Check this out, pretty neat: http://www.metacafe.com/watch/718152/how_to_turn_water_into_ice_in_seconds/
It looks sort of fake to me. If that light didn't shine on it... but maybe its true but its hard to believe anything these days
wel, in siunce , the salt suppose to melt the ice, not make the water to becoem ice, but well yeah*shrugs* imma try it then
bvtsjm116 is right- when they first turn over the glass, there is a small pool of water on the table. The water drips upwards into the glass. At the end, the table is dry.
It's fake in my opinion. I've seen water boil at 10 degrees Celsius though - that is, about 45 degrees Fahrenheit or 283 kelvins. It is also possible to have liquid water at a temperature higher than 212 F (100 C, 373 K). Water boils when its vapor pressure is the same as the pressure of the container it's in. In an open system, the pressure is the atmospheric pressure (about 760 mmHg, or 1,013.2 hPa). By closing the system and changing the pressure, one can make water boil at any chosen temperature. By reducing the system's pressure, one lowers the boiling point (to 10 degrees Celsius or even lower!). On the other hand, by increasing the pressure one raises the boiling point, as done in modern PWR nuclear reactors, which are cooled by pressurized water which is still liquid at 300 degrees Celsius (573 K)
It's played in reverse. It's frozen at first, but there's water still not melted so it falls out when he tips it (this is probably the obvious catch). He waits until it melts (or defrosts it) and does that trick in reverse. Records the whole thing, plays it backwards, and voila, you have a fake trick. I could be wrong, but I've seen something like this before. You can tell it's editted at least because the screen kinda fades when the water begins to "freeze". Usually I wouldn't get things like this, I'm so proud of myself.
:roflmao: It's obviously a fake, but still it gets you thinking for a short while...like you want to believe that lighting a straw and putting it into a glass of water will cause it to freeze in 5 seconds :roflmao:
:lol: Can you guys see like a little haunted face in the ice at the beginning of the clip? Also, here are two more along the same lines (but real, since I agree now this one seems pretty fake): http://www.youtube.com/watch?v=yV7er-vj-RE http://www.youtube.com/watch?v=DpiUZI_3o8s Water is so cool.
:O: /..\ H....H Water has also the interesting property of being, by definition, an Arrhenius acid and an Arrhenius base at the same time. You see: H2O (aq) <=> H+ (aq) + OH- (aq) Liquid water dissociates slightly in hydrogen ion and hydroxide ion at room temperature. The presence of H+ makes it an Arrhenius acid, while the presence of OH- makes it an Arrhenius base. Of course, the concentration of those ions is very low (about 1x10^-14 mol/L) and the concentration of one is roughly equal to that of the other, therefore water is neutral. So, we could call water "hydrogen hydroxide" or "hydroxic acid". Other names of water are oxidane, dihydrogen monoxide, and oxidane.
