BigMoosie
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Superconductor Levitation
BigMoosie replied to labview1958's topic in Modern and Theoretical Physics
Sorry to derail you but I have a question. I was thinkin the other day that it would be cool to have electromagnetic plates (literally dinner plates) and magnetic cutlery that hovers above your plate, is this feasible? -
That detail is not important, the bodies just have to rotate respective to each other.
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Let me know if I worded that badly. In the meantime I have another question. A planet rotates once per day. And it has a moon that orbits it across its equator once per day and the moon itself rotates once per day so it always faces the planet. Imagine there are no other objects in the universe apart from these two bodies. It would appear that they are both stationary; not spinning or moving. In that situation one on the planet would expect the moon to fall, so would I, isn't everything relative?
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Wait... arent the two half equations: [math]Na^{1+} + e^{1-} \rightarrow Na[/math] and [math]Cl^{1-} \rightarrow Cl+ e^{1-}[/math] What happens to the electricity you send to it? Is electrostatic synonymous with ionic? Or am I totally off track?
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If the fabric of space is expanding then the distances between galaxies is expanding, but this must also mean that the galaxies themselves are expanding. If this is so, then isnt that the equivalent of space staying constant and the ratio of light-speed to time changing? We presume that space is expanding because galaxies are moving apart too fast, but what if the reason they appear to be moving was just because the light was emmitted at a date when time was slower, and now that it is faster the light reaches us and it appears to be severely red shifted. After a certain distance time would have been too slow for it too have reached us yet explaining why it is unobservable. Please let me know if this is flawed, and also what observations bring scientist to conclude that space is expanding.
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Help Me Understand The Big Bang and Universe
BigMoosie replied to GrandMasterK's topic in Relativity
Grand Master K! Are you kieran? Cos I know a guy who goes to my school who goes by the alias Grand Master Kieran. This would be a whacky coincidence if you are. Matter cannot move faster than the speed of light, so I would expect a nucleus to reach a point where it cannot move faster due to this restriction. Does this apply even at a quantum level? -
I'd say it is probably less than zero centigrade. You should get a better water system then because my water is probably closer to your estimate of ice.
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Dropping reactive metals in water is always fun yes, but that has little to do with this "gentle" experiment, in fact you probably read the post wrong, the aquarium is not supposed to have any water in it. It sounds awesome, I so have to try it out, if it goes well that is the best contender yet.
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I doubt I will be able to do this, I'm living in an ordianary home and have no access to anything other than the average kid. Thanks though. Sorry, sodium chloride.
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Element 1 has 1 proton' date=' element 2 has 2 protons. It just makes sense to say element 0 has 0 protons. Neutrons however may be of any quantity (isotopes). I hadnt considered an electron but I guess that too could be an atom of element zero. Heck, even a quark or a higgs boson would work. Space is zero matter, which is a quantity. OK I admit, the vacuum thing may be pushing it, but what about the other suggestions?
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I too am stuck there, source provides no clue on that level, please help, I am enjoying this and this faulty level is preventing my fun <html> <head> <title>APPRENTICE : dievo.org - Level3</title> <style> <!-- BODY{margin: 0 0 0 0; background-attachment: fixed;} a:link {text-decoration: none; color: #cccccc} a:visited {text-decoration: none; color: #cccccc} a:hover {text-decoration: underline; color: #000000} --> </STYLE> </head> <body bgcolor="#DbDbDb"> <table width="100%" height="100%" border="0" cellpadding="0"> <tr> <td height="1" valign="top"> <img src="../apprentice.jpg"></td> </tr> <tr> <td height="395" valign="top"> <table width="728" border="0" cellpadding="20"> <tr> <td width="669"><font size="2" face="Verdana"> Tricky? Ah, this <b>isn't</b> the final level, but it's quite tricky </font></td> </tr> </table> </td> </tr> <tr> <td height="1" valign="bottom"><img src="../apprentice_foot.jpg"></td> </tr> </table> </body> </html>
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The universal indicator sounds like a perfect idea, that could be purchased at a hardware store or something? budullewraagh: well she teaches a year 4/5 class, last week she did that plastic cup phone thing and the week before that she taped a straw to a balloon and let it blow along a string. Very basic stuff, the kids enjoyed it, but I know that at that age I would rather have been doing something more advanced. Flames and bangs are best avoided (but some leniancy) as she doesnt want the kids duplicating her experiments and getting hurt. Otherwise it can be anything that will make a kid that age go wow!
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They do not carry energy but information. The energy exists as the potential difference between the two object's locations. Before you start arguing this you should recall that photons are massless too.
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I'd suggest iteration
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Because each period of the periodic table of elements has less gases would we eventually have only metals after like 150 or so? Or is there something about the noble gases that would stop this trend?
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I dont remember that being part of the definition of an element, the ability to count it.
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Hi, my mum has told her students (ages: 9/10/11) that she will do one science experiment per week. What would you suggest to be some interesting experiments for her to do? I suggested she get some batteries and graphite electrodes to break water into its constituents and make a bang but she doesnt want her kids going home and hurting themselves. Any ideas? I ask this in the chemistry section but it is not restricted to this field of science.
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Does it make sence to say that elemet zero of: Isotope 0 is a vacuum? Isotope 1 is a neutron? Isotope 2 is a dineutron? Isotope [math]\infty[/math] is a neutron star? I propose we call them goneMoosium, smallMoosium, bigMoosium and massiveMoosium respectively.
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Hi, how does one go about getting a sample of sodium element? It only has to be pure enough to have some fun with in water . I read something a while back about heating to 500 degrees C in Argon, that doesnt sound like I would be able to do that. Does anybody know of a simple method other than purchasing it?
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If you answer correctly would you get more marks? Sounds very unfair to me. Are you sure that by tree it was meant litterally a tree that lives and grows in the dirt? Or the concept of the network of a tree?
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Follow the working in this: [math](-1+\sqrt{3}i)^3[/math] [math]= (-1+\sqrt{3}i)(-1+\sqrt{3}i)^2[/math] [math]= (-1+\sqrt{3}i)(1-2\sqrt{3}i-3)[/math] [math]= -1+2\sqrt{3}i+3+\sqrt{3}i+6-3\sqrt{3}i[/math] [math]= 8[/math] Therefore [math]x = -1 \pm \sqrt{3}[/math] is a root of [math]x^3 = 8[/math] (you can test the negative one yourself. Sorry if you knew this, I mainly did it just to get used to this LaTeX thing.
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Apples no longer exist in that scenario, a new object does and they just so happen to be half apples (don't argue that I say half, I say that for convention, call them bananas if you will). Now you have one (1) banana each making a total of two (2) bananas, both of which are natural numbers.
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I am making a more profound stantment than root 2 not being a real number. I am saying that 0.5 is not a real number. What is distance? It is a concept, it exists, but not as a number. We assign a "number" to it so we can make sense of it. We can say that we can have one of a particular item. But to say we have half of a particular item is not a number. It is a concept of a number, notice that half of one is: (1/2)*1 ... half of one. It is a concept of a number. Not a number of a number. But I am getting into philosophy, is that the kind of discussion you were after?
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I heard that an isotope of element 114 would be stable, I can't recall which but it has not been proven. Are any other trans-uranium elements stable? Tc and Pm are supposedly unstable, does this mean they do not appear in nature? If so why do we say there are 92 naturally occuring elements? Also, how do you define naturally occuring, given time life will evolve from organic molecules until inelligence creates trans-uranium elements like we have done, if that all happens naturally, cant we say that they too are naturally occuring? I have many questions on my mind today...