Filed under: Art, Astronomy, Bad Astronomy, Connections, movies, NPR, Phil Plait, Predictions, Science, Science Fiction, Singularity, Slate, Space, tech, Wired, YouTube | Tags: ALMA, art, astronomy, Bad Astronomy, blogging, Blood Sweat & Tears, Interstellar, jim downey, Kip Thorne, movies, music, NPR, Phil Plait, photography, predictions, reviews, science, Science Fiction, space, technology, video, www youtube
The reviews have been mixed, but one aspect of the new movie Interstellar is pretty cool: the rendering of the black hole depicted in the movie. Even moreso since it is as scientifically accurate as possible, based on close collaboration with noted astrophysicist Kip Thorne:
Still, no one knew exactly what a black hole would look like until they actually built one. Light, temporarily trapped around the black hole, produced an unexpectedly complex fingerprint pattern near the black hole’s shadow. And the glowing accretion disk appeared above the black hole, below the black hole, and in front of it. “I never expected that,” Thorne says. “Eugénie just did the simulations and said, ‘Hey, this is what I got.’ It was just amazing.”
In the end, Nolan got elegant images that advance the story. Thorne got a movie that teaches a mass audience some real, accurate science. But he also got something he didn’t expect: a scientific discovery. “This is our observational data,” he says of the movie’s visualizations. “That’s the way nature behaves. Period.” Thorne says he can get at least two published articles out of it.
The video is remarkable. Seriously. Go watch it.
And in a nice bit of serendipity, there’s another fantastic bit of astrophysics in the news just now: actual images of planetary genesis from ALMA. Check it out:
A new image from ALMA, the Atacama Large Millimeter/submillimeter Array, reveals extraordinarily fine detail that has never been seen before in the planet-forming disc around a young star. ALMA’s new high-resolution capabilities were achieved by spacing the antennas up to 15 kilometers apart [1]. This new result represents an enormous step forward in the understanding of how protoplanetary discs develop and how planets form.
ALMA has obtained its most detailed image yet showing the structure of the disc around HL Tau [2], a million-year-old Sun-like star located approximately 450 light-years from Earth in the constellation of Taurus. The image exceeds all expectations and reveals a series of concentric and bright rings, separated by gaps.
That’s not computer-rendered theory. That’s an actual image, showing the formation of planets around this very young star.
Wow.
Jim Downey
Filed under: Augmented Reality, Connections, Faith healing, Science Fiction, Survival, Wales, Writing stuff | Tags: augmented reality, blogging, Darnell Sidwell, excerpt, jim downey, miracles, Roman, Science Fiction, St. Cybi's Well, Wales, writing, Y Gaer
An excerpt I thought I would share. I had been planning on the current chapter being titled “Maen-Du Well”, but have decided instead on going with “Y Gaer”, which is just the Welsh name for “The Fort” — this fort, actually. The following happens there in the ruins:
A path led around past the buildings, then into a fair-sized rectangular terrace, the remnants of the Roman walls still clear and exposed in places. And the western and southern gate foundations were still surprisingly intact, from what he could see even at a distance of a hundred meters or so. He decided to cross the grounds of the old fort, go directly to the south gate.
As he approached the south boundary, he saw a man sitting on the gatehouse foundation, looking across the river. An old man, his aged leather rucksack on the wall ruins next to him. Eleazar didn’t look back, didn’t say anything as Darnell entered the small fenced-in area which protected the ruins from grazing sheep. He just looked out across the valley, until Darnell sat down beside him on the sun-warmed stone. “I thought I might find you here.”
Eleazar smiled. He pointed down the slope. “It was a good posting. The old road used to run just there, between us and the river.”
“You make it sound as though you were actually here,” said Darnell.
Eleazar shrugged. “For a while. It was good to get back to Britannia, and my passage was with a cavalry unit, part of which wound up here.”
Darnell studied the man. For a while, Eleazar just continued to look out over the small river valley. Then he turned, and considered Darnell in return. “You’re looking for miracles. Are you so surprised to see evidence of one?”
Jim Downey
Filed under: Connections, Faith healing, Humor, movies, Religion, Wales, Writing stuff, YouTube | Tags: blogging, faith healing, Ffynnon Gwyddfan, humor, jim downey, Monty Python, movies, religion, Science Fiction, St Teilo, St. Cybi's Well, video, Wales, writing, www youtube
Excerpt:
The priest spoke. “My friends, welcome. We’ll go inside the church and start services in a little bit. But I know many of you are not regular members. And while I would urge you to consider this moment to be the right time to become closer in fellowship with the Church, I think that what has happened transcends even the Church. God has spoken to us all, revealed His truth, to believer and non-believer alike.”
He reached into the box and carefully, respectfully, removed the goblet, and held it up. “So it is time to reveal something else which has long been hidden away: the cup of St Teilo, miraculously made from one of his skulls. The ancient legends say that drinking the water from Ffynnon Gwyddfan out of the cup will cure those who are stricken, and bless even the pagan.”
He moved off to the side, and down the slight hill, the crowd making way for him. He stepped up to the brick wall, and then reached down with the goblet to scoop up water from the well. Again he held it up for all to see. “Believer or not, all of us have been stricken with fear, unsettled in soul and mind by the darkness in this world. Drink of this cup, and let the water refresh you. Pass the cup from hand to hand, sharing the light of community. Be at peace, whatever comes.”
Jim Downey
*Sorry, couldn’t resist. Check the Wikipedia link about St Teilo above.
Filed under: Art, Connections, Humor, Music, National Geographic, Predictions, Science Fiction, Wales, Writing stuff | Tags: America the Beautiful, art, blogging, Elsie Kaplan, humor, jim downey, music, National Geographic, New Mexico, predictions, Science Fiction, Singing Road, St. Cybi's Well, Tijeras, video, Wales, writing
More than ten years ago I wrote the first version of what is now the opening page of St Cybi’s Well:
Darnell Sidwell had just crossed the Severn Bridge on the M4, heading west. He read the highway sign:
Sound Sculpture Ahead. Move to outer left lane, maintain speed of 70 kph.
He pulled the little GM rental hybrid into the left lane carefully, and thought about setting the cruise control, but was unsure where to find it on the unfamiliar vehicle. The car crossed the first warning rumble strips. Darnell turned his attention to the sound of the tires, and a few moments later was treated to a long, drawn-out rumble over a series of carefully spaced and specially shaped strips, which distinctly said: “WWWWW-ELLL-CCCCOOOOOMMME-TOOOOO-WWWWWAAAALLLESSSS”.
Playing with rumble strips is nothing new (and wasn’t when I first came up with the idea mentioned on my archive site above), but it’s fun to see that it is now being used more in the way I envisioned:
Sounds emanating from 1,300 feet of roadway just west of Tijeras have been listened to around the world, and it’s more than just tires on pavement catching international attention.
The Singing Road, installed last week, uses rumble strips to play “America the Beautiful” for drivers who obey the speed limit as they cruise down Route 66.
The National Geographic Channel approached the New Mexico Department of Transportation about the project last June, asking if they could construct the road for an upcoming series. The project was privately funded by National Geographic and NMDOT didn’t make – or spend – any money on it. Since the road was finished last week, Melissa Dosher, the public information officer for NMDOT, said she’s fielded questions from television stations as far away as Australia.
There’s a video (with sound) at the above site, so you can hear it. Fun stuff.
Jim Downey
HT to ML for the initial link last week.
Filed under: Arthur C. Clarke, Connections, Mars, movies, NASA, Paleo-Future, Predictions, Science, Science Fiction, Space, Survival, tech, YouTube | Tags: 2001, 2001: A Space Odyssey, blogging, Irene Klotz, jim downey, Mars, NASA, predictions, science, Science Fiction, space, technology, www youtube
NASA Eyes Crew Deep Sleep Option for Mars Mission
A NASA-backed study explores an innovative way to dramatically cut the cost of a human expedition to Mars — put the crew in stasis.
The deep sleep, called torpor, would reduce astronauts’ metabolic functions with existing medical procedures. Torpor also can occur naturally in cases of hypothermia.
* * *
Economically, the payoff looks impressive. Crews can live inside smaller ships with fewer amenities like galleys, exercise gear and of course water, food and clothing. One design includes a spinning habitat to provide a low-gravity environment to help offset bone and muscle loss.
Hmm … seems that I’ve heard of something like that before …
Jim Downey
*Obviously. Hat tip to ML for the link.
Filed under: Architecture, Augmented Reality, Wales, YouTube | Tags: augmented reality, blogging, CADW, Darnell Sidwell, jim downey, menhir, neolithic, Pentre Ifan, Science Fiction, St. Cybi's Well, video, Wales, www youtube
I’ve mentioned Pentre Ifan, a wonderful neolithic site (which is also the title of a chapter in St Cybi’s Well) before. It really is an amazing site, see for yourself:
And here’s the passage where Darnell sees it in SCW:
He continued on. Along a tumble-down wall separating fields, partially overgrown with hedge and briar. Past cattle in the field, grazing and occasionally lowing to one another, who took little interest in him as he walked along. Through another kissing gate, and almost suddenly he was standing there before the structure, bare to the sky. One great slab of stone several meters long and a couple wide, supported by three menhir, high enough that he would have to stretch a bit to touch the underside of the capstone. There were a couple of additional uprights at the south end, and several largish stones which had tumbled over. He just stood there for a moment, taking it all in.
Well, CADW has just released a new ‘digital restoration’ that’s very cool:
Neolithic Burial Chamber digitally restored
An ancient structure synonymous with the Pembrokeshire countryside has been recreated using the latest CGI technology.
Cadw, the Welsh Government’s historic environment service, has digitally restored the Pentre Ifan burial chamber in the latest of a series of videos available on its YouTube channel.
Fun to see that interpretation of it.
Jim Downey
Filed under: Connections, Emergency, Failure, Flu, Government, Health, NPR, Pandemic, Predictions, Preparedness, Science, Science Fiction, Survival, Travel | Tags: blogging, CDC, Ebola, flu, health, Homeland Security, influenza, jim downey, NPR, pandemic, predictions, science, Science Fiction, St. Cybi's Well, survival, The Atlantic, TSA, WHO, writing
… St Cybi’s Well, what with an incompetent theocratic government in place:
So imagine the scenario. A deadly flu pandemic is beginning in the northeast. TSA agents are asked to report for work in the germ incubators that are airports to keep the transportation system running. And while their bosses in Washington, D.C. can’t supply them with reliably functioning respirators to protect them from infection, they’re keeping thousands that may not work on hand, thinking they may hand them out for “employee comfort,” like security theater karma for those who make us remove our shoes and take our water.
But sadly, scarily, it isn’t. Rather, that passage is from the following news item:
The Department of Homeland Security Is Not Prepared for a Pandemic
As the Department of Homeland Security endeavors to prevent another 9/11, a terrorist attack that killed nearly 3,000 Americans, it is worth remembering that there are far deadlier threats out there. I speak not of ISIS or Ebola, but the influenza virus. The flu pandemic that began in 1918 killed 675,000 Americans. That is to say, it killed about as many Americans in a couple years as the AIDS virus has in decades. Worldwide, that same flu pandemic killed an estimated 30 to 50 million people. It would take 16,000 attacks like 9/11 to equal that death toll. Those figures powerfully illustrate the case for redirecting some of what the United States spends on counterterrorism to protecting ourselves from public health threats.
Of course, money only helps if it isn’t squandered. Take the extra $47 million dollars that Congress gave the Department of Homeland Security in 2006 to prepare for a pandemic. As a recent Inspector General report explains in depressing detail, a lot of that money was wasted. And one darkly hilarious passage in the audit reveals what may be the most galling example of security theater ever.
Oh, joy.
But it’s OK, because the rest of the world is ready to step up and fight against a viral threat which could explode into millions of cases in just a few weeks, right?
Um …
Dire Predictions On Ebola’s Spread From Top Health Organizations
Two of the world’s top health organizations released predictions Tuesday warning how bad the Ebola outbreak in West Africa could get.
Both the Centers for Disease Control and Prevention and the World Health Organization agree that the epidemic is speeding up. But the CDC’s worst-case scenario is a jaw-dropper: If interventions don’t start working soon, as many as 1.4 million people could be infected by Jan. 20, the agency reported in its Morbidity and Mortality Weekly Report.
*sigh*
Sometimes it feels less like I’m writing a cautionary work of fiction and more like I am looking back and writing an historical account …
Jim Downey
Filed under: Feedback, Science Fiction, Travel, Wales, Writing stuff | Tags: blogging, feedback, jim downey, Science Fiction, St. Cybi's Well, travel, Wales, writing
It’s a funny thing. I feel like I am making solid progress on St Cybi’s Well. It’s going slower than I would like (hell, I should have been done with the book over a year ago according to the original plan). And I have the usual minor blockages and set-backs that anyone trying to write something substantial is going to experience from time to time. I freely admit that getting another rejection from an agent was more of a blow than I expected. But in general I am happy with the way the writing is going, and excited to keep working on it.
Then something comes along which makes me realize just how much a small boost can be an encouragement.
Specifically, I got a note from one of my ‘beta readers’ yesterday, giving me some feedback on the book through Chapter 9 (I’m about to finish up Chapter 10. There will be 19 chapters total.). With permission, here’s an excerpt:
I decided to go back to the beginning, and have read all the way through the book. Wow. Obviously I’m a fan, but I love where you are going. The flow is really good – it feels as if the path Darnell is following would be one that the reader could easily take as well. And now I have to add Wales to my must see list!
I like the characters in the story. Each seems drawn from life – as if you could meet someone just like them if you found the right pub or site. Darnell’s character fascinates me. I want to know more about him, yet I don’t feel like I would *have* to know more. The bits of mystery surrounding him only enhance his appeal.
Encouragement, yeah. And a bit unexpected, since it had been a while since I sent out the last batch of chapters to my pool of ‘beta readers’, and have only heard back from a couple of them. I don’t like to bug people, and I don’t want to have them just send me positive feedback to get me to leave them alone. So having this unsolicited note show up was most welcome.
Onward. And hopefully, upward.
Jim Downey
Filed under: Astronomy, Fermi's Paradox, General Musings, Science, Science Fiction, SETI, Space, Survival | Tags: astronomy, blogging, Drake Equation, exoplanets, Fermi's Paradox, gamma ray bursts, Harvard, Hebrew University, jim downey, life, physics, Raul Jimenez, science, Science Fiction, SETI, space, survival, Tsvi Piran
It really does seem to be a pretty universal law:
On the role of GRBs on life extinction in the Universe
As a copious source of gamma-rays, a nearby Galactic Gamma-Ray Burst (GRB) can be a threat to life. Using recent determinations of the rate of GRBs, their luminosity function and properties of their host galaxies, we estimate the probability that a life-threatening (lethal) GRB would take place. Amongst the different kinds of GRBs, long ones are most dangerous. There is a very good chance (but no certainty) that at least one lethal GRB took place during the past 5 Gyr close enough to Earth as to significantly damage life. There is a 50% chance that such a lethal GRB took place during the last 500 Myr causing one of the major mass extinction events. Assuming that a similar level of radiation would be lethal to life on other exoplanets hosting life, we explore the potential effects of GRBs to life elsewhere in the Galaxy and the Universe.
What that means is summed up in this article. Here’s the conclusion:
Astronomers have long known that the Earth occupies a unique position in the solar system that allows life to flourish. This idea of a habitable zone now allows them to focus search for exoplanets that might also have conditions that are right for life. Now they can take this further by excluding inhospitable regions of the galaxy, and searching only those stars and galaxies that exist in the universe’s habitable zones.
Of course, that’s just for life as we know it …
Jim Downey
Filed under: Architecture, Artificial Intelligence, Augmented Reality, Brave New World, Connections, Expert systems, Mars, Predictions, Science, Science Fiction, tech | Tags: AIA, architecture, augmented reality, Blaine Brownell, blogging, Communion of Dreams, Harvard, jim downey, Mars, microbots, predictions, robotics, science, Science Fiction, swarm, technology, writing, Wyss Institute for Biologically Inspired Engineering
Another interesting item about developing the technology to create a useful swarm of small robots:
Harvard Researchers Create a Nature-Inspired Robotic Swarm
Some scientists believe that the way to solve the flocking enigma is to replicate it. Researchers at Harvard University’s Wyss Institute and School of Engineering and Applied Sciences (SEAS) recently developed a micro-scaled robotic technology that enables a controlled, flash mob–like assembly. In August, the team led by Harvard computer-science professors Radhika Nagpal and Fred Kavli demonstrated the ability of 1,000 robots to self-organize into user-selected shapes, such as a five-pointed starfish and the letter K.
* * *
“Increasingly, we’re going to see large numbers of robots working together, whether it’s hundreds of robots cooperating to achieve environmental cleanup or a quick disaster response, or millions of self-driving cars on our highways,” Nagpal said in the press release. “Understanding how to design ‘good’ systems at that scale will be critical.”
One provocative concept is the possibility of building and infrastructure construction that is carried out by thousands of self-organizing modules. Although many technical hurdles remain, this notion is especially intriguing in the case of hazardous and other challenging settings. In the near term, we will likely witness simple, one-story pavilions built from a collection of mobile robotic bricks to create emergency relief shelters following natural disasters.
Hmm … seems I’ve heard about that idea before someplace. Oh, yeah, from Communion of Dreams:
They were, in essence, enclosing the entire planet in a greenhouse of glass fabric and golden plasteel. It was going to take generations to finish, even using mass microbots and fabricating the construction materials from the Martian sands. Tens of thousands of the specially programmed microbots, a few centimeters long and a couple wide, would swarm an area, a carpet of shifting, building insects. As each cell was finished, it was sealed, joined to the adjacent cells, and then the microbots would move on.
But it is pretty cool to see the work being done to bring that about.
Jim Downey
Communion Of Dreams 