest updates and news on the Webb Space Telescope, follow the mission on Twitter, Facebook and Instagram.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
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weirdlandtv · 2 years ago
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The first video game consoles, starting with the 1972 Magnavox Odyssey. Also shown are: the Odyssey’s follow-up; the Intellivision; the Fairchild Channel F; the Atari 2600 and 5200; and the ColecoVision.
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suaimhneas-gairid · a year ago
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y’all can’t give me a clip of Ryan playing with a whip and expect me not to gif
THE LOOK
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rtlstuff · 3 years ago
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After 2.5 hours of playing Doki Doki Literature Club!
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After 6 hours of playing Doki Doki Literature Club!
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