Valentin Shevtsov
Valentin Shevtsov
  • Видео 35
  • Просмотров 182 402
How Apollo 11 Landed on the Moon
In this video, I talk in detail about the Apollo 11 journey from Earth to the Moon. I talk about how the mission went, and how the lunar module landed on the Moon (and returned back to Earth).
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Timestamps:
0:00 - Intro
0:21 - Journey to the Moon
2:37 - Lunar landing
4:46 - Return to Earth
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• Follow me on X (Twitter): x.com/valshevtsov
• Join this channel to get access to perks: ruclips.net/channel/UCpaVq536yWhX_nugERWLFYgjoin
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Thumbnail image attribution:
NASA, Public domain, via Wikimedia Commons, commons.wikimedia.org/wiki/File:Apollo_11_CSM_photographed_from_Lunar_Module_(AS11-37-5445).jpg
NASA / Neil A. Armstrong, Public domain, via Wikimedia Commons, commons.wikimedia.org/wiki/File:Aldri...
Просмотров: 658

Видео

How Submarines Go Up and Down
Просмотров 204Месяц назад
In this video I explain how submarines submerge and surface. In particular, I explain how the ballast and trim tanks work. • Follow me on X (Twitter): x.com/valshevtsov • Join this channel to get access to perks: ruclips.net/channel/UCpaVq536yWhX_nugERWLFYgjoin Thumbnail image attribution: U.S. Navy photo by Mass Communication Specialist 1st Class John Parker, Public domain, via Wikimedia Commo...
How the ISS Gets Oxygen
Просмотров 2,7 тыс.Месяц назад
In this video I explain how the ISS (the International Space Station) gets oxygen. Specifically, I talk about oxygen generators, pressurized oxygen tanks, and oxygen candles (aka chlorate candles). Timestamps: 0:00 - Oxygen generators 01:42 - Pressurized oxygen tanks 01:57 - Oxygen candles • Follow me on X (Twitter): x.com/valshevtsov • Join this channel to get access to perks: ruclips.net/chan...
This Sphere Protects Taipei 101 From Earthquakes
Просмотров 352Месяц назад
This giant 660-ton steel sphere, located at the top of Taipei 101, is what protects it from typhoons and earthquakes. In this video, I explain how this sphere (tuned mass damper) works and also talk about other ways of protecting skyscrapers from seismic forces. Timestamps: 0:00 - Intro 0:37 - Taipei 101 tuned mass damper 03:35 - Base isolation 04:21 - Outro • Follow me on X (Twitter): x.com/va...
How Airport Runways Are Designed
Просмотров 3792 месяца назад
While it may look simple, runway design is actually a lot more complicated than you think. In this video, I'll explain what those numbers on runways mean and how runway orientation and length are chosen. Timestamps: 0:00 - Runway orientation 01:51 - Numbers on runways 03:16 - Runway length 04:10 - Outro • Follow me on X (Twitter): x.com/valshevtsov • Join this channel to get access to perks: ru...
How Submarines Communicate Underwater
Просмотров 1,5 тыс.3 месяца назад
In this video, I talk about how submarines communicate underwater. Specifically, I talk about how deep radio waves can penetrate salt water, how exactly submarines receive radio waves, and I also talk about the (formerly) top-secret "Project ELF" (aka "Project Sanguine"), which in a nutshell is an antenna that can send radio waves that can penetrate very deep into the ocean. Timestamps: 0:00 - ...
Why Boeing Starliner Failed
Просмотров 2303 месяца назад
In this video, I talk about what happened to the Boeing Starliner. Specifically, I talk about the problems the engineers encountered and explain what the next steps are for the astronauts (Butch Wilmore and Suni Williams) and the Starliner. Timestamps: 0:00 - Intro 0:20 - What happened? 01:45 - What's next? 03:12 - Outro • Follow me on X (Twitter): x.com/valshevtsov • Join this channel to get a...
The Entire History of Trains
Просмотров 1054 месяца назад
In this video I talk about the entire history of trains. I talk about the earliest trains and railroad networks. I also explain how we went from horse-drawn wagons to steam powered trains to diesel and electric ones. If you like railroads, this video is for you. Timestamps: 0:00 - Intro 0:15 - Pre-steam 02:01 - Steam locomotives 02:36 - Electric locomotives 03:21 - Diesel locomotives 03:32 - Hi...
The Entire History of Aviation
Просмотров 2814 месяца назад
In this video, I talk about the entire history of airplanes. I talk about the history of kites, hot air balloons, airships and planes. Like, literally the entire history of aviation. If you like aviation, this video is for you. Timestamps: 0:00 - Intro 0:40 - Kites 01:49 - Hot air balloons 04:13 - Airships 05:30 - Airplanes • Follow me on X (Twitter): x.com/valshevtsov • Join this channel to ge...
The Entire History of Cars
Просмотров 8445 месяцев назад
In this video I talk about the entire history of cars. I talk about when the first steam, electric and gas powered cars were invented. I also talk about the evolution of automobiles and the different eras. Watch this video if you want to learn more about the automotive history. Timestamps: 0:00 - 17th century (the first steam-powered vehicle in history) 0:30 - 18th century (the first steam-powe...
How E-Ink Works
Просмотров 1,5 тыс.6 месяцев назад
In this video I explain how e-ink displays work in e-readers. I explain why e-ink displays have such a low refresh rate. I also explain why e-readers have such good battery life. And I talk about where else e-ink displays can be used besides e-readers. Timestamps: 0:00 - Intro 0:40 - How e-ink displays work 1:24 - Why e-ink displays have such a low refresh rate 1:33 - What temperatures e-ink di...
How Starship Works
Просмотров 2,2 тыс.7 месяцев назад
In this video I explain how the Spacex Starship works. I explain how the Super Heavy booster and the Starship spacecraft land. I also explain why Starship is made of stainless steel. And, I explain what makes Starship reusable. Timestamps: 0:00 - Intro 00:36 - How Super Heavy booster works 03:00 - How Starship works 06:19 - Outro • Follow me on X (Twitter): x.com/valshevtsov • Join this channel...
How Falcon 9 Works
Просмотров 1,2 тыс.8 месяцев назад
In this video, I explain how reusable rockets work, specifically SpaceX's Falcon 9. I talk about grid fins, cold gas propulsion, and other things. I also talk about why Elon Musk decided to make reusable rockets. Timestamps: 0:00 - Why it's important to make reusable rockets 1:50 - How the Falcon 9 rocket works 2:38 - What makes the Falcon 9 reusable (how it lands) 4:44 - How much money reusabl...
How Japan's Bullet Trains Work (Shinkansen)
Просмотров 2,8 тыс.8 месяцев назад
How Japan's Bullet Trains Work (Shinkansen)
How to Make a Bridge Earthquake-Proof?
Просмотров 67710 месяцев назад
How to Make a Bridge Earthquake-Proof?
How Landing Gear Works
Просмотров 2,3 тыс.10 месяцев назад
How Landing Gear Works
How Winter Tires Work
Просмотров 43511 месяцев назад
How Winter Tires Work
How Antarctic Stations Withstand Extreme Cold
Просмотров 2,6 тыс.11 месяцев назад
How Antarctic Stations Withstand Extreme Cold
How Radioisotope Thermoelectric Generators Work
Просмотров 1,2 тыс.Год назад
How Radioisotope Thermoelectric Generators Work
How Satellites Don’t Collide in Space
Просмотров 1,6 тыс.Год назад
How Satellites Don’t Collide in Space
How Tunnels Are Made
Просмотров 10 тыс.Год назад
How Tunnels Are Made
Why Is This $20,000,000,000 Airport Sinking?
Просмотров 16 тыс.Год назад
Why Is This $20,000,000,000 Airport Sinking?
We Can Deflect Lightning With Powerful Lasers
Просмотров 1,5 тыс.Год назад
We Can Deflect Lightning With Powerful Lasers
How Airspeed Is Measured
Просмотров 1,3 тыс.Год назад
How Airspeed Is Measured
How Safe Are Skyscrapers During a Fire?
Просмотров 1,2 тыс.Год назад
How Safe Are Skyscrapers During a Fire?
How Highways Are Designed
Просмотров 4,8 тыс.Год назад
How Highways Are Designed
In Defense of American Cardboard Houses
Просмотров 5 тыс.Год назад
In Defense of American Cardboard Houses
Bizarre Jet Snow Blower. How Does It Work?
Просмотров 14 тыс.2 года назад
Bizarre Jet Snow Blower. How Does It Work?
How the Japanese Clear a Path Through 20 Meters of Snow
Просмотров 21 тыс.2 года назад
How the Japanese Clear a Path Through 20 Meters of Snow
How Railroad Switches Don’t Freeze in Winter
Просмотров 5 тыс.2 года назад
How Railroad Switches Don’t Freeze in Winter

Комментарии

  • @mmicoski
    @mmicoski 8 дней назад

    I complained about going on a road trip to my mother's city, which is ~600km away. Imagine what these guys had to endure.

  • @mmicoski
    @mmicoski 8 дней назад

    Imagine a place humankind had seen since its dawn. Lately, the Greeks managed to measure the distance to the Moon, and boy, it was incredibly far. More recently, it was discovered it was not only far but also deadly. You basically had to take everything a human being needs to keep alive, including breathable air. And then, finally, someone was going there, to this far, deadly place. Absolutely amazing to navigate gravity based on theory, walk on a place that had not received any living creature since its creation, and having to plan everything, as there was no room for a rescue mission.

    • @ValentinShevtsov
      @ValentinShevtsov 8 дней назад

      I believe that the moon landing was the most significant moment in human history. Perhaps only the colonization of Mars can surpass it.

  • @ClackerJack
    @ClackerJack 17 дней назад

    Why not just build a tunnel?

  • @Darubini01TV
    @Darubini01TV 23 дня назад

    Looks like Crater lake in Oregon,US in May.

  • @thomasvilhar3560
    @thomasvilhar3560 28 дней назад

    Hahaha

  • @allenelswick6961
    @allenelswick6961 Месяц назад

    First off in the USA we get a lot of freezing that would freeze that water fast. It must not get that cold in Japan because if it did the water would freeze on the roadway and then you have icy very slick roads.

  • @ripleyleuzarder630
    @ripleyleuzarder630 Месяц назад

    maybe in russia but All new Subs in the usa since the 60's have Positive Boyancy in otherwords if they stop moving they will surface(from safety depth limits) and the only way it can submerge is to move it forward and use the Elevator's in the rear to raise the rear till the nose drops. The picture shown in the title is a Emergency Ballast Blow to rise as fast as possible.

  • @aarondavis1284
    @aarondavis1284 Месяц назад

    its amazing that we are about to witness and be part of the first humans to ever set foot on another world

  • @MDrepairsLLC
    @MDrepairsLLC Месяц назад

    Awesome video

  • @xtradi
    @xtradi Месяц назад

    Where is oxygen from algae?

    • @ValentinShevtsov
      @ValentinShevtsov Месяц назад

      Yes, there are algae bioreactors on the ISS that can turn CO2 into oxygen. But they are still not fully commissioned/operational, it's just an experiment for now. That's why I decided not to talk about it in the video

  • @3ne2nr4life
    @3ne2nr4life Месяц назад

    He sounds like a James Bond Villian.. Awesomeness!!!

  • @aaaronhernandez70
    @aaaronhernandez70 Месяц назад

    It is horrible for privacy men, i remember when i was able to cry all i wanted when i felt sad or laugh as loud as i wanted when hanging out with my friends back in my country, USA houses sucks in that sense, imagine not being able to be yourself in your own house.

  • @railgap
    @railgap Месяц назад

    I'll bet they're good at moving ballast around too!

  • @EonSound
    @EonSound Месяц назад

    Thanks. The thought randomly came into my head of why there aren't more tragic fires in NYC. And this video answers it.

  • @Fummy007
    @Fummy007 Месяц назад

    1:41 it is almost a closed loop but they still vent methane to space, losing CH4. so more H2O is always needed, and carbon in the form of food.

  • @Ionee-q4f
    @Ionee-q4f Месяц назад

    i really love the oxygen candles they also can use to get an extra boost of oxygen if there are a lot of people on station. That system did cause the fire on mir but i believe the investigation concluded some foreign object, a ripped piece of latex glove or something like that, was what caused the fire, so the system is still in use on iss. It's really interesting not only that they can burn something to make oxygen, but that its such a good system they decided to bring it into space. Similar solid fuel oxygen generators are used in airliners, on submarines, i think even firefighters use them in some cases

  • @Whyisthisugh
    @Whyisthisugh Месяц назад

    I very well enjoyed this video, especially your amazing accent! I wish you success.

  • @kennydude7971
    @kennydude7971 Месяц назад

    People will believe anything

  • @apollonius7227
    @apollonius7227 Месяц назад

    Gained a fan from South Africa 💯

  • @ahmedalsadik
    @ahmedalsadik Месяц назад

    But electrolysis is very expensive in terms of energy, they can fuel it with just solar panels?

    • @TheEletricboy
      @TheEletricboy Месяц назад

      ISS Solar Panels are insanely efficient compared to even industrial ones here on earth and there's also the vacuum of space to consider. No atmosphere and therefore wayyyy more solar potential energy to harness. All of these things combined add up much higher energy yields than at sea level on earth. Also this isn't the only system, oxygen scrubbers and whatever else they use means that the Electrolysis O2 Generators don't actually have to produce that much oxygen, they simply compliment it (so even less power draw). This same principle of reusability is seen everywhere in the station and when analysed as a whole you'd be surprised how efficient it is at maintaining life systems. A huge chunk of power consumption I'm assuming also comes from the science instruments and experiments, everything is quite nicely thought out :D

  • @jamese9283
    @jamese9283 Месяц назад

    Concise and interesting. BTW, your English is excellent, but your heavy accent is killing me.

    • @ValentinShevtsov
      @ValentinShevtsov Месяц назад

      @@jamese9283 Thanks, mate! I’m glad you found this video interesting. As for the accent, yeah… I’m working on it.

    • @Poepopdestoep
      @Poepopdestoep Месяц назад

      Dude, come on. You go learn another language and do it without any noticeable accent.

  • @Darktide_YT
    @Darktide_YT Месяц назад

    Bro i always wondered this

  • @stevensims3342
    @stevensims3342 Месяц назад

    Oortkwaves

  • @NikoKourouklis
    @NikoKourouklis 2 месяца назад

    Amazing how the low quality shorts trying to convey the same information used the same footage. Therefore, your video is superior.

  • @foobarf8766
    @foobarf8766 2 месяца назад

    Great video! One important thing to add, the runway number is called the QFU and it is a magnetic (not true) bearing. Sometimes they are renumbered as deviation changes over time. Except for Antarctica, because the mag south pole is at higher latitude than any runway down there. A runway number there will be like 36T -- the T is for true heading.

    • @ValentinShevtsov
      @ValentinShevtsov 2 месяца назад

      Oh, wow. I didn't know about Antarctica. Thanks for this interesting info!

  • @ConversionCenters
    @ConversionCenters 2 месяца назад

    Well done....keep it up!

  • @redflexzz5351
    @redflexzz5351 3 месяца назад

    this cure my curiosity ty 😂

  • @TheMcLune
    @TheMcLune 4 месяца назад

    Boeing engineers need to get their act together. They had the problem prior to launch but it escalated once in space. Not a good look for Boeing at all

    • @ValentinShevtsov
      @ValentinShevtsov 4 месяца назад

      Absolutely. It's very sad to see the demise of such a once great company

  • @varenyashashikararya
    @varenyashashikararya 4 месяца назад

    Awesome Video👍

  • @Tonsvtunes
    @Tonsvtunes 5 месяцев назад

    Great explanations and examples! What was the process for combining different elements back then? Double exposing the film itself or reshooting the combined elements? And / or other techniques?

    • @ValentinShevtsov
      @ValentinShevtsov 5 месяцев назад

      Thanks! Yes, double exposure was the most common technique.

  • @matthewharmon1688
    @matthewharmon1688 5 месяцев назад

    The artillery vehicle camera pan right was brilliant😂 The juxtaposition of that small frame with an enormous boiler just made my day better

    • @ValentinShevtsov
      @ValentinShevtsov 5 месяцев назад

      Haha, thanks! No wonder that vehicle was unstable 😂

  • @Cryonic7740
    @Cryonic7740 6 месяцев назад

    Great video. Thanks for sharing

  • @MysteryMan00
    @MysteryMan00 6 месяцев назад

    Hi there, been binging your vids for past an hour and it's been a blast, please don't stop on your youtube, it'll surely grow, i really have high hopes in you! P.S you remind me of lemmino

    • @ValentinShevtsov
      @ValentinShevtsov 6 месяцев назад

      Thank you for your support! It means a lot to me. And yes, I definitely won't stop. In fact, there will be a new video tomorrow. It's going to be pretty interesting!

  • @ubertalldude
    @ubertalldude 6 месяцев назад

    Great video

  • @kaleb8082
    @kaleb8082 6 месяцев назад

    You have consistently been putting out interesting and high quality videos! Looking forward to the next one. And please don’t focus too much on the comments regarding your accent. Your English is nearly perfect and your accent is completely understandable.

    • @ValentinShevtsov
      @ValentinShevtsov 6 месяцев назад

      Thank you for your kind words! I really appreciate your support. By the way, there will be a new video tomorrow and it'll be quite interesting!

  • @robdax3122
    @robdax3122 6 месяцев назад

    Everything beautiful, except the fact that: - the price are still very high IMO - the wood rots and carries even dangerous mold - if you move to another house after 10 years, the price of your house (which I remember was high) will be much lower because of the durability

    • @rws91942
      @rws91942 20 дней назад

      @@robdax3122 that durability concern depends on where you're at in the United States. I live in the Pacific Northwest and there is no way I would feel comfortable living in a brick building here. We definitely get earthquakes.

  • @hazimahmadi6701
    @hazimahmadi6701 6 месяцев назад

    Thanks for sharing

  • @josemaria1035
    @josemaria1035 6 месяцев назад

    How can the Pigments be made so that it can still work below -10c°?

    • @ValentinShevtsov
      @ValentinShevtsov 6 месяцев назад

      The problem at low temperatures is not with the pigment particles, but with other components of e-readers. The battery stops working properly, losing power quickly, the plastic becomes brittle like glass, and the oil inside the capsules becomes too viscous to allow the particles to move. So, to allow e-readers to work at extremely low temperatures, we need to fix all of the things I mentioned. But even if we fix the e-ink displays, the battery still won't work properly. Smartphones (and other devices with batteries) don't work at extremely low or high temperatures either, for the same reason. The problem is the battery.

  • @walker1054
    @walker1054 6 месяцев назад

    Some bus stops now use eink displays for the departure board. If it refreshes once every 30 seconds during the day(60 seconds at night) then they'll still take like 12 years before they hit the 10,000,000 refreshes that the displays are rated for. I assume they're more reliable than LCDs/dot matrix displays too since they're doing nothing most of the time but this is a guess. Definitely use a tiny fraction of the power though which would let them be powered by a small solar panel and small battery(to stay on overnight) whereas with the other types of displays you'd have to run a grid power connection to the bus stop. Would still need a little control board and 3g though to give the display it's data, but still much cheaper than connecting the bus stop to the grid since those can be solar too.

    • @ValentinShevtsov
      @ValentinShevtsov 6 месяцев назад

      This is a great example of where e-ink displays should be used. I don't see the point in putting them in computer screens or smartphones. That's not the best place for them. But timetables are a great place for e-ink displays. You're right, they're reliable, they save energy, and are just as good as LCD/dot-matrix displays in terms of readability.

  • @phil2782
    @phil2782 6 месяцев назад

    Just found your channel, big fan so far. Keep making videos, you'll be the next big engineering channel!

  • @STEVEBEERMAN
    @STEVEBEERMAN 7 месяцев назад

    Mega > Milli

    • @ValentinShevtsov
      @ValentinShevtsov 7 месяцев назад

      Thanks for the correction. I meant meganewtons, not millinewtons.

  • @malnaai6467
    @malnaai6467 7 месяцев назад

    lol. its... so cool... when elon actually delivers ill agree. 4 now, its still science fiction.

    • @ValentinShevtsov
      @ValentinShevtsov 7 месяцев назад

      Don't be so pessimistic. Will it get to Mars? Someday, maybe. Not in this decade, though. But it'll definitely deliver cargo to orbit pretty soon. It's not science fiction because there have already been several test flights. This thing flies. At the current rate of development it'll start delivering cargo to orbit within a few years.

    • @malnaai6467
      @malnaai6467 7 месяцев назад

      @@ValentinShevtsov im not being pessimistic. its called being realistic- i said "when" / "4 now". I have hope also but fact- elon has not delivered to date what he promised and took money for. Elon is a smart guy. but im not gona be blinded by the obvious.

  • @lubab997
    @lubab997 7 месяцев назад

    This video is good information ❤ thanks you brother

  • @rameezzaidi4067
    @rameezzaidi4067 7 месяцев назад

    This should be adopted in North America... The Salt is killing the cars 😭

  • @weebly7908
    @weebly7908 8 месяцев назад

    Great video! Very informative, keep it up! 👍

  • @LeCorbussyeir
    @LeCorbussyeir 8 месяцев назад

    All that is fine, buy why do they still keep on building cardboard houses in places prone to tornadoes

    • @kelvinsantiago7061
      @kelvinsantiago7061 18 дней назад

      @@LeCorbussyeir because they're cheaper to rebuild imagine having to rebuild a brick house everytime a tornado hits.

  • @danrhone9756
    @danrhone9756 8 месяцев назад

    Our tax money is the only way to design any Highway

  • @prestonknaack
    @prestonknaack 8 месяцев назад

    hey that’s my picture at 0:48, never thought i’d see it in a youtube vid lol

    • @ValentinShevtsov
      @ValentinShevtsov 8 месяцев назад

      Haha, that’s cool! Do you want me to credit you? I can put your name in the video description.

    • @prestonknaack
      @prestonknaack 8 месяцев назад

      @@ValentinShevtsov nah, you’re good, thanks for asking tho, i don’t mind ya using it at all, i just thought it was cool that a pic i took almost 5 years ago happened to come up in a video i just watched today