Alexander the ok
Alexander the ok
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[REUPLOAD: IMPROVED AUDIO] Oceangate Titan: analysis of an insultingly predictable failure
Original video with improvements to the audio. It still sounds terrible due to the cheap mic....but since there are some pretty major lessons to take away, I'd rather people can hear me.
I never intended to touch this subject again - I've moved onto more interesting topics. But since the original video has been getting attention lately, this is the least I could do.
Sources used:
Original video:
ua-cam.com/video/VaOVYkWgpcM/v-deo.html
2022 documentary showing previous dive
www.bbc.co.uk/programmes/m001d2ml
Dave Lochridge court case against Oceangate
media.wbur.org/wp/2023/06/answer-to-complaint.pdf
James Cameron's choice words about the incident:
ua-cam.com/video/rThZLhNF_xg/v-deo.html
Alvin DSV abridged operating procedures. The entire WHOI site for Alvin was used for research:
www.whoi.edu/marine/PDF/ATL%2007.9%20ALVIN%20Operations.pdf
SUBSAFE: The US Navy's comprehensive safety program for submarine's. Originated from a broadly similar accident (USS Thresher) in the 1960's):
history.nasa.gov/columbia/Troxell/Columbia%20Web%20Site/Documents/Congress/House/OCTOBE~1/Sullivan%20opening%20statement.pdf
An informed summary from someone with far far more experience than me:
ua-cam.com/video/4dka29FSZac/v-deo.html
A Review on Structural Failure of Composite Pressure Hulls in Deep Sea
www.mdpi.com/2077-1312/10/10/1456
Chapters:
00:00 new 2024 Intro
01:10 Original intro
03:52 Communicating Risk
06:48 'The Hull Is Solid'
12:58 'Not Safety Critical'
19:33 Other Factors
Переглядів: 81 123

Відео

The Space Shuttle: A $200 Billion Lesson in Risk Management
Переглядів 174 тис.Місяць тому
Over its lifetime the shuttle carried out a more diverse range of missions than any other launch system in existence. It also resulted in the most studied disaster in history. With the rise of private spaceflight, it has become 'fashionable' to look back on the Shuttle only for its shortcomings. It is too easy to forget how far ahead of its time the Shuttle was when it first launched, and what ...
Minuteman D-17b: The Desktop Computer Was Born in an ICBM
Переглядів 113 тис.2 місяці тому
In the early 1960s when computers were typically the size of a car, the USAF took on the seemingly impossible task of cramming one into a missile. That missile was the Minuteman was an entirely new concept: a small solid fuelled rocket able to independently steer itself to the target. The resulting D-17b computer was so small for the time, I argue it may have been the first desktop computer. Th...
The Best Performing (and most dangerous) Chemical Rocket Ever Tested: Rocketdyne Tripropellant
Переглядів 767 тис.4 місяці тому
A deep dive into a legendary rocket engine test that took all the best elements of Kerbal Space Program, Portal and Doom. The Rocketdyne tripropellant engine, tested for NASA in the late 1960's may very well be the most dangerous chemical engine ever tested. Patreon: www.patreon.com/alexandertheok 3D animation by Artem Tatarchenko: artem.iskustvo Intro sequence inspired by: ua-ca...
The World's First Microprocessor: F-14 Central Air Data Computer
Переглядів 731 тис.5 місяців тому
The history of the first microprocessor is murky and ill-defined. For years, the Intel 4004 was generally accepted to hold the title. However, in 1998, the historical record was rewritten as the existence of an earlier system was revealed to the world. In this video, we'll learn about the MP944, and why many now consider it the first microprocessor. Regardless of whether it was or not, it was e...
Elite: "The game that couldn't be written"
Переглядів 1,2 млн6 місяців тому
Elite may be the most complex 8-bit game ever produced. And it was arguably the most groundbreaking game ever released for its time. Back in the early 1980s when arcade-shooters reigned supreme, two undergraduates at Cambridge redefined what computer games even were. In this video we'll look at some of the technical aspects of how David Braben and Ian Bell were able to construct an entire unive...
Black Arrow. And why Britain doesn't have a space program
Переглядів 106 тис.8 місяців тому
Britain technically has a 'space program'. But it's one that can't launch anything, barely employs anyone and has a miniscule annual budget. This has not always been the case. This video is a technical deep dive into an unusual launch system that had a tragically short life: Black Arrow. 50 years later, we look back and imagine what could have been, had the UK government not cancelled the progr...
Digital Fly-By-Wire: The Apollo Guidance Computer's final gift to the world
Переглядів 208 тис.9 місяців тому
To get Apollo to the moon and back required a step change in computing, the result of which was the Apollo Guidance Computer: a device more than a decade ahead of its time. However, following the success of the Apollo program, the computer was re-purposed to allow NASA to essentially invent the digital fly-by-wire. This is considered to be one of the most successful flight test programs of all ...
Virgin Galactic: The Myth of Informed Consent for Space Tourism
Переглядів 200 тис.10 місяців тому
With Virgin Galactic recently commencing paid flights to space, there has been much media attention on their 'innovative' launch system. Bar repeated discussions on a crash during a test flight 9 years ago, little discussion seems to be available on the safety of their system as it is today. Much of the details are obscured through company secrecy and government regulations. This is ironic as l...
DSV Alvin : How to build a safe submersible
Переглядів 230 тис.11 місяців тому
Regularly diving 4km below the surface of the ocean is no easy task. However, for the past 6 decades, the Woods Hole Oceanographic Institution have made 5000 such dives safely using the world's most famous Deep Submergence Vehicle: Alvin. Unsurprisingly, the design and operating considerations for such a craft are extensive to say the least. This presentation walks through the main aspects to c...
Oceangate Titan: analysis of an insultingly predictable failure
Переглядів 2,8 млнРік тому
REUPLOAD WITH IMPROVED AUDIO HERE: ua-cam.com/video/4eNm8vnKZ38/v-deo.html A preview of a world where 'regulation does not stifle innovation'. I wanted to clear up some points that have been widely misreported whilst discussing how mechanical failures of subsea vessels have been avoided for decades until now. This video could have been hours long if I spoke about everything in length, so consid...
Soviet Neon Plasma Matrix Part 2: towards a full graphical display.
Переглядів 9 тис.Рік тому
Honestly, this is probably best viewed on mobile due to the low resolution of the display. It's impossible to film properly. An update on the project to convert a Soviet Ukrainian MC6205 (aka MS6205) neon plasma matrix display to show full raster graphics. This operated with the same principle as a nixie tube, as explained in part 1. It was originally designed to display text only and I have ye...
The Numitron: The attractive but underachieving little brother of the Nixie tube.
Переглядів 8 тис.Рік тому
More Soviet-era display antics with Numitron tubes. Filmed while I wait for the next revision of my driver board for the neon plasma display. Numitrons were invented in the late 1960's by RCA in the USA. They didn't see a huge amount of use as they were quickly superceded by LEDs. However, they were manufactured en-masse in the Soviet Union and new, unused tubes are still available today in Ukr...
Doing extremely Soviet things with a vintage neon plasma matrix display - MC6205 part 1
Переглядів 7 тис.2 роки тому
Have you ever noticed those monochromatic orange screens in 1960s-80s sci fi? Or have you seen orange computer displays from 1980s hardware? Those are neon gas discharge displays; an early form of plasma screen display, derived from Nixie tubes. The Elektronika MC6205 (sometimes called MS6205) is a Soviet designed neon gas discharge display. It was used in a variety of consumer and military app...
100% warcrimes speedrun: Russia's technology problems
Переглядів 54 тис.2 роки тому
100% warcrimes speedrun: Russia's technology problems
Soviet IV-18 VFD clock, driven by a tuning fork
Переглядів 2,3 тис.2 роки тому
Soviet IV-18 VFD clock, driven by a tuning fork
Soviet Era Nixie Tubes: how they work and how I built a clock from them
Переглядів 4,8 тис.3 роки тому
Soviet Era Nixie Tubes: how they work and how I built a clock from them
Orbital debris simulation
Переглядів 2,1 тис.8 років тому
Orbital debris simulation
vector graphics on oscilloscope screen
Переглядів 5 тис.8 років тому
vector graphics on oscilloscope screen

КОМЕНТАРІ

  • @HerbertTowers
    @HerbertTowers Годину тому

    "Dot products are easy". WTF! Not in my mind during my aero/astro BSc studies!!!

  • @dorsetdumpling5387
    @dorsetdumpling5387 3 години тому

    I was there. Loved it.

  • @Name-ot3xw
    @Name-ot3xw 4 години тому

    The missile knows where it is at all times. It knows this because it knows where it isn't. By subtracting where it is from where it isn't, or where it isn't from where it is (whichever is greater), it obtains a difference, or deviation. The guidance subsystem uses deviations to generate corrective commands to drive the missile from a position where it is to a position where it isn't.

  • @Name-ot3xw
    @Name-ot3xw 5 годин тому

    TBH, I can't imagine a scenario where I, person in charge of making sure blue team doesn't blow up, decide to switch from blue to red team in the event that a red team contractor tells me that the blue team is probably gonna blow up. Bad manners in video games, probably a dick move IRL. I think this largely falls under what Aviation might call "get there-itis" today.

  • @Name-ot3xw
    @Name-ot3xw 5 годин тому

    RIP Buran, you picked literally the worst time to be born. There's at least a couple of urbex videos of the interior and of the decaying hangar it was in.

  • @quattordicimontenapoleone3113
    @quattordicimontenapoleone3113 6 годин тому

    "That is it" - That's pretty much all a computer does.

  • @kanchanmishra4790
    @kanchanmishra4790 7 годин тому

    In your previous video you talked about how the minute man missile could stop the solid rocket upper stage. Why couldn't they use the same pressure system in the shuttle?

    • @Alexander-the-ok
      @Alexander-the-ok 6 годин тому

      Excellent question! I cut a section from the script on exactly that. The minuteman 3rd stage was about the same size as a small person (about 165cm high). The Shuttle SRBs were about 50m long - they were HUGE. The ‘pressure drop’ method doesn’t scale up so wouldnt be able to extinguish such a large reaction front.

  • @shivamvaid601
    @shivamvaid601 7 годин тому

    You just proved that the US are spying on us.

  • @Add_Infinitum
    @Add_Infinitum 10 годин тому

    1:52 Reading off the Portal 2 terms of service

  • @QuantumHistorian
    @QuantumHistorian 11 годин тому

    Interesting to note that the hydrogen is mainly there as inert reaction mass rather than for any chemical reaction. This is worth comparing with hydrolox engines, which typically run with hydrogen heavy (a ratio of about 5:1 compared to the 2:1 for the stoichiometric ratio) for much the same reason. Not that you could run a hydrolox engine stoichiometrically without melting anyway. As such, we could say that hydrolox engines are also tripropelent: hydrogen is the fuel, oxygen the oxidiser, and extra hydrogen the reaction mass - it just so happens that the same stuff is used for two different roles.

  • @bodan1196
    @bodan1196 12 годин тому

    The Saab 37 Viggen flew with a "central air computer", the CK37 (with integrated circuits) onboard in 1967. The F-14 flew in 1970. Unfortunately I have not found any info on the circuits used in the CK37. So I don't know what processor it used.

  • @elephant1992
    @elephant1992 13 годин тому

    It did said that he got most of the parts at your local hardware store on my

  • @Rexini_Kobalt
    @Rexini_Kobalt 16 годин тому

    hmmmm why does this all remind me of fallout: new vegas for some reason 😂😂 or perhaps it should be the other way around also, shooting barrels of hazardous waste until they ignite or explode? oh my god who came up with that one 🤣 sometimes, reality truely is wilder than fiction. its a goddamn wild wasteland out there

  • @smedleyx
    @smedleyx 17 годин тому

    Superb presentation. I think any non-engineer can sense how robust Alvin's systems are. I'm sure scientists don't have a bottomless budget but it seems like their attitude is: design properly first, and then decide if they can afford it ... Even though I'd feel totally safe in Alvin, I'm not a researcher, so I would never go as a passenger because tourism destroys everything.

  • @kevinroark5024
    @kevinroark5024 18 годин тому

    How did the make the manual pump that passes through the Titans hull that releases the massive frame safe for 12,5 00ft deep are 13,000ft ??Are was it like the widow&super glue&5inches of old carbon fibre'????

  • @Dong_Harvey
    @Dong_Harvey 20 годин тому

    "What is the actual collapse pressure of a typical ping-pong ball?" "Well, it depends, is it an African or European ping-pong ball?" "What?... I don't know!... Waaaaaghh!"

  • @sorcererstone3303
    @sorcererstone3303 22 години тому

    I wonder what the size of the computer inside Apollo was in the late 1960s?

    • @Alexander-the-ok
      @Alexander-the-ok 15 годин тому

      I have a video about it. 70lbs. It was an impressive feat for the time.

  • @thornunia5057
    @thornunia5057 День тому

    Awesome information for a non-Rocket Engineer, in fact a non-engineer of anything. But I Do Have a creative mind and love science of all sorts. Amazing video and explanation. Go Rocketdyne!

  • @Simoxs7
    @Simoxs7 День тому

    Now I wonder what technologies are installed in… lets say the F35 that‘ll not come close to consumer markets in the next 20 years.

  • @AlexGrey-py1tr
    @AlexGrey-py1tr День тому

    Thanks for the video, honestly it's hard to evalue a major US symbol in $. 200B seems cheap theses days. Kids around the world were mermized, like a sr71 or B2.

  • @8bvg300
    @8bvg300 День тому

    Let’s not forget that every cloud has a silver lining. Thatcher worked on the creation of Soft Serve Ice Cream…

  • @f14tomcat37
    @f14tomcat37 День тому

    12:50 I think the computer could track 24 targets simultaneously (or possibly only 18 - I am not sure). You mention 6. I believe that the number 6 refers to the number of Phoenix missiles that the F14 Tomcat could carry. So the computer would track 24 targets simultaneously, and rank the top 6 in real time. If the pilot fired one Phoenix, that Phoenix missile would be aimed by the computer to the highest priority of the 24 targets. If the target - say - were downed, the game would start again with the computer continuing to track up to 24 targets, but with only 5 Phoenix missiles left. Clearly if the pilot were to fire all the 6 Phoenix missiles in rapid succession, they would all go to the top 6 targets. I hope this makes sense.

  • @toddgraham8653
    @toddgraham8653 День тому

    It definitely would have been something of a rough day for old man rush. I have always wondered what it would have been like in the submersible, minutes before the ole girl imploded. Just thinking of seeing the roof leaking as his guests watched the titanic float by our that porthole listening to some tunes . I’ve always imagined rush thinking how he could fix that drip from the roof .

  • @11x334
    @11x334 День тому

    I think you're gonna have space flight when your internal mechanism generates its own energy and your flight method is simple.

  • @konycurrentyear7053
    @konycurrentyear7053 День тому

    Design-by-committee death trap. To think what could've been achieved if they hadn't tried to make the Shuttle do everything.

  • @gae_wead_dad_6914
    @gae_wead_dad_6914 День тому

    Honestly these make look Nuclear Thermal Salt water Rockets that run on Neutron Flux as a fun safe experiment for children. Or maybe it doesn't, because while getting to Mars is 3 days is cool - having a flying equivalent of chernobyl is not

  • @michaeloconnor7849
    @michaeloconnor7849 День тому

    "Everday" thankfully not. "Astronaut", fortunately not.

  • @Spiritt_Daphiti
    @Spiritt_Daphiti День тому

    beter late , then never . Thanks for that video mate , now i understand why people looking and wonder over me . I mean , so far 9 years iam in UK( iam from Bulgaria , 40 years old ) and i didnt knowed that even UK was about to have ''' space program '' . And i was asking and looking for Rocket Enginering / Rockets Propulsions Systems /avionics etc. etc to start or try to find somewhere to study similiar , but when i asked even doctors/lectures/teachers .....they wasnt able to answer me at all ! Yet i do started bussines studys , and when i just spelled the word > Rocket Propulsion > Gunpowder Rockets ( just a hobby ones ) answer from them it is so pathetic .....when i cant even have my hobby ( rocket modeling/rocketry / ) to make my fuel and just test my little toys .......It is Not Safe in UK to make your own Rocketry/Pyrothehnic/Explosive Sciences .........but aye , in UK there are Billions of Millions Pounds Bussineses also alot yang people but .... Rocket Tehnology and Science it is missing or forbinden :( anyway ..Skip it '' . Cheers mate !

  • @waaaaantube
    @waaaaantube 2 дні тому

    Talk about Alvin!

  • @user-kd4ic5ih4n
    @user-kd4ic5ih4n 2 дні тому

    Re: beryllium in gyros. It has very high stiffness to weight ratio, better than steels, aluminums or titaniums. I think tungsten is stiffer but is hilariously dense.

  • @NoMoreBsPlease
    @NoMoreBsPlease 2 дні тому

    4:23 I THINK BP and the entire Gulf of Mexico MIGHT disagree with you! That POS was so poorly designed, I'm shocked it every passed testing.

    • @Alexander-the-ok
      @Alexander-the-ok 2 дні тому

      Well...I know the exact point you stopped watching.

  • @NoMoreBsPlease
    @NoMoreBsPlease 2 дні тому

    0:11 If you can't understand why he's doing it, just look at the comments on ANY video about it! 99.99999% think he's INSANE and it's another Oceangate. I seriously have to question your research if you seriously think he's only trying to prove a point to Billionaires! We're talking about people who actually think James Cameron is a Submersible EXPERT and not a obscenely rich person who PAID experts to build his submersibles or contracted Russia's Naval Research Institute for his trips to Titanic! They are seriously acting like Triton is just an Oceangate copycat and not one of the Submersible companies urging Oceangate to do testing and Certification!

  • @Neon9th
    @Neon9th 2 дні тому

    38:15 Bro, you made like 10 people mad.

  • @delliardo583
    @delliardo583 2 дні тому

    Here, I'll do the side by side comparison. Alvin is a machine designed to do a task and do it well and safely. Oceangate is a billionaire's toy that got people killed. It's apples to oranges sure, but some people need to understand an apple is not an orange and vise versa.

  • @xxxfreshman
    @xxxfreshman 2 дні тому

    My Gen 8 65" Samsung is still to Dark, mostly by HDR Movies, but have a Satelite Reciver were i cant turn off the HDR function 😞

  • @xxxfreshman
    @xxxfreshman 2 дні тому

    As a European "German" Please come back, we need u 2, to renew the ESA, to make dreams possible, i don't think that any of our national Space Agencies have enough power, to get against the USA, China, Japan or India, we are more powerful together.

  • @oooodaxteroooo
    @oooodaxteroooo 2 дні тому

    Using a game controller is crazy. They all fail during their lifetime and aren't necessarily built robustly in the first place. As a hobby electrician fiddling with these years back, I've seen so many fails possible and so rubbish quality in some, I'd NEVER recommend using them. Thr older they get, the bigger the margin of input noise. In cheap controllers it can be unexpectedly big. That means erraneous movement in random directions without any way to counter. Just crazy.

  • @oooodaxteroooo
    @oooodaxteroooo 2 дні тому

    Just to be sure, the 2nd curve charted besically means that that material when exposed to stress x would deform to one point the first time and way beyond the second time? The steel curve then shows that could never go below a certain safety deformation. That can't be true, can it?

  • @petertimowreef9085
    @petertimowreef9085 2 дні тому

    I preferred not knowing your supposed "credentials" to be honest. You don't end up in the oil and gas industry unless you're a greedy selfish gremlin. When I was a kid we used to ice-skate in winter. Now we don't have real winters anymore. Do you realise how utterly messed up that is? And now you're using that blood money to try and sound intelligent on the internet, what a fucking waste.

  •  2 дні тому

    Spoiler alert HF and burning lithium. Oh my! 🧪🔥

  •  2 дні тому

    Nuclear engineers are pretty damn engineery. Applied physicists also crossover quite engineery and machinistery too.

  • @csonracsonra9962
    @csonracsonra9962 2 дні тому

    I can get one of those much cheaper 1:27

  • @csonracsonra9962
    @csonracsonra9962 2 дні тому

    I'm afraid you're wrong because the average house in California cost a million dollars you can't get no f****** Mansion for that

  • @DarkRavenhaft
    @DarkRavenhaft 2 дні тому

    dtsc.ca.gov/santa_susana_field_lab/ssflcancerstudyexposureassessment/ Safely disposed of my ass

  • @dx-ek4vr
    @dx-ek4vr 2 дні тому

    The Space Shuttle definitely had its advantages, and it did kinda look cool. I think the biggest flaw was that it was just around for way too long, and as such, gained a reputation as being a burden on NASA (whether the reputation was fair or unfair is up to you I suppose). In a more ideal world, the Space Shuttle was something that was to be used into the medium term when something better could replace it, perhaps something akin to Lockheed Martin's VentureStar. But alas, that never happened, and so the Shuttle got retired without a replacement for almost a decade

  • @Chaos_insurgents
    @Chaos_insurgents 3 дні тому

    "whoaaaaaaaaa" -GLaDOS i hear portal music :0

  • @petertimowreef9085
    @petertimowreef9085 3 дні тому

    14:22 "Let's just go with Wikipedia". Exactly. Wikipedia is the only unequivocally good thing the internet has brought us. Please donate.

  • @user-mt4hn4dq5m
    @user-mt4hn4dq5m 3 дні тому

    Lithium, florine and Hydrogen. What the FUCK

  • @garytwinem5275
    @garytwinem5275 3 дні тому

    Beautiful restoration of a piece of computing history.

  • @jonathanmabardy
    @jonathanmabardy 3 дні тому

    “Why would anyone want to chase a marginal performance gain at the expense of gaining a full house if chemical hazard bingo” F1 teams: