Hand inside vacuum chamber experiment - GIF

Hand inside vacuum chamber experiment.

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Previously:

https://www.homemadetools.net/forum/...015#post160566
https://www.homemadetools.net/forum/...478#post196936
https://www.homemadetools.net/forum/...070#post138031
https://www.homemadetools.net/forum/...745#post193978
https://www.homemadetools.net/forum/...748#post193998

Wow. I hope nobody asks him what would happen if he put his head in a vacuum chamber.

Quote:

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Originally Posted by schuylergrace

Wow. I hope nobody asks him what would happen if he put his head in a vacuum chamber.

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His name is James Orgill and he has a PhD in chemical engineering. His voice is annoying as hell, but he's super smart and his Youtube channel is top shelf.

https://www.youtube.com/c/TheActionLab/featured

I think a hand operated vacuum pump is one of the devices used to assist sufferers of erectile dysfunction. Just in case you want to know!

I clicked over to his channel and realized I have seen a couple of his videos. Still, degrees notwithstanding, I would not have done that to the point he seemed to. I don't know how much vacuum he pulled, but I was envisioning tiny embolisms all through his hand and forearm. I just watched the video this GIF came from, and I'm still not convinced it was a good idea.

Quote:

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Originally Posted by nova_robotics

His name is James Orgill and he has a PhD in chemical engineering. His voice is annoying as hell, but he's super smart and his Youtube channel is top shelf.

https://www.youtube.com/c/TheActionLab/featured

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Many of the older generation people would have learned about the hazards of having your body subjected to both negative and positive pressures during science classes in school, through the demonstrations of placing objects such as grapes apples bananas or small cuts of meat in clear chambers then have the air pumped out or the pressure increased, while the teacher explained what was happening to the objects as they were going through the transformations.
I remember seeing such demonstrations in my earlier years in schools maybe in grade 5,6 or 7 and for sure in science and chemistry lab in high school. However, I was in school back during the Mercury, Gemini and Appolo era.
I highly suspect the practice of classroom demonstrations such as these may have fallen out of the educational curriculum for later generations.

Notwithstanding the very real risk of Compartment Syndrome.

http://en.m.wikipedia.org/wiki/Compartment_syndrome

I also have a problem with him and others calling such things "experiments." They aren't experiments, but demonstrations. We know what is going to happen--well, some of us do, and the rest could just look it up. An experiment implies the answer isn't known or hasn't been confirmed (as in checking another's work for repeatability). But anything you do on the Interwebs that's outrageous and science-y is an "experiment" these days.

Totally agree that this is a demonstration and not an experiment. I still find it amazing though that we can dive down many atmospheric multiples easily and safely, but remove that one tiny atmosphere and we basically become a balloon.

I remember many years ago talking to G. Harry Stine (author, etc.) about a skin suit that was NOT airtight. Seems as long as you support the skin with something like a compression sock it can handle vacuum.

I don't know if that research went anywhere, haven't heard about it in a long time and Harry died in 1997.