I stick my hand (momentarily) directly into liquid nitrogen but don't suffer any injuries due to the Leidenfrost effect. The Leidenfrost effect is the formation of a gas barrier between a hot surface and a boiling liquid if the temperature difference is great enough. This gas barrier greatly slows the heat transfer between the two and allows the liquid to last longer and consequently the hot surface to remain hot longer. This effect can be seen in a frying pan as it's being heated. At first the water quickly boils as it's dropped in but at a hot enough temperature the Leidenfrost effect takes over and makes the water skate around the surface lasting a very long time. Liquid nitrogen vs. a room temperature object will also exhibit the effect preventing it from instantly freezing the object... such as my hand. Hand vs. Liquid...
Main article: amasci.com DANGEROUS DEMO! Can't get liquid nitrogen? Then make your own -80C version by using Dry Ice. Note that this demonstration involves several major safety hazards, and should only be performed by skilled educators. Note that dry ice comes from companies listed in your local yellow pages. Some welder supply stores carry it. In Seattle, you can find it in the seafood section of QFC neighborhood grocery. Ask for dry ice pellets rather than slabs, so you won't have to chop it up yourself. . Lots more stuff at SCIENCE HOBBYIST amasci.com . Note: trolls/spammers blocked immediately, zero tolerance Poor man's...
Aaron Keller, Chemistry teacher, demonstrates the amazing properties of liquid nitrogen. He explains each demonstration in an understandable way. The temperature of liquid nitrogen is -196C (-321F). He explains how a dewar flask works. He pulls balloons out of a cooler, showing the expansion of a gas as it warms. He demonstrates the explosive power of the expansion of liquid nitrogen in an enclosed container. Liquid nitrogen is so cold that the floor is like a hot griddle. Liquid nitrogen has a very low viscosity. He demonstrates how brittle a flower becomes when frozen in a liquid nitrogen bath. Finally, he shows how to shatter a racquetball. As a bonus he shows how nitrogen gas can be used to put out a candle flame. Liquid Nitrogen...
At Penguicon 4 in 2006, Nifty Guest Howard Tayler of www.SchlockMercenary.com took this video of Penguicon co-founder Rob Landley throwing a bowl of liquid nitrogen in the swimming pool, and the resulting billow of fog. Liquid Nitrogen...
Number 7 on the periodic table, Nitrogen is the most abundant element in Earth's atmosphere. More elements at www.periodicvideos.com Nitrogen -...
Here we freeze acetone with liquid nitrogen. This is a little different from freezing water because the mist produced is very dense and you can actually scoop it up in your hand very easily. I'm not actually touching liquid nitrogen, I'm just touching the acetone mist above it. Also when it freezes the acetone becomes a snow rather than just creating a sheet of ice like in water. Check out our other cool videos! www.nurdrage.com Freezing Acetone...
READ HOW IT'S DONE HERE! ( www.popsci.com ) Boing Boing Video teams up with PopSci and Theo Gray ( MAD SCIENCE author) for an eerily beautiful science experiment -- how to cast solid, if fleeting, shapes from normally liquid mercury -- just keep it at 320 degrees below zero, with liquid nitrogen. Snip from Theo's experiment, documented in this video: Sculpting in...
What happens when liquid nitrogen and liquid oxygen are exposed to a strong magnetic field? [Closed Captioned] Liquid Nitrogen...
Most people break hearts with words. How do nerds break hearts? with Liquid Nitrogen! Disclaimer: This is actually a pig's heart that was obtained from a pig that was already being processed into food products. No humans were harmed, or unlawful suffering to animals was caused outside of established food industry practices. BREAK HEARTS with...
To download this video please go to downloadvideos.co.nr A ring stand is set up with two rings, each holding a filter paper spread with nitrogen triiodide. The bottom filter paper is touched with a feather, causing an explosion that detonates the other sample of nitrogen triiodide. Close up views and slow motion of this very dangerous reaction are shown. Nitrogen...
Nitrogen Cycle. AP Environmental Science project. Nitrogen Cycle
Misha bombs the pool with liquid nitrogen. The explosion sent an impressive shock wave through the ground!!! Liquid Nitrogen...
2 holes are punctured at a slanting/glacing angle into a ping pong ball. It is then immersed in liquid nitrogen. The air inside it cools. This lowers the air pressure inside the ping pong ball. Liquid nitrogen then partly fills the ping pong ball. The ping pong ball will start to spin as cold liquid nitrogen boils shooting out cold nitrogen gas from these 2 holes. Liquid Nitrogen...
What happens when you have burning thermite and liquid nitrogen? Brainiac Thermite...
There is not a better CPU cooling system than liquid nitrogen. We learned firsthand how to sufficiently cool the Intel P4 to -196°C to bring it past the 5 GHz mark. For the non-believer, the THG video capture it all on tape. 5 GHz Project:...
Check out this and other cool science experiments at www.stevespanglerscience.com Steve Spangler surprised meteorologist Becky Ditchfield with an in-studio demonstration of his liquid nitrogen explosion. The reaction on her face is priceless. About Steve Spangler Science... Steve Spangler is a celebrity teacher, science toy designer, speaker, author and an Emmy award-winning television personality. Spangler is probably best known for his Mentos and Diet Coke geyser experiment that went viral in 2005 and prompted more than 1000 related YouTube videos. Spangler is the founder of www.SteveSpanglerScience.com, a Denver-based company specializing in the creation of science toys, classroom science demonstrations, teacher resources and home for Spangler's popular science experiment archive and video collection. Spangler is a frequent guest on the Ellen DeGeneres Show where he takes classroom science experiments to the extreme. Check out his pool filled with 2500 boxes of cornstarch! Cool Science Toys - www.SteveSpanglerScience.com Sign up for the Experiment of the Week - http Watch Spangler's Science Videos - www.stevespanglerscience.com Attend a Spangler Hands-on Science Workshop for Teachers - www.stevespanglerscience.com Visit Spangler's YouTube Channel - www.youtube.com Join the conversation on Steve Spangler's blog - www.SteveSpangler.com Additional Information On the education side, Spangler started his career as a science teacher in the Cherry Creek School district for 12 <b>...</b> Liquid Nitrogen...
Complete video at: fora.tv Chef Ferran Adria, head chef of elBulli, and Harold McGee, author of On Food and Cooking, describe how liquid nitrogen is used in restaurant kitchens to create innovative dishes like alcohol sorbets and frozen pistachio puree truffles. ----- No one can get into elBulli, Ferran Adria's restaurant on the northeast coast of Spain. But plenty of people certainly try: every year, the restaurant receives over two million requests for only 8000 seats during the six months it is open. For the other six months, Adria, who is proud to be called the ..." onmouseout="mouseOutImage(this, '4', 'FFFFFF')" onmouseover="mousOverImage(this,'t3VPeyYL-fI',1, '4','DD424E')" /> Cooking with...
Song is from SHANGO Thanks to my brother for the inspiration. Nitrogen pt. 1 -...
I have no idea where I found this, but this is a clip of what happens when you dump liquid nitrogen into a swimming pool. I think the general consensus is that it's liquid nitrogen rather than dry ice, and I'm inclined to go with it so please please try to avoid arguing in the comments over whether it's dry ice or liquid nitrogen (which incidentally are not the same thing), or whether the girl jumping is was stupid for doing it, or whether the guy holding the bowl was dumb for just using a towel to protect himself. It's just a video! Liquid Nitrogen...
Place a couple of quarts of liquid nitrogen in a large plastic container, tie a large lead weight to it and throw it in the river and this is what you get. The water muffles the explosion and accelerates the expansion of the cold liquid nitrogen. Underwater Liquid...
I got quite a lot of msgs saying they liked the stuff in the lab, so I figured I would see if another such vid. got a similar reception. While passing through the UK I did some work in a lab involving liquid nitrogen. The stuff is dirt cheap and an invaluable tool of science, however its also fascinating stuff to play with and there is always some left at the end of the day :-) . Naturally there are some hazards to handling liquid nitrogen, but to be honest, there are larger hazards from fueling your car yknow pumping 10+ gallons of highly flammable liquid into a, typically plastic fuel tank. Anyways some cheap yuks with liquid nitrogen enjoy! ;-) Some Cheap Yuks...
Join CPC's intrepid reporter James Morris as he visits the overclockers from Benchtec at their annual Liquid Nitrogen Overclocking Party. Minus 192 degrees celsius? Bring it on... Custom PC visits...
This is what happens when you try to make liquid nitrogen ice cream in the blender. Will it Blend -...
creative and witting explanation of the nitrogen cycle by two FLHS APES students. APES nitrogen cycle

Page: 1 of 563

Next Page