Chemist Muhammad Qureshi dumps a bucket of liquid nitrogen over his head for the ALS Ice Bucket Challenge. (Image: YouTube)
© 2024 Blaze Media LLC. All rights reserved.
Watch: Chemist Takes the Ice Bucket Challenge to a New Level With Liquid Nitrogen
September 01, 2014
"That was really cool."
Chemist Muhammad Qureshi took the wildly popular ALS ice bucket challenge to a new level in a YouTube video published Saturday, dumping a bucket of liquid nitrogen over his head instead of ice water.
"So a lot of you are saying that since this is very dangerous, won't I freeze, won't I get frostbite?" Qureshi said in the video, filmed at the University of Toronto. "Well, thankfully, there's something called the leidenfrost effect, which will save me."
The Leidenfrost effect occurs when a liquid comes into contact with a surface that is at a temperature much greater than its boiling point, and it causes the liquid to vaporize at such a rate that it forms a layer of insulating vapor between it and the surface. This means that a cryogenic liquid (or any light porous material soaked with it) will lift itself up from the floor and start to hover. [Emphasis added]
Qureshi warned that the experiment was extremely dangerous, and not to be tried at home.
Muhammad Qureshi dumps a bucket of liquid nitrogen over his head for the ALS Ice Bucket Challenge. (Image: YouTube)
Muhammad Qureshi dumps a bucket of liquid nitrogen over his head for the ALS Ice Bucket Challenge. (Image: YouTube)
Muhammad Qureshi dumps a bucket of liquid nitrogen over his head for the ALS Ice Bucket Challenge. (Image: YouTube)
Muhammad Qureshi dumps a bucket of liquid nitrogen over his head for the ALS Ice Bucket Challenge. (Image: YouTube)
"I gotta be honest," Qureshi said at the end of the video. "This is much, much colder than ice water. But nonetheless, that was really cool."
You can watch the complete video, below:
Want to leave a tip?
We answer to you. Help keep our content free of advertisers and big tech censorship by leaving a tip today.
Want to join the conversation?
Already a subscriber?
more stories
Sign up for the Blaze newsletter
By signing up, you agree to our Privacy Policy and Terms of Use, and agree to receive content that may sometimes include advertisements. You may opt out at any time.
© 2024 Blaze Media LLC. All rights reserved.
Get the stories that matter most delivered directly to your inbox.
By signing up, you agree to our Privacy Policy and Terms of Use, and agree to receive content that may sometimes include advertisements. You may opt out at any time.