Modern and Theoretical Physics

Does anyone in here know any articles related to biophysics of bacteriophages?

If anything comes closest to complete wierdness in physics, it would have to be modifications of this classic experiment. I'll give a little backround on the experiment before I continue. In the early 1800's, the debate was raging on whether light was a particle or a wave. An English physicist named Thomas Young devised a plan to test these theories. Today we call it the "Double Slit Experiment". Thomas young thought that if light was a particle, it would travel in a straight line from the source, through the two slits, and form two stripes on a photosensitive screen behind the slits. However, if light was a wave, it would travel through the slits and cre…

I was reading that a 'vacuum' is infact full of negative energy electrons, i.e. electrons that aparantly only interact with photons to create themselves and a positron; as to the dirac exclusion principle. I was curious that inside a black hole (in the area inside the schwarzchild radius) whether these 'virtual particles' exist? If they are 'virtual' (and therefore in a stable state do not exist) they would not be affected gravity, unless they are made real by a photon.

Hi all! I'm just working on a concept, and i need to know something - is it possible to excite nitrogen atoms in the air by use of a laser (or a pair of lasers) at a specific frequency, so that the atom emits the excess energy in the form of visible light of predefined color? And if so, what direction is that light emitted in or is that random? Thanks!

So the expansion is speeding up. Could the creation of new universes be the driving force. If all universes are entangled but not touching the creation of new spacetime between universes would require more space.

I had a theory that if we could force space out of matter we may be able to travel at light speed without the constraints of inertia. I believe this has been proposed by physicists some where. Does any one have any information on research into this subject. I would also like to know of theorys on space controling position,time and movement of matter throught inertia.

After nearly 30 years of arguing that a black hole destroys everything that falls into it, Stephen Hawking is saying he was wrong. It seems that black holes may after all allow information within them to escape. Hawking will present his latest finding at a conference in Ireland next week. The about-turn might cost Hawking, a physicist at the University of Cambridge, an encyclopaedia because of a bet he made in 1997. More importantly, it might solve one of the long-standing puzzles in modern physics, known as the black hole information paradox. It was Hawking's own work that created the paradox. In 1976, he calculated that once a black hole forms, it starts losing …

Plane mirror gives the laterally inverted image. I wonder , if we can make the mirror which can form the non-laterally inverted image, dorso-ventrally inverted image, anterior-posterior inverted image ,etc. Any ideas??

Well, i am not sure whether this topic is placed in the right place. But, i just can't think of another better place to put this. OK, what about gravitational waves. I read an article about it but hardly understood it. Ok, so you views and ideas about gravatational waves. What do ya think?

Is it possible to redshift light? For example, can you take ultraviolet radiation and, using a lens or some other contraption, shift it into the visible spectrum? I don't mean interpret it as visible light, I mean physically change it into visible light.

Hello All, perhaps you could assist me with this puzzle... If I release 1 cubic meter of an air bubble under sea level within the water, what would be the maximum depth that would yeald an elevation force (what is the critical statics point of the bubble), and how would I culculate its elevation force Thank's Ram

Hello, I am just theorizing here but can light be made solid??? What if you excite the photons enough so that they displace the air around them. Would that make the light solid or coherent???? Pomlom

I was wondering what is negative and what is positive in terms of properties of charge, what makes an electron negative.. its it the orientation/spin of the particles that make up an electron? Is it due to the arrangement of Quarks that givees it these properties.... How do these arise, like ...what gives Quarks these properties... i dont mind if the explaination contains hefty QM, or complex workings but i need to know please Cheers in advance

When I was a kid, I joined my parents on holiday to Spain. They had rented a cabin on a hill slope that gave a 90 degree view of (mostly) the Mediterranean Sea. One day there was a heavy storm, with thunder and lightning. The strange thing that I remember some 25 years later, is that the lightning would start to strike in the East, "into the Sea", and then what seemed to be (it went very quicky, obviously!) the exact same jolt of lightning would strike a couple of degrees counter-clockwise to the first jolt. This would repeat itself until the jolts reached the far end of the aforemention 90 degree view we had. However, all this seems very unlikely to me now, an…

Hello, I know that matter can be turned into energy(E=+/-mc^2). Can the opposite be true too??? Energy into matter??? Pomlom

Hi, Is there anyone here who understands any of the approaches to QG?

http://www.mkaku.org/hyper.html very interesting article i wanted to share.

Disappearance of Black Hole Singularity in Quantum Gravity Authors: Leonardo Modesto Comments: 8 pages "We apply techniques recently introduced in quantum cosmology to the Schwarzschild metric inside the horizon and near the black hole singularity at r = 0. In particular, we use the quantization introduced by Husain and Winkler, which is suggested by Loop Quantum Gravity and is based on an alternative to the Schrodinger representation introduced by Halvorson. Using this quantization procedure, we show that the black hole singularity disappears and spacetime can be dynamically extended beyond the classical singularity." http://arxiv.org/gr-qc/0407097 A singul…

From Bill Bryson in his book A Short History of Nearly Everything "Today the particle count is well over 150, with a further 100 or so suspected, but unfortunately, in the words of Richard Feynman, 'it is very difficult to understand the relationships of all these particles, and what nature wants them for, or what the connections are from one to another.'" To my understanding, these 150-250 particles are the real building blocks of our universe. Without considering string theory, these particles--as far as we can tell--cannot be broken down into smaller particles (correct?). So what does all this mean? At first we thought there was only protons, neutrons, and ele…

i heard that einstein's brain was used upto 16/17 %. and normal peoplr use less than 1% of their brain. is this true ? how is the brain usage measured?

the flap over Leonard Susskind's responses to a paper by Smolin challenging the Anthropic notion is really too good to miss see the latest at Peter Woit's blog http://www.math.columbia.edu/~woit/blog/ the 17 comments to this article ("More Landscape Looniness") are worth looking over too

Im trying to self educate myself for now, and ive been using some library books and a website called wikipedia, which is a great site. Does anyone know any other good sites for educational purposes. Maybe starting from high school and up though college and so on.

Please enter in Google: 'Gene Mallove: Science Censorship is Invisible Evil'. (Dear JaKari: All I know now and all I knew yesterday is that I (thought) I entered my statements and questions about cold fusion in: "FORUM: Suggestions/Comments Forum." Don't know if this one will get through either. Not blaming anyone, but I really don't understand basic things that computer seasoned internet people take for granted. Doing the best I can. I wish to initiate a discussion among contributors who know more than I of this crucially important subject, and/or those who may find and contribute other relevant informations from variou…

Well, can we?

I got this t-shirt for my birthday that says: TIME IS AN INVENTION I get people asking me what this means, so what do you think? How should I respond to their inquiry?