The Sunshield on NASA’s James Webb Space Telescope is the largest part of the observatory—five layers of thin membrane that must unfurl reliably in space to precise tolerances. Last week, for the first time, engineers stacked and unfurled a full-sized test unit of the Sunshield and it worked perfectly.
The Sunshield is about the length of a tennis court, and will be folded up like an umbrella around the Webb telescope’s mirrors and instruments during launch. Once it reaches its orbit, the Webb telescope will receive a command from Earth to unfold, and separate the Sunshield’s five layers into their precisely stacked arrangement with its kite-like shape.
The Sunshield test unit was stacked and expanded at a cleanroom in the Northrop Grumman facility in Redondo Beach, California.
The Sunshield separates the observatory into a warm sun-facing side and a cold side where the sunshine is blocked from interfering with the sensitive infrared instruments. The infrared instruments need to be kept very cold (under 50 K or -370 degrees F) to operate. The Sunshield protects these sensitive instruments with an effective sun protection factor or SPF of 1,000,000 (suntan lotion generally has an SPF of 8-50).
In addition to providing a cold environment, the Sunshield provides a thermally stable environment. This stability is essential to maintaining proper alignment of the primary mirror segments as the telescope changes its orientation to the sun.
The James Webb Space Telescope is the successor to NASA’s Hubble Space Telescope. It will be the most powerful space telescope ever built. Webb is an international project led by NASA with its partners, the European Space Agency and the Canadian Space Agency.
what happened in roughly 1870 though
why was there temporary internet
with a few people searching for pokemon?
It’s a search of Google books, but the question still stands, what the Fuck happened in 1870
I CAN ANSWER THIS!!
In the Cornish dialect of English, Pokemon meant ‘clumsy’ (pure coincidence).
In the mid 1800s there was a surge of writing about the Cornish language and dialect in an attempt to preserve them with glossaries and dictionaries being written. I wrote about it HERE.
Cornish game hen uses Clumsy. It was not very effective.
I just made one of the best (half assed tortilla) soups ever, and here’s how I did it:
I diced up and sautéed in olive oil: that half an onion that was just hanging out in my fridge, a jalapeño my neighbor gave me from her garden, a plum tomato, and one of those carrots that have been in the crisper for god knows how long. Added some salt and about 1/2 cup of veggie broth after a while and put a lid on it so they could cook and get soft.
After about 10 minutes, I added 2-3 cups veggie broth (I don’t measure), the leftover vegetarian refried beans from the other night (the bean mush made the broth not so watery), and I also threw in the rest of the leftover Spanish rice, what the hell. For spices and seasoning, I sprinkled in some Lowry’s salt, onion powder, garlic powder, cayenne pepper, cumin and chili powder. Again, I don’t know how much, I just sprinkled until it smelled good.
Then I put it in a bowl and snipped some cilantro from my garden and added a squirt of lime juice, then threw in some of the broken tortilla chips from the bottom of the bag that for some reason we kept instead of throwing away.
It’s SO GOOD, you guys. And it could be made with any kind of leftover or vegetable in your fridge that is about to go bad. Green pepper, zucchini, green beans maybe (?), corn, etc. Black beans. Avocado would be delicious on top. Toss in some sour cream or shredded cheese. SO EASY.
I’m basically going to eat some form of this soup for the rest of my life.
fancycwabs replied to your photoset:Look, I’m not saying I don’t have a problem, but I…Is Supernatural just The Dukes of Hazzard but with Satan instead of Boss Hogg?
Well…there’s a car? And brothers?
You are all on my list. You know who you are.
Beats all you never saw, been in trouble with the law since the day they was born….
Your digital camera is a subatomic particle detector. It detects photons.
I’m going to make everything around me beautiful - that will be my life.
Dinosaur-killing asteroid hit at just the wrong time
Animals might have survived if impact happened a few million years earlier or later.
Just before a large asteroid slammed into the Earth 66 million years ago, the diversity of plant-eating dinosaur species declined slightly, a new study suggests. That minor shift may have been enough to doom all dinosaurs when the space rock hit.
The scarcity of plant-eaters would have left them more vulnerable to starvation and population collapse after the impact, with consequences that rippled all the way up the food chain.
“The asteroid hit at a particularly bad time,” says Stephen Brusatte, a palaeontologist at the University of Edinburgh, UK. “If it had hit a few million years earlier or later, dinosaurs probably would have been much better equipped to survive.”
Brusatte and his colleagues describe this nuanced view of the famous extinction in Biological Reviews.
Read more @Nature.
Value your privacy? A groundbreaking anti-spying bill has been signed into law in New Hampshire!
New Hampshire Gov. Maggie Hassan has signed into law a bill that not only bans state and local law enforcement from searching an electronic device without a warrant, but also prohibits a small but important category of what the NSA has been doing with the warrantless data it collects.
The plain fact is that the planet does not need more successful people. But it does desperately need more peacemakers, healers, restorers, storytellers, and lovers of every kind. It needs people who live well in their places. It needs people of moral courage willing to join the fight to make the world habitable and humane. And these qualities have little to do with success as we have defined it.
- Panic attack
Currently at 1.5 ±0.1
Could be worse. I guess I’ll take it. I guess I’ll also take my beta blocker.