We will probably find out more this weekend when Musk is scheduled to give a more detailed briefing on the Super Heavy/Starship progress.To an extent, Starship’s reentry profile is actually quite similar to NASA’s now-retired Space Shuttle, which took approximately 30 minutes to go from its reentry burn to touchdown. Per the above infographic, it looks like Starship will take approximately 20 minutes from orbit to touchdown, owing to a dramatically different approach once it reaches slower speeds. Originally described by Musk in September 2018 and again in recent weeks, Starship will essentially stall itself until its forward velocity is nearly zero, after which the giant spacecraft will fall belly-down towards the Earth, using its wings and fins to maneuver like a skydiver. The Space Shuttle landed on a runway like a (cement-encased) glider.This unusual approach allows SpaceX to sidestep the need for huge wings, preventing Starship from wasting far more mass on aerodynamic surfaces it will rarely need. The Space Shuttle is famous for its massive, tile-covered delta wing and the leading-edge shielding that partially contributed to the Columbia disaster. However, it’s a little-known fact that the wing’s size and shape were almost entirely attributable to US Air Force demands for cross-range performance, meaning that the military wanted Shuttles to be able to travel 1000+ miles during reentry and flight. This dramatically constrained the Shuttle’s design and was never once used for its intended purpose.
The Relix article does not mention what may be Hunter's most beautiful lyric, to the song, Ripple. I cannot imagine a more fittingFor the Dead, Garcia and Hunter teamed up for many of the band’s most popular compositions, like “Uncle John’s Band,” “Touch of Grey,” “Casey Jones,” “Friend of the Devil, “Truckin’,” “Franklin’s Tower,” “Eyes of the World,” “Sugaree” and “Scarlet Begonias,” among many others. Hunter also worked with Bob Dylan on multiple songs from the late-’80s onward and more recently has collaborated with songwriters like Bruce Hornsby, Steve Kimock, Jim Lauderdale and David Nelson.Hunter received the Americana Music Association’s Lifetime Achievement Award in 2013, followed by an induction into the Songwriter’s Hall of Fame (with Garcia) in 2015.
If my words did glow with the gold of sunshine
And my tunes were played on the harp unstrung,
Would you hear my voice come through the music?
Would you hold it near as it were your own?
It's a hand-me-down, the thoughts are broken,
Perhaps they're better left unsung.
I don't know, don't really care
Let there be songs to fill the air.
Ripple in still water,
When there is no pebble tossed,
Nor wind to blow.
By shifting much of the actual number work onto techno-tools, Wolfe said, financial firms have widened the gap between decision-makers and the real-world impacts their work achieves.Regarding his colleagues who worked on The Big Short, Wolfe commented, “They really make clear that people at the top of financial institutions did not fully understand how instruments designed and used by people under them worked. They made billion-dollar bets without understanding what they were doing. They knew the upsides, but not the downsides.”Incidentally, the so-called “junk bond king” may have argued something similar, Deringer said; in a nutshell, Milken hinted at technological determinism, a concept that lives on at big firms today.“Apparently at one point he said that, actually, if you wanted to identify who were the real culprits for the new, freewheeling, sort of morally boundary-crossing forms of finance that developed in the ‘80s, the people to really look at were the inventors of VisiCalc,” Deringer said.
What bothers me more is the disregard for real science and physics. I will go to see the movie anyway, but I hate having to turn off the intellectual part of my mind when I sit down in the theatre. Why has it been 50 years and nobody has beaten 2001 at getting it right?As an astrophysicist and a film critic, I’ve been waiting my whole life for a big-budget adventure film that spans the whole solar system. There are some stunning sequences in Ad Astra, and many of the details about astronaut life and space travel are spot-on. But some of the themes and ideas that drive the plot are based on astronomical misconceptions.Ad Astra touts itself as having help from NASA, so presumably someone somewhere gave them some advice. Still, there are plenty of ways science advising can go wrong— miscommunication, script conflicts, misconceptions, and outright mistakes. In Ad Astra, those mistakes range from wrong ideas about space travel to inaccuracies about basic astronomy.
Obviously this has to be done with the permission of the performer so you won''t find it available at every concert. Currently, you can try it out on Elton John's farewell tour.In my testing, the power of Peex became immediately apparent once the first lines of “Bennie and the Jets” hit. With my earbuds out, the audio sounded just as I thought it would (even in the sparkling new Chase Center in San Francisco): A mushy wall of noise reverberating in my skull, lyrics comprehensible only because I already knew what they were. But when I popped in my Peex earbuds, the experience was immediately transformed. Even before I started fiddling with the equalizer settings, I found all the instruments were tighter and scrubbed of echo, and, critically, Sir Elton’s voice rang out above them all, accompanied by his crisp strikes of piano keys.Once you start fiddling with the equalizer settings it’s hard to stop. By “Tiny Dancer,” I had found the experience benefitted even further by pumping up vocals a few notches along with keyboards, while leaving the other instruments dialed back. As John has a whopping three percussionists on stage, comprising half the band, I quickly realized this powerful trio could be safely leveled down a touch.
- Physicists Finally Nail the Proton’s Size, and Hope Dies. The headline is hyperbolic but there's some seriously fundamental physics here.
- Here’s what happened in the impact crater the day it did in the dinos. Geologists got a core sample from the centre of the crater.
- How to spot a bot. A handy infographic to help you identify bots in your Twitter feed.
- The Big Business of Scavenging in Postindustrial America. There's big money in all that junk.
- Digital Hearing Aids Turn the Whole World Into a Giant MP3 File. If you need hearing aids, you probably can't hear the difference between an MP3 and full range audio anyway.
- AI for ophthalmology: Doing what doctors can’t. I must show this to my ophthalmologist the next time I see her.
- When You Electronically Sign Documents, Always Keep a Copy. If you're a freelancer, you should read this.
The mass turns out to be no more than 1.1 electron volts. Compare that to an electron, which has a mass of about 500,000 eV.An experiment nearly two decades in the making has finally unveiled its measurements of the mass of the universe’s most abundant matter particle: the neutrino.The neutrino could be the weirdest subatomic particle; though abundant, it requires some of the most sensitive detectors to observe. Scientists have been working for decades to figure out whether neutrinos have mass and if so, what that mass is. The Karlsruhe Tritium Neutrino (KATRIN) experiment in Germany has now revealed its first result constraining the maximum limit of that mass. The work has implications for our understanding of the entire cosmos, since these particles formed shortly after the Big Bang and helped shape the way structure formed in the early universe.
While this is technically feasible, I question whether it makes economic sense. But it would be a heck of a trip, if a long one (at 1,600 km./hr. it would take almost 10 days).The researchers’ main result is to show that today’s strongest materials—carbon polymers like Zylon—could comfortably support a cable stretching from the moon to geosynchronous orbit. They go on to suggest that a proof-of-principle device made from a cable about the thickness of a pencil lead could be dangled from the moon at a cost measured in billions of dollars.That’s clearly ambitious but by no means excessive for modern space missions. “By extending a line, anchored on the moon, to deep within Earth’s gravity well, we can construct a stable, traversable cable allowing free movement from the vicinity of Earth to the Moon’s surface,” say Penoyre and Sandford.The savings would be huge. “It would reduce the fuel needed to reach the surface of the moon to a third of the current value,” they say.
Making these changes will mean that any events your email provider previously added to your calendar automatically by scanning your inbox for certain types of messages from common events — such as making hotel, dining, plane or train reservations, or paying recurring bills — may no longer be added for you. Spammy calendar invitations may still show up via email; in the event they do, make sure to mark the missives as spam.
It's quite brilliant featuring excellent characterization and world building coupled with a page turning plot. I am fairly certain that it will be a top contender for next year's Hugo and Nebula awards.Several years after a period of civil unrest and digital blackouts in the United States, a truth and reconciliation process has led to a major restructuring of the federal government, major tech companies, and the criminal justice system.In this still-rebuilding America, freelance journalist Aoife Tkachenko is just trying to make a living (and a name for herself outside of the shadow of her famously-martyred older brother) when she stumbles onto a document from the commission’s archives that many powerful people would rather keep buried. As she digs deeper into the story (all the while dispatching her findings to her newsletter subscribers), Aoife realizes that what she’s found could upend America’s tenuously held peace–and get her killed in the process.
The spreadsheet software Microsoft Excel, when used with default settings, is known to convert gene names to dates and floating-point numbers. A programmatic scan of leading genomics journals reveals that approximately one-fifth of papers with supplementary Excel gene lists contain erroneous gene name conversions.The problem of Excel software (Microsoft Corp., Redmond, WA, USA) inadvertently converting gene symbols to dates and floating-point numbers was originally described in 2004 [1]. For example, gene symbols such as SEPT2 (Septin 2) and MARCH1 [Membrane-Associated Ring Finger (C3HC4) 1, E3 Ubiquitin Protein Ligase] are converted by default to ‘2-Sep’ and ‘1-Mar’, respectively. Furthermore, RIKEN identifiers were described to be automatically converted to floating point numbers (i.e. from accession ‘2310009E13’ to ‘2.31E+13’). Since that report, we have uncovered further instances where gene symbols were converted to dates in supplementary data of recently published papers (e.g. ‘SEPT2’ converted to ‘2006/09/02’). This suggests that gene name errors continue to be a problem in supplementary files accompanying articles. Inadvertent gene symbol conversion is problematic because these supplementary files are an important resource in the genomics community that are frequently reused. Our aim here is to raise awareness of the problem.
