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talkpoliticsFluoroscein.
It could be used for all sorts of purposes. It's especially useful when working with microscopic organisms, or when you want to see how exactly rivers flow. NASA uses it to find space capsules that have landed somewhere at sea. It's a non-toxic bright-green substance that could be made in a cup of water. Here's how.
Oobleck.
Generally, liquidified solid substances behave in different ways. But the case with Oobleck, a Newtonian fluid of a starch-to-water ratio of 2:1 is a bit different. It has the properties of an ordinary liquid (most of the time anyway). But when you hit it with force, it instantly hardens and behaves like a solid object. Here's how to achieve that.
Dancing oobleck.
Yep, sometimes it's fun hitting oobleck or just walking through it. But it's no less fun to control the substance, using sound waves. You could make it "dance" by putting it on a loudspeaker, and hitting the base to the max. The sound waves would make the oobleck form solid shapes that make various dance moves. If that's not enough, you could add some food paint to make it even more spectacular. Here's how.
Instantaneous water freeze.
Deionized water could be cooled beyond the freezing temperature, i.e. it would keep its liquid form, but now there'll no longer be nuclei around which ice crystals could form (like some dirt in the water, or a chunk of ice as it's shown here). The water is so cold, adding an ice crystal leads to an instantaneous freezing effect across the whole volume of the supercooled liquid. Here's how to do it.
Melting spoon.
Nope, you're not stirring some acid with the spoon or anything like that. In fact, the spoon is made of galium, a metal with a freezing temperature of only 29.77'C. It's enough to stir some warm water with it to make it melt. You could achieve the same result by holding it in your head. Your body temperature is high enough to turn it into liquid. Here's what you need to make the experiment.
Magnetic liquid.
How could we manipulate this black liquid through the glass like that? Simple: it's a magnetic sybstance called ferrofluid. You could do that with an ink toner, cooking oil, and a rare earth magnet that could be found at the local ironware store. Here's how to make ferrofluids.
Instant hot ice.
We already saw how supercooled water freezes instantly at the moment it's touched by ice. Well, sodium acetate can do the same. When the liquid reaches the point of nucleization, the supersaturated solution of the sodium acetate rapidly creates crystals and relseases the heat. If you pour it into a plate, it would form sculptures of "hot ice". Here's how to do it.
Disappearing marbles.
It's obvious: the spoon is putting transparent marbles into the water. But at the moment they're dipped in, they disappear. These are made of a superabsorbing polysaccharide, which could take up to 300 its own weight in water. When the marbles are fully dipped, they have a refraction index similar to that of the water itself. This means that light is bent in the same way through them as it is through water. For our eyes, there's no difference between the two - so the marbles become practically invisible. Here's how to do that.
Colorful lactic art.
The tension on the surface of the milk decreases when it's touched by cotton (which is first soaked with ordinary soap water). Those parts of the milk which are unaffected by the soap, would try to "run away". This leads to the mixing of the colorful ink with the milk. If you hold the cotton at the same spot and touch the liquid with several sticks of this sort, you could create even more psychedelic vortexes. Here's how.
A bubble of dry ice.
Nah, this ain't no nuclear explosion. This reaction happens when the bubbles get in touch with dry ice (i.e. frozen CO2, which you could buy from the local store). When you put a piece of this ice on water, it creates an enormous amount of vapor. If you add some soap to the liquid before putting the ice in, you'd get a bubble that could occupy the entire surface of the cup. When it pops, you've got the result. Here's how.
Waterproof sand.
The sand that's being poured into this vessel is covered with a hydrophobic chemical. This means that it "hates" water. It won't dissolve in it, and the grains of sand will cluster together as much as possible to avoid contact with it. That's what causes these snake-shaped scultures. When you remove the sand from the liquid, it'll again start to behave like usual, and will lose its shape. Here's how to do that.
Inflammable candy jellies.
It's a myth that consuming sugars leads to excessive amounts of energy. Still, you could indeed get an "energetic" reaction from a single candy teddy bear. Or at least from the carbohydrates in it. All you have to do is dip it into slightly warmed potassium chlorate. That would cause the so called exothermic reaction, or in other words, release heat. Here's how you can do it.
Bending water.
Ah, the miracle of static electricity! The positively charged particles in water are attracted to those of negative charge contained in the pipe. When you hold them closer together, the liquid starts to bend - literally. You could achieve the same if you take a comb, you comb yourself for a while, and then bring it to a jet of running water. Here's how.
Slowing down gravity.
Nope, the guy in the image doesn't have super-reflexes. The cube that's falling through that copper pipe is actually a magnet. But it's not attracted by the pipe. What's happening is that the magnetic field that the pipe creates, is interacting with that of the magnet. This way the falling is slowed down. Still, gravity prevails over the force that counteracts it, and the magnet falls through eventually (albeit a bit slower). Here's how to do that.
It could be used for all sorts of purposes. It's especially useful when working with microscopic organisms, or when you want to see how exactly rivers flow. NASA uses it to find space capsules that have landed somewhere at sea. It's a non-toxic bright-green substance that could be made in a cup of water. Here's how.
Oobleck.
Generally, liquidified solid substances behave in different ways. But the case with Oobleck, a Newtonian fluid of a starch-to-water ratio of 2:1 is a bit different. It has the properties of an ordinary liquid (most of the time anyway). But when you hit it with force, it instantly hardens and behaves like a solid object. Here's how to achieve that.
Dancing oobleck.
Yep, sometimes it's fun hitting oobleck or just walking through it. But it's no less fun to control the substance, using sound waves. You could make it "dance" by putting it on a loudspeaker, and hitting the base to the max. The sound waves would make the oobleck form solid shapes that make various dance moves. If that's not enough, you could add some food paint to make it even more spectacular. Here's how.
Instantaneous water freeze.
Deionized water could be cooled beyond the freezing temperature, i.e. it would keep its liquid form, but now there'll no longer be nuclei around which ice crystals could form (like some dirt in the water, or a chunk of ice as it's shown here). The water is so cold, adding an ice crystal leads to an instantaneous freezing effect across the whole volume of the supercooled liquid. Here's how to do it.
Melting spoon.
Nope, you're not stirring some acid with the spoon or anything like that. In fact, the spoon is made of galium, a metal with a freezing temperature of only 29.77'C. It's enough to stir some warm water with it to make it melt. You could achieve the same result by holding it in your head. Your body temperature is high enough to turn it into liquid. Here's what you need to make the experiment.
Magnetic liquid.
How could we manipulate this black liquid through the glass like that? Simple: it's a magnetic sybstance called ferrofluid. You could do that with an ink toner, cooking oil, and a rare earth magnet that could be found at the local ironware store. Here's how to make ferrofluids.
Instant hot ice.
We already saw how supercooled water freezes instantly at the moment it's touched by ice. Well, sodium acetate can do the same. When the liquid reaches the point of nucleization, the supersaturated solution of the sodium acetate rapidly creates crystals and relseases the heat. If you pour it into a plate, it would form sculptures of "hot ice". Here's how to do it.
Disappearing marbles.
It's obvious: the spoon is putting transparent marbles into the water. But at the moment they're dipped in, they disappear. These are made of a superabsorbing polysaccharide, which could take up to 300 its own weight in water. When the marbles are fully dipped, they have a refraction index similar to that of the water itself. This means that light is bent in the same way through them as it is through water. For our eyes, there's no difference between the two - so the marbles become practically invisible. Here's how to do that.
Colorful lactic art.
The tension on the surface of the milk decreases when it's touched by cotton (which is first soaked with ordinary soap water). Those parts of the milk which are unaffected by the soap, would try to "run away". This leads to the mixing of the colorful ink with the milk. If you hold the cotton at the same spot and touch the liquid with several sticks of this sort, you could create even more psychedelic vortexes. Here's how.
A bubble of dry ice.
Nah, this ain't no nuclear explosion. This reaction happens when the bubbles get in touch with dry ice (i.e. frozen CO2, which you could buy from the local store). When you put a piece of this ice on water, it creates an enormous amount of vapor. If you add some soap to the liquid before putting the ice in, you'd get a bubble that could occupy the entire surface of the cup. When it pops, you've got the result. Here's how.
Waterproof sand.
The sand that's being poured into this vessel is covered with a hydrophobic chemical. This means that it "hates" water. It won't dissolve in it, and the grains of sand will cluster together as much as possible to avoid contact with it. That's what causes these snake-shaped scultures. When you remove the sand from the liquid, it'll again start to behave like usual, and will lose its shape. Here's how to do that.
Inflammable candy jellies.
It's a myth that consuming sugars leads to excessive amounts of energy. Still, you could indeed get an "energetic" reaction from a single candy teddy bear. Or at least from the carbohydrates in it. All you have to do is dip it into slightly warmed potassium chlorate. That would cause the so called exothermic reaction, or in other words, release heat. Here's how you can do it.Bending water.
Ah, the miracle of static electricity! The positively charged particles in water are attracted to those of negative charge contained in the pipe. When you hold them closer together, the liquid starts to bend - literally. You could achieve the same if you take a comb, you comb yourself for a while, and then bring it to a jet of running water. Here's how.
Slowing down gravity.
Nope, the guy in the image doesn't have super-reflexes. The cube that's falling through that copper pipe is actually a magnet. But it's not attracted by the pipe. What's happening is that the magnetic field that the pipe creates, is interacting with that of the magnet. This way the falling is slowed down. Still, gravity prevails over the force that counteracts it, and the magnet falls through eventually (albeit a bit slower). Here's how to do that.
(no subject)
Date: 15/5/15 10:19 (UTC)[Error: unknown template video]
And of course, the double-slit experiment, done at home.
[Error: unknown template video]
(no subject)
Date: 15/5/15 15:58 (UTC)(no subject)
Date: 16/5/15 00:24 (UTC)"and the magnet falls through eventually"
That magnet (Neodymium) is very very very powerful magnet. You cannot have cufflinks around it for example.
(no subject)
Date: 16/5/15 06:35 (UTC)(no subject)
Date: 16/5/15 06:43 (UTC)(no subject)
Date: 16/5/15 06:42 (UTC)