What is Digg?63 Comments
- trogdoor, on 10/12/2007, -0/+2"No digg....maybe this would be cool if they gave instructions how.............." if they did that they would get sewed when you froze your hand off.
- MrPhelps, on 10/12/2007, -0/+1Oxygen is also diamagnetic. I think the fog we see between the magnet and the superconductor is composed of liquid oxygen droplets (the liquefaction temperature of oxygen is quite higher than azote) which are attracted by the strong magnetic field (just a random thought).
- mdepolli, on 10/12/2007, -0/+1"in the middle (air) the electrons meet each other and cause repulsion, which in turn pushes the magnet up"
OMG someone urgently needs to tell this guy that magnetic fields are NOT caused by electrons that "meet each other"! The floating magnet effect is actually caused by the magnetic field generated by induced currents in the interior of the superconductive material. - Hypersapien, on 10/12/2007, -0/+1Remember kids, science is awesome!
- silent1, on 10/12/2007, -0/+1A hint to the OP: http://www.alphadictionary.com/articles/english_grammar_style/difference_between_their_there.html
- brokendaylite, on 10/12/2007, -0/+0No digg....maybe this would be cool if they gave instructions how..............
- Jakkaru, on 10/12/2007, -0/+0"If it got close to absolute zero why doesn't the guy wear gloves to touch it?"
cause hes an idiot who wants to lose his fingertip. - Jedi_2, on 10/12/2007, -0/+0Nice one. But where do i get liquid nitrogen?
-jagermo
It's actually pretty cheap costing about as much as a 16oz thing of cola for an 8oz container of liquid nitrogen. It can be bought at chemical supply stores or some universities might have some on hand, you need to have a protective thermiss though.
What is even more fun to deal with is Liquid Helium :} - jagermo, on 10/12/2007, -0/+0Nice one. But where do i get liquid nitrogen?
- haloevo, on 10/12/2007, -0/+0Definately awesome
- DeadKyle, on 10/12/2007, -0/+0You know, if there was a place with metal in the road or a skating rink with a metal floor the hover boards from back to the future might be a possibility
- matthewpang, on 10/12/2007, -0/+0"No digg....maybe this would be cool if they gave instructions how.............." if they did that they would get sewed when you froze your hand off.
Actually you could splash some(about maybe a teaspoon) on your hands accidentally and nothing would happen.In fact if you dip your hands in the stuff and yank it out quickly and nothing would happen either.(this is because the stuff would vapourise before it actually made contact)
Stupid thing to do would be to hold something that had been in contact with liquid nitrogen.Or have it run down your pants into your shoes and pool.Now that wouldnt be funny. - DannyB, on 10/12/2007, -0/+0Is everyone just going to use this site to post 'cool-but-old' stuff they found during a bored moment surfing the net? What's the target age range for this site? 10-14?
I was hoping it would become a serious alternative to /. but it doesn't look like it.
linker3000 posted by linker3000 (0) at 02:07 AM 12/22/05
Digg is a social bookmarking website. People post what they think is interesting on the internet, it does not always have to be about news. - Byrns5512, on 10/12/2007, -0/+0@trogdoor
I believe the correct word is "sewn" - trogdoor, on 10/12/2007, -0/+0Video isn't loading for me.
- Amplix, on 10/12/2007, -0/+0worked fine in firefox on osx for me.
Definitely a cool video though I kinda want to try it, but how? - Byrns5512, on 10/12/2007, -0/+0@diehell
http://www.monorails.org/tMspages/TPMagIntro.html - Darkstar2x, on 10/12/2007, -0/+0hehe science is fun
- Diehell, on 10/12/2007, -0/+0Nice....
Any applications of this in the real world?...
probably maybe?... - Cheeze_Head, on 10/12/2007, -0/+0@ Hypersapien & @ et all
I agree, I hope that this inspires kids to study science in high school. - theonlybigboss, on 10/12/2007, -0/+0thats so god like, I MUST OBTAIN THIS POWER!
- inactive, on 10/12/2007, -0/+0> Remember kids, science is awesome!
If science is so god damned "awesome", were the fsck are the room temperature superconductors I was promised back in the '80s?
Science is, mostly, a lot of hard work with such little payoff that one can go an entire career without making a single significant contribution (all you PhD candidates, take note!).
> Video isn't loading for me.
needs flash. cut and paste URL into IE (that whore of a browser will load anything)... and yes, all my IE bookmarks are flash/ie only sites; very handy when getting to browser arguments with ignorant SOBs. - trogdoor, on 10/12/2007, -0/+0Just doesn't work in firefox but works in safari.
- durfur, on 10/12/2007, -0/+0science: it's off da hook!
- randomtask, on 10/12/2007, -0/+0Mmmm. Superconductolicious.
- godmode, on 10/12/2007, -1/+1its the devils black magic! evil!
+digg - Noah0504, on 10/12/2007, -0/+0Just one more entertaining thing that can be done with a little physics know-how.
- tobsterius, on 10/12/2007, -0/+0Trogdor, Bryns5512:
The correct word is sued. Sued. Not Sewed, or sewn. Sued. - deepsub, on 10/12/2007, -0/+0The quality of posts has really been on a downward slide since Digg punched Slashdot in the eye.
- rohcky, on 10/12/2007, -0/+0"In fact if you dip your hands in the stuff and yank it out quickly and nothing would happen either."
I won't try it myself, but you sure can demonstrate it for us. - phoenixdig, on 10/12/2007, -0/+0Sorry they dont use superconductors just REALLY powerful magnets
- cillian, on 10/12/2007, -0/+0OMFG amazing. But why does it float at a wierd angle? And why doesn't it "fall off" like magnets repelling usually do? The end is really cool too. Does that black thing crack as it warms up?
- MrPhelps, on 10/12/2007, -0/+0WOW this is the most bogus explanation of supermagnetic levitation I have ever read ... Besides the Meisner effect is not the superconductive effect itself, but the field lines being expelled from the superconductor because of induced currents.
- waj3, on 10/12/2007, -0/+0Tobsterius:
Bryns5512 knows this, he was just correcting the word "Trogdoor" used rather than what he meant. Personally, I like to do the same; I just don't see the point when the guy doesn't even spell his own handle correctly. :) - Bren, on 10/12/2007, -0/+0Cooooooooool. Where the antigrav sled???
- matthewpang, on 10/12/2007, -0/+0"In fact if you dip your hands in the stuff and yank it out quickly and nothing would happen either."
"I won't try it myself, but you sure can demonstrate it for us."
I do it all the time at science exibitions and the sort.Come to Malaysia and I shall. - xpack10, on 10/12/2007, -0/+0Sweet video. Could this possibly mean flying cars? I wish!
- nihilator, on 10/12/2007, -0/+0I friggin did this experiment in high school. But it's still cool today.
- phoenixdig, on 10/12/2007, -0/+0Screw that using superconductors to make a magnet float....
These guys make frogs float with their superconductors.
http://www.hfml.science.ru.nl/froglev.html - mwheeler1982, on 10/12/2007, -0/+0As far as I knew, liquid nitrogen was pretty far from absolute zero. I thought it was around 70 degrees kelvin..
- brad.arth, on 10/12/2007, -0/+0If it got close to absolute zero why doesnt the guy wear gloves to touch it?
- Agret, on 10/12/2007, -0/+0Pretty cool stuff, I like this.
- bt.tong, on 10/12/2007, -0/+0I did the same experiment in physic class.
- MrMysterious, on 10/12/2007, -0/+0Thasts pretty neat.
- crapiolio, on 10/12/2007, -0/+0Old, this appeared on Digg likw two weeks ago.
- inactive, on 10/12/2007, -0/+0science is your friend. til it kills you.
- 3Den, on 10/12/2007, -0/+0Not exactly the best explanation of the meisner effect.
A more interesting concept is diamagnetic levitation. Water is slightly diamagnetic, so in the presence of a strong enough magnetic field, water reacts.
Levitating frogs anyone?
http://www.hfml.science.ru.nl/froglev.html - interiot, on 10/12/2007, -0/+0http://en.wikipedia.org/wiki/Diamagnetism
- sjk8990, on 10/12/2007, -0/+0Superconductivity gets a digg? I've got a new invention that I'm going to post here -- it's called the "internal combustion engine"!
- matthewpang, on 10/12/2007, -0/+077K
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