Does Space Travel Create Superbugs? (And Other Questions)

In today’s Lightning Round Video, we talk about the danger of space bugs, the use of AI in YouTube videos, and the demise of the International Space Station, plus more thoughts and questions from channel supporters on Patreon.

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TIMESTAMPS
0:00 - June Lightning Round
0:57 - Is The Space Station Too Old?
3:42 - Post Apocalyptic Survival... By Train?
6:24 - AI Generated YouTube Videos
12:08 - Why Is Partial Pressure More Important?
13:40 - New Members
14:42 - Does Spacetravel Create Superbugs?

[matthewdoiron]

For those of you currently on the ISS: Urine trouble!

[HobbesNJoe]

13:31 At a lower pressure, there’s a lower number of oxygen molecules entering your lungs. So a lower pressure means your body needs a higher concentration to get the same number of molecules per breath.

[Zanderuu]

My spacetoilet joke would probably be about someone leaving a floater in there..

[Gil-games]

As a train enthusiastic: the most maintenance on tracks are needed bc of the travel frequency. That's not a thing here, but they would be so heavily covered in snow that even that "monster" would slow down eventually and stop. So not really viable.

[theCodyReeder]

As for the oxygen concentration question: simple answer is its not the pressure at all that matters. It's just how many oxygen molecules collide with a blood cell or whatever in a given time. Higher total pressure eg adding a bunch of nitrogen does nothing because nitrogen doesn't do anything when it collides. Higher oxygen pressure means there are more of those available.

[purplex_purple]

I miss watching you while waiting for class in school. Been 4 years now. Now I’m watching you before infantry classes

[paulhaynes]

Only just noticed that you're getting close to 2 million subscribers. That's one hell of an achievement for a serious channel.

I can't remember when I first started watching your channel, but you were one of my first YouTubers (and the only one of the 'originals' I still watch). So it's been interesting watching the channel develop.

In some ways it has improved, as you've got more experienced and developed a sharper vision and purpose, but it's remarkable that, in many ways, the channel hasn't really changed at all. It is still the same basic format, much the same presentation, and pretty much the same sort of topics.

You seem to have found your own YouTube 'sweet spot' and worked out both how to keep it developing without losing its essential identity, and how to cope with the workload and stress of running it without burning out.

When people discuss how to be a success on YouTube, they usually point to the multi-million subscriber channels, like Mr Beast. But I think those are the exceptions that 'prove' the rule - one-offs - they don't really teach the average Joe (!) how to develop a successful channel.

If I were asked to point to just one channel as a good template to follow, the answer would be simple - this one.

[oriongaby]

Partial pressure of O2 in air is more important because when you have a gas interacting with a liquid (blood), the concentration of said gas in the liquid will be proportional to the partial pressure of the gas. So for the O2 to properly diffuse trough the respiratory membrane in the alveoli, the alveolar air has to have a higher O2 partial pressure than the O2 partial pressure in the venous blood. The gas exchange process does not use any energy, it follows a concentration/pressure gradient. In other words; ppO2air has to be higher than ppO2blood for O2 to diffuse into blood.

[TheGavric]

I'm constantly fascinated by how many followed YouTube channels we have in common.

[tenprettyflowers]

Imagine being 250 miles from the closest working toilet

[revgurley]

If you aren't familiar with Wings of Pegasus, Fil is great at putting music through software to see if the voices have been auto-tuned or pitch corrected. Sad to see almost everything after 1998 is one or the other.

[Matt]

I was fortunate enough to get to go to NASA space camp in Huntsville, AL when I was a preteen. This was before the ISS was completed. They actually had a segment of the ISS while I was there and we got to see it in person. They had a makeshift floor made of I assume plexiglass so that we could walk inside it. I remember them telling us something about needing to make sure it's perfectly clean because bacteria thrive in space. I don't remember exactly what they told us but it was something along those lines.

[hear]

Joe, your videos are the perfect mix of entertainment and education—thank you for making discovery so fun!

[milksheihk]

RE: Snowpiecer, the train wasn't designed specifically to survive an apocalypse, it was more of a land titanic(powered by some kind of effectively infinite engine) that happened to be on its maiden voyage when a climate change experiment triggered a rapid global ice age, the people on that train, & generations born on it, are the only known living humans.

[kamaur]

Great reference on the Rick Beato video. I wondered the same thing. If you grow up with AI generated vs Human created items can you tell the difference. I think the general public will not, but people that grow up with someone that specialize in something are taught more in that specialty than the general public at an earlier age. This give them the tools to know/pick up on what is AI vs Not.

[Youbetternowatchthis]

The concept of the train in Snowpiercer is that the engine runs on fusion and it constantly has to sccop up water (snow) to get probably the tritium for fusion or something like it

[thommozdenski]

I can't stand AI spoken YouTube videos. Give me a human announcer any day.

[kristiangeiger]

You have inspired me to start my own page, science communication meets This Old House. Can't wait!

[Amusingmuse]

"The filtration system isn't working?
I thought this urine tasted a lil funny ..."

[rajmathew]

I'm a bit late but so happy I discovered this channel. My information deep dive needs are met.