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you are a creepy man.
drewkipow 1 year ago
Did your hand feel cold when you dumped that liquid nitrogen on it?
scottiebobson 1 year ago
@scottiebobson Actually, it didn't feel cold. Because of the Leidenfrost Effect the feeling is more of cool (not cold) air being poured on my hand. However, when any liq N2 pools on my hand I do feel a "bite," which feels more like a bug nipping at me than anything cold.
CrazyScience1 1 year ago
that was cool how the hot dog became solid
gannadoslayer1 2 years ago
nice experiment! 5/5
Gomagomes 2 years ago
Does that insulating gas have a time limit? If the nitrogen didn't run off your hand fast enough would it freeze then?
Awesome video :)
vydak5000 3 years ago
The Liquid Nitrogen (LN2) must not be able to "pool" in the hand or anywhere else that you don't want to freeze. Needless to say having your lap soaking wet with LN2 is not good either.
Carl
carl95125 2 years ago
If you go to 1:04, you will see that I do "burn" myself...there are two white dots at the base of my middle finger. No damage at all, though. The LN2 pooled in the crevasse of my finger, freezing me like Carl mentioned.
CrazyScience1 2 years ago
Yes! It protects you for only 1 ~ 2 seconds.
TomCatFort 2 years ago
Okay, I am now pretty curious about how each of you found my video. Last week the count was around 500, and now it has tripled! Has a link been posted on a website? Do tell! :)
CrazyScience1 3 years ago
It's linked from a comment on reddit, in a thread titled "Is it possible to take advantage of the Leidenfrost Effect and safely dip your scrotum into a container of liquid nitrogen for 3 seconds?"
Short answer: No.
AstronautTeeth 3 years ago 2
"leidenfrost effect" search query : )
Headcrabb 2 years ago
eh, nice vid!
jb978 3 years ago
great video, i really liked the talking in to the fridge/oven/closet.
revanrules 3 years ago
I love the head in the oven effect. It reminds me of Alton Brown's "Good Eats" show on FoodTV. Why don't you and Alton show how to make LN2 ice cream? Thanks for posting,
Carl
carl95125 3 years ago
Hey, I'm still in high school but this is a really great expirement and I loved the explanation. You should really have you're own TV show. (I also loved the different shots in the oven and closet and everything.)
dejavu4rnp 3 years ago 2
Sounds really interesting. I worked with LN2 in my undergraduate studies at the Univ of Southern Maine. I received my BS there is 2005 and I've been teaching HS Chem since Fall 2006. Mostly it's just fun to play with this stuff!
aaronakeller 3 years ago
Professional credentials? Hmmm...well, I don't get paid to work on my PhD, but perhaps that is what you are asking about. I have a B.S. in biochem/biophysics, minoring in chemistry. Currently I am in my last year of my PhD in neurotoxicology. I work with LN2 often in the lab, and have stumbled upon some of its quirks. Before I knew there was such thing as a Leidenfrost effect, I found that getting *a little* LN2 on my skin didn't cause any damage.
CrazyScience1 3 years ago
Nice stunt. What are your professional credentials?
aaronakeller 3 years ago