Dr. Riddle

468 posts

Dr. Riddle

Dr. Riddle

@drriddle

Astronomer, dad, patriot

انضم Temmuz 2008
76 يتبع31 المتابعون
Dr. Riddle
Dr. Riddle@drriddle·
@YokoKannoCH I got tickets and set up a weekend trip from Los Angeles last week to catch both shows. Totally worth it, everything was great! Hope to catch you again sometime soon.
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Dr. Riddle
Dr. Riddle@drriddle·
@chapchae The choir really ramped things up, especially in Call Me and Gotta knock a little harder. Great show.
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k 🔜 M1KU EXP0
k 🔜 M1KU EXP0@chapchae·
… standing up and singing and clapping along together (it felt like a religious experience lol). The hours felt like they went by in a blink. My one wish is that she’ll come back again soon and play more of her non-bebop music since I’d kill to hear her music from wolf’s rain,
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k 🔜 M1KU EXP0
k 🔜 M1KU EXP0@chapchae·
… were several bebop songs played again Saturday but felt completely different and more personal in the smaller venue. The songs also benefitted greatly from the addition of a choir who joined Steve in singing “knock a little harder”; by the end of that song everyone was…
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Dr. Riddle
Dr. Riddle@drriddle·
@crampell "After two years of fucking the WaPo over, my job is complete and I can move on." It really does feel like he was hired to ruin the paper, so much has gone wrong since he came in. I cut my subscription when you left, it was clear what was coming, so no surprise here.
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Dr. Riddle
Dr. Riddle@drriddle·
@DJSnM If they turned right to come back instead of left they would have had a better alignment for the runway. Or, if they turned more north after the right turn. Either saves the extra turn to land opposite of takeoff run. Hard call to make in the moment though.
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Scott Manley
Scott Manley@DJSnM·
Another way of viewing the data is this time/energy graph, the left 3 graphs show potential energy at the bottom, kinetic energy in the middle and the sum of those two at the top. By climbing and descending you can convert speed into altitude and vice versa, but if the total energy increases that shows there's thrust being generated. There's definitely some odd behaviour early on where the expected climb is aborted, and then a couple of minutes later they climb a couple of thousand feet before making this turn back. while performing a controlled descent. For the last minute or so the total energy level is pretty flat meaning they had thrust, as they made that long turn towards the runway. If I were to guess the low pass across the field may have been to get below clouds and keep the field in sight.
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Scott Manley
Scott Manley@DJSnM·
Recreated the flight of N257BW which crashed as it returned to KSVH minutes after takeoff, it looks like it had performance issues and then ran out of energy on final approach to landing. Sad to hear this was Greg Biffle and his family.
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Dr. Riddle
Dr. Riddle@drriddle·
@airlinevideos There was some smoke from the landing gear as they slowed, it's possible they damaged a tire with that hard stop. Good idea to go back to the gate and check everything over. I was on a plane that stopped like that, it's pretty scary to have sudden braking on takeoff.
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AIRLINE VIDEOS
AIRLINE VIDEOS@airlinevideos·
🚨 “German Cargo 619, stop!” LAX ATC shouted as an AeroLogic 777 crossed runway 25R, 1.3 miles down the runway from an American Airlines flight to Boston. The jet slammed on the brakes at 167 mph — all captured live on the 24/7 Airline Videos cameras.
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Dr. Riddle
Dr. Riddle@drriddle·
@Janet_sm145 The problem is her ignorance covers the fact that Kirk was wrong. Solar flares are not warming the Earth, neither is any change in the tilt of the rotation axis (which isn't happening). Humans producing greenhouse gasses is the cause, full stop.
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Janet™
Janet™@Janet_sm145·
To what degree?
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Virginie Sigonney 🇫🇷
Virginie Sigonney 🇫🇷@GinieSigonney·
Smooth B777 landing seen from an helicopter 💙 Do you recognize the airport ? #AirFrance . . 🎥©️ Emi Aviation
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Dr. Riddle
Dr. Riddle@drriddle·
@zach_harig Some planes have turned around. I bet others either expect to get there before the tsunami hits with enough time to evacuate, or else were too far along to turn around. They will have reserve fuel and can circle until a runway is ready for them on some island.
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Dr. Riddle
Dr. Riddle@drriddle·
@Turbinetraveler We had a medical emergency on a flight headed into SLC. Over the Great Salt Lake, we did a spiraling descent and then came in under the rest of the traffic. It was rapid but well controlled and smooth. Definitely intense. Had a wind shear at landing in Tucson, that was scarier.
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Turbine Traveller
Turbine Traveller@Turbinetraveler·
Have you ever experienced such a high rate of descent? If something is meant to happen, it will happen—Murphy's Law.
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Dr. Riddle
Dr. Riddle@drriddle·
@straczynski Hopefully this goes better, as the Mutara nebula was vaporized at the end.
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Dr. Riddle
Dr. Riddle@drriddle·
@aviationbrk @Glanzyspudding @FrankWCE1992 People have been running this on flight simulators, and the 787 flies away even if the flaps are up for the whole takeoff. Flaps coming up does not explain the electrical issues, and it's very unlikely a pilot would make this mistake.
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Breaking Aviation News & Videos
Enhanced video of the moment AI171 crashed appears on social media and gives a clearer indication that the aircraft's Ram Air Turbine was deployed shortly after take off from Ahmedabad. The new video is sharper and with better audio than the one widely circulated on the day of the accident. The RAT can clearly be heard at the beginning of the 18 second clip. Aviation experts say the deployment of the ram air turbine (RAT) on the Air India Dreamliner that crashed on June 12 is compelling evidence of a catastrophic dual engine failure. The ram air turbine (RAT) is a last-resort device designed to deploy automatically on aircraft like the Boeing 787 Dreamliner when both engines fail or there is a total loss of electrical or hydraulic power. “It’s not designed for an airplane at 400 or 500 feet to lose all power,” he says. “But it gives you the minimum needed to fly and communicate.”
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Dr. Riddle
Dr. Riddle@drriddle·
@DJSnM The rotor was spinning fast on impact, didn't look unbalanced, likely explains the bent mast and blade damage. Physically ripped off when the tumble started. Something seized and caused the rapid yaw, tore the boom off, and that was it. Maintenance issue most likely.
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Scott Manley
Scott Manley@DJSnM·
Damn. Looks like it’s still attached to a section of fuselage.
Scott Manley tweet media
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Dr. Riddle
Dr. Riddle@drriddle·
@PKBirkmeyer @JuliusRuechel It is happening now, but so slowly that it has zero effect on the warming of the Earth. And I mean zero, the change over 100 years is negligible for something that will happen over 600 million (the time until the Sun's heating causes life to end).
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PK Birkmeyer
PK Birkmeyer@PKBirkmeyer·
@JuliusRuechel So, what is causing this so-called 'global warming'? Has anyone looked at the Sun? Supposedly, in the future, the Sun will expand to be a Red Giant, engulfing Earth. Who is to say it isn't happening SLOWLY now?
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Julius Ruechel
Julius Ruechel@JuliusRuechel·
Your periodic reminder that a cow cannot add a single atom of carbon to the atmosphere that wasn't previously removed from the atmosphere by a plant. So, cows cannot increase atmospheric CO2, they merely recycle CO2. It's not a new source of carbon. And without cows, bacteria would, over time, rot plant fibers and return the exact same amount of carbon to the atmosphere. But grazing cows help grass sod fix carbon in the soil, thus increasing soil fertility over time. The climate crusade is built on scientific fraud. And many of the proposed solutions, like reducing cows, are directly causing much of the soil degradation and forest fires (because of ungrazed fuel in the forests), which activists and dishonest scientists then blame on "climate change".
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Dr. Riddle
Dr. Riddle@drriddle·
@TheKevinDalton That's a mobile home park that burned down, so not a lot of wealthy people, possibly uninsured. And that area was hit by a landslide before, they need to wait on that. Stuff is happening, a friend in Altadena already had their site cleared. It's going to take time to clean up.
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Kevin Dalton
Kevin Dalton@TheKevinDalton·
Why does it look like there is zero recovery effort happening on PCH?
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Dr. Riddle
Dr. Riddle@drriddle·
@Truthful_ast The camera also moved, the image has shifted towards the top compared to before the event, it's pointing more towards the skirt than before. Obviously a major malfunction...the engine must have exploded and blown free, then vented the fuel, causing the spin.
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Truthful🛰️
Truthful🛰️@Truthful_ast·
Starship engine bay camera showing a missing vacuum Raptor engine
Truthful🛰️ tweet media
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Dr. Riddle
Dr. Riddle@drriddle·
@RodDMartin This is a lie, it confuses total military spending with NATO support. In reality, the US covers about 16% of NATO spending. Why do people keep lying about these things? The facts are easily found.
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Rod D. Martin
Rod D. Martin@RodDMartin·
Just to be clear, the Europeans aren’t gonna do jack.
Rod D. Martin tweet media
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Dr. Riddle
Dr. Riddle@drriddle·
@Rob_ThaBuilder Arguing that disagreeing with one bit of science means you doubt all science is disingenuous. Climate change is real and caused by humans, other science is irrelevant to that. There are people with XY and female features, people with XXX, XXY, and do on. It's not binary.
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The Heretical Liberal 🇨🇦
The Heretical Liberal 🇨🇦@Rob_ThaBuilder·
For fu¢ks sakes do these idiots seriously not see the dangers of destroying their own credibility like this? Do they not see the downstream effects of this kind of dishonest sophistry? As a lib, I'm still desperately trying to cling to the idea that climate change is real and a serious problem, but how do I ACTUALLY know? I'm not a climate scientist, and so I rely on expert scientists to inform me. But when I ALSO see the same ppl telling me that there are more than two sexes - something I KNOW is a blatant lie - how can they expect us to believe them? And I actually DO believe that anthropogenic climate change is a real and serious problem, and so if I'M starting to have these serious doubts, imagine how many millions of ppl who were in the fence are not just saying "nah, it's all bullshit, look at these ridiculous clowns, they'll say anything that confirms to left wing narratives"? If climate change denial becomes the dominant force in this space over the next few years, media outlets like @washingtonpost will be the ones that are responsible.
The Heretical Liberal 🇨🇦 tweet media
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Dr. Riddle
Dr. Riddle@drriddle·
@DanHawkins @miami_rick I'm not a pilot, but I read about flying a lot and both of these points are pretty clear. Landing looks normal, then it seems like there's a bobble or drop with a slight roll to the right just before touchdown. Shear or reaction to a gust seems likely.
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@miami_rick 🇺🇸✈️
@miami_rick 🇺🇸✈️@miami_rick·
I’m always quiet at first when an accident occurs because not enough data is available to make an informed assessment. After watching this short video it’s abundantly evident to me that the flying pilot did not properly flare the jet prior to touchdown causing the the right main landing gear to contact the runway with enough vertical velocity and horizontal shearing load (due to the crosswind at the time) to collapse it and the remaining horizontal momentum was enough to flip the aircraft over, shear the right wing off and cause the aircraft to end up inverted at the end of the crash sequence. It is a miracle that no one was killed. Now the question is why and how did this happen.
Planesanity@planesanity

Shocking footage of the Delta crash yesterday!

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Dr. Riddle
Dr. Riddle@drriddle·
@pcavlin ADS-B has a normal descent rate. In big crosswinds, you do drive it to landing. To me, it looks like there was a drop/roll right before touchdown, maybe a gust of wind or shear. It could also be a gear failure caused the immediate collapse. FDR will tell us if it was normal.
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Pat Cavlin
Pat Cavlin@pcavlin·
Well, that would do it. The pilot didn’t flare the aircraft before touchdown meaning the plane slammed into the ground while dropping at a rate so fast the main gear collapsed. The right wing breaks off and the plane rolls, skidding to a stop. Lot of questions here…
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Dr. Riddle
Dr. Riddle@drriddle·
@floor_not @DJSnM Flaps and slats appear to be down, the CRJ has short flaps. Look at the video from the cockpit, you can see the slats hanging down in front. Landing really appears to be normal until the last second, a slight drop/roll maybe, and then the gear collapses.
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SeaAnemone
SeaAnemone@floor_not·
@DJSnM My understanding is the plane wasn’t configured for landing at all with no flaps extended?
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Scott Manley
Scott Manley@DJSnM·
It's wild that TMZ is the place that is bringing the answers to what happened with Delta 4819. Lands more or less level with right wheel touching down first. Right gear collapses, wing hits ground and snaps off, then we get the rollover. We're amazingly lucky that this wasn't worse. ADS-B shows normal sink rates of ~500fpm, but measuring frames here makes it look more like 2000fpm.
Scott Manley tweet mediaScott Manley tweet mediaScott Manley tweet mediaScott Manley tweet media
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