Modern and Theoretical Physics

I noticed that a website selling superconductors had a max force of 80N for a coin size superconductor. I have once visited a superconducter lab and was told the max force of their coin size made-in-lab superconductors were 10mN. Who is right?

I need research for high school exam. we need to research the following: -electricity and its effects on humans and environment -electrocution and other stuff relating to that, i forget the other stuff but its all similar to that. Anyone know of any good websites for this? thanks. ps. its gotta be simple not too simple but not too heavy - yr 12 high school 18 yr old stuff. thhhaaaanks

Like the title said, in January 2005 there was much talk of using Carbon nanotubes to replace LCD screens. It'd provide a better quality as well as less power consumption. See the Jan05 full article here: http://news.zdnet.com/2100-9596_22-5512225.html?tag=st.prev Since then the only article I can find on carbon TVs would be here: http://www.newscientist.com/channel/mech-tech/mg18625006.800 Which mentions the prototype 10cm flat screen nanotube screen. It again mentions low power consumption and says it'd cost little to produce.

I've just been told of a book called "final theory" by Marl McCutcheon. Has anybody heard of or read this book. Does the book stand up. http://www.thefinaltheory.com

hey, I've been playing with plasma in my microwave and just wondering if anybody new any tricks that can be done with it. or anyplace to look for the mathmatics of the electromagnetic field associated with the microwave

Hello, I need some help here. I am looking for a formula for for Magnetic Field strength in meters Vs Current in Amps because most formulae are referring to Tesla rather than distance in meters. thx

what frequency of microwaves would be best absorbed in hydrogen? Any textbook with more information like this would also be apreciated also does this change with different isotopes of hydrogen?

hey i jus have a quick question and idk if its ben asked...ok say im standing ontop of a train and its moving foward at 60 mph and i have a baseball which i through 60 mph in the same direction as the train is moving....how fast will the ball be travling? thanks

What is latent heat and how is it different from specific heat?

I observed an experiment the other day where a magnet was immersed in liquid nitrogen and placed in a petri dish. Next, a small ball-bearing was placed in the petri dish just above the magnet and I was rather intrigued as it floated a few millimeters above the magnet. i wanted to know the theory behind this, in other words, why does this happen? My theory so far (this is only a guess) is that liquid nitrogen distorts the magnetic field so that it pushed the ball bearing upward instead of attracting it. Is this right?

Thanks?

What are parallel universes? Do we think they exist, or is there more proof? What is the current theory on how they form? Do we think they exist at all?

we have a circle: [math](x-h)^2+(y-k)^2=r^2[/math] where (h,k) is the center and r is the radius. we now spin the circle about an axis that is perpendicular to the plane on which the circle lies and it runs through the center of said circle. gravity contracts length (and my the equivelance principle, so does acceleration), so as the 1-sphere spins about the axis, the distance between any two points on it decreases while the radius stays the same. since [math]\pi=\frac{c}{2r}[/math], where c is circumference and r is radius, [math]\pi[/math] no longer is a constant. the circle shrinks, but the radius stays the same. this change in geometry may affect how a string vibr…

I've been doing some reading on chaos theory and i was wondering about what people think of it... I got some crazy ideas and theories of my own in case anyone wants to discuss... In fact I believe that the universe itself is a fractal... i.e. it is self similar to every single thing in it, our perception of these things being different being caused only by the fact that matter is spread at different points in the fractal. This idea wound in fact work with the String Theory, which i guess is kinda cool ... Well... if anyone got ideas about the chaos theory and would like to discuss let me know.

as i recall, it is the occilation period of the string that determines wether it is a mass particle or a messenger particle (i think). would the spinning of a messenger string give it different property?

I have been working on an idea i had for a new type of rocket engine that works in the atmousphere that would most likely be a jetpack rocket engine. It takes in air and seperates it into individual atoms then rebonds them to form a combustible compound. You would take in the air change it into the new substence and compress it, than you would be able tom create thrust. I am not sure how everything will work but please comment back about this propulsion system.

Gravity Has To Be A Push And A Pull -------------------------------------------------------------------------------- Gravity-the natural force of attraction exerted by a celestial body, such as Earth, upon objects at or near its surface, tending to draw them toward the center of the body. Buoyancy-The upward force that a fluid exerts on an object less dense than itself. Bouyancy and gravity are the opposite of each other, while bouyancy explains the rising of gas, and gravity explains the falling of more dense matter. SO, they are directly correlated in the sence that both are to explain the movement of matter about celestial bodies. These are…

Dear Folks Check out this heat source, I sent it to all the guys on my list that are into plasma physics, I can't wait for their replies: Hydrogen result causes controversy (August 2005) - News - PhysicsWeb http://physicsweb.org/articles/news/9/8/4 and this: From: http://www.blacklightpower.com/Press_Release.html RESEARCHER UNVEILS UNIQUE NEW CLASS OF HYDRIDE COMPOUNDS Discoveries Point to New Source of Low Cost Energy, Longer-Life Batteries, Magnetic Polymers, Lighter-Weight Materials; All Based on BlackLight Power’s Application of Dr. Randell Mills’ "Grand Unified Atomic Theory" ONTARIO, Calif. – Oct. 6, 1999 – Dr. Randell Mills, CEO and ch…

If there are two objects, one is charged while the other is neutral. How does the surface area affect the rate of sharing of charge when they are put in contact? With the empirical one, not sure whether the experiment is perfectly carried out, I could notice my classmate touches the Van der Graff's generator with a finger feels more painful than those touches it with a hand.

I have a question, if a nuclear bomb say 100 megaton went off over the ocean, first off would it be too hot to cause a tsunami and secondly would the shockwave be strong enough to push a cloud of Methane but not catch it on fire?

I did not want to continue with this discussion in YT's thread, so I started a new one...

Can summarize to me briefly on this theory of paralelle universes? I am just intersted in the implications of the theory. Please do not go too much into details.

yes everyone life is good I am looking for a group of scientist to jump more in depth in the unification of everything. And yes it is real it is not fake. apparantly we live in an expanding oscillating universe, I still need to patent my work that explains this which should be in a couple of month or so, so everyone stay posted on the site because my book should be coming out soon. i have attached a few pictures from my book. oh yeah and the wave particle duality is no big mistery what is everyone talking about

Dear Folks: What is your opinion on the viability of this radical technology proposed by Charles M. Brown. They talk that the costs of a Kilowatt chip may be a dollar and last a million hours ( 113 years ). : " I have invented, patented1, and tested2 a chip containing very many very small diodes that absorbs uniform ambient heat and releases D.C. Electrical power. This is a superior energy source that is very inexpensive and will power small appliances out of the box without a need for power wiring anywhere in the world. This has great potential to improve the prosperity of mankind. The chip will quickly become an open source commodity. Many applicat…

Hi I have recently just read that when a star or planet(of a certain size) it becomes a singularity, which then addmits light rays which curve around the singularity. Now this intill the singularity reaches infinite density is this another way of putting a black hole or is it just a link or rubbish. thanks