Physics

i know it is not possible but theoretically speaking if I put my hang in the Large Hardon Collider and the two particles wizz around and smashed into my hand what would happen? would my hang just explode? would there be a big hole in my hand? or is the collision so small it wont effect my hand at all?

Imagine if there were a very strong string, so long that it extends from the Earth to the Sun, and so strong that pulling it would not cause any change in tension. Light would require a minute to get from Earth to the Sun, but pulling the string would signal the other end instantly! Possible?

Please help me understand the Heisenberg uncertainty principle of quantum mechanics. The principle says that you can't accurately measure both the position and velocity of a particle and the more you know one of them the less you can know the other. But this doesn't make sense to me. Isn't position always relative to the eyes of the observer anyway? Or what does quantum mechanics really mean by position? I have to admit that quantum mechanics is really hard because I'm not very mathematically capable.

Can you please help me with this. Can you read this paper and tell me what you think about it? maybe some criticisms? thank you! Link:https://stuiterproxy.kuleuven.be/doi/full/10.1021/,DanaInfo=pubs.acs.org+ct100579w

The second law of thermodynamics expresses that things tends to go from order to disorder as time progresses. Yet, the evolutionist says that this law must be violated billions of time. On this discussion topic I would like to know (and would like to discuss) 1) What is the reason for disorder (or increase in entropy) according to second law of thermodynamics? 2) How can we apply this second law of thermodynamics to the evolution and cyclic universes? 3) What is the reason for not converting, potential energy into 100% kinetic energy in internal combustion engine?

What is the true cause of inertia, the tendency of some objects to resist any change to their state of motion or rest? What are the current theories on this?

Friend asked me if there are 2 racing cars, one racing car has a centre of gravity of 2 feet and other 1 feet, which is more stable? I have learned physics long time ago, but i can not recall learning about this. Can any of you explain the answer to me simply and tell me which area of physics I have to read. Thanks

In 340 b.c., Greek philosopher Heraclides proposed, that our planet spins. The idea was dismissed for nearly 2,000 years, on the grounds, that "If Earth rotated [then] a person jumping up would land in a different spot" (Astronomy 2010). Two millennia were lost, to ridicule, being allowed to trump sound-and-sane science (cp. 'delay is death' -- Czar Peter I). The concept of "relative motion" could easily have been demonstrated, cp. Hypatia, head of the Library of Alexandria, in the docu-drama Agora.

I tried to prove that distance of image is same as the distance of object in a plane mirror. The image attached is the ray diagram. First of all, I have assumed object and image to be parallel to mirror. First I proved angle TSA = angle TSa Then I have made similar triangle TSA and triangle TSa with AA similarity. ( where angle ATS = angle aTS ----each 90) Therefore, TS/TS = TA/Ta => TA=Ta ( TS/TS = 1 ) => AS=aS ( corresponding parts of similar triangle are equal in ratio) Using this, I have made triangle ABS and abs congruent. where, As=aS angle ASB = angle aSB angle ABS = angle aBS => AB=aB ( corresponding parts of congruent triangl…

So lets say that a person is going closer and closer to the speed of light. Chemical reaction are based upon electrons, and they revolve around the nucleus of an atom. The closer the person is going to the speed of light electrons are going slower relative to the nucleus because electrons cannot go faster than light. And when the person is going the speed of light electrons cannot move in the same direction of motion so the cannot revolve around the nucleus effecting the rate of chemical reactions. And when said person is nearing a single black hole electrons cannot move the speed of light relative to the nucleus in direction opposite of gravitational effect changing …

Why is it that light bends towards normal when it enters a denser medium from a rarer medium?

A simplistic knowledge collection that is perfect for the layman. Math Math Pages Edward Frenkel - Multivariable Calculus Lectures Spark Notes Math John Baez's Stuff Mathematics Audio/Video courses Video Calculus Kahn Academy Karl's Calculus Tutor Physics PHYSICS: The Law List MIT Open Courseware MIT Open Course ware- Walter Lewin (Love Him) Scott A. Hughes Lecture Notes Hyperphysics Cornell University Library Freelance Teacher Open Yale Courses-Fundamentals of Physics Foundations of Modern Physics-Susskin Relativity Modern Relativity Reflections on Relativity Usenet Relativity F&Q Links Edwin F. Taylor – Downloads The Gener…

The fact people don't find something specific funny does not mean they lack a sense of humor. I seem to have missed this point, so let me answer it now: It's not about my goals, it's about the forum's goals. I have no problem with you using whatever tool you want for your "craft", as I explicitly said multiple times in previous posts. There are other forums out there that wouldn't mind you using whatever tool you want against or for whatever person or poster you feel like. I don't argue for the destruction of those forums. They serve their purpose. The problem is that the particular forum you choose to participate in at this very moment has different goa…

Hi guys, I've been thinking about this for a while, and can't find any answers. It's probably something simple and I'm over thinking it. My question is this: Say you have a very long stick, that stretched out from your hand to just left of the Sun. The stick is unbreakable and completely straight. You also have unlimited strength. You can also see the stick perfectly. If you were then to drive the stick into the sun, from the side, and the stick was able to destroy the sun (I know this sounds childish and crazy) What would you see immediately? At this point the stick has already destroyed the sun, but it takes around 8 minutes for that light to reach ea…

Ultrasound lasers (sasers?) work because the frequency is high enough to keep sound from spreading out much. I was wondering what would happen if two sasers were pointed at the same spot on a rough but non-absorbing surface? Could the interference patterns of two ultrasonic waves create audible sound from a distance?

With most perpetual motion ideas its immediately obvious why it won't work (beyond the fact that it would violate the laws of thermo dynamics). Energy lost to friction for example. . I know that I'm missing something here, but I don't know what. I was reading about mri machines and was intrigued to see that they use super conducting magnets and once the coil is magnatised a super conducting bridge is dropped down and the coil remains magnatised by the perpetually circulating current. Now, imagine two such magnets with the current being shifted between the two coils, via super conducting wire. Surely, then you could have an alternating magnetic field that…

Hi,all can any one suggest me some nice books on physics actly i jus started reading..i m currently reading Feynman lecture on physics book(vol1)...i knw graduate level maths and i want to understand everything from beginning...Thanks in advance

Brownian motion requires relatively large 'walker', which is constantly being pushed in random directions (no memory) - it's derived as infinitesimal limit of Generic Random Walk (GRW) on a graph(lattice), in which each outgoing edge is equally probable. But let's imagine we want to estimate probability density of positions of some entity which doesn't just constantly 'stop and make new independent decision', but make some concrete trajectory, which for example could depend on the past (by e.g. velocity) - in such situations the safer than taking statistical ensemble among single edges as in GRW/Brownian motion, should be using statistical ensemble among whole possible p…

Some people say universe originated from nothing, some reject this. Is there any consensus about it. Or till no consensus?

suppose we have a gas that becomes completely ionized at room temperature, only energy in atmospheric gases are enough to convert it into plasma, since plasma loses energy by radiation to the surroundings, we could harness the generated electromagnetic energy violating the second law of thermodynamics.

I've been watching a lot of pelicans fly lately and I observe how they barely flap their wings as opposed to other birds flying around the area. Then, between beers, I thought of some kind of helium suit with flexiible wings. The wings, just like birds, would be made of a hollow ultra light metal skeleton. The suit itself would also have various compartments pumped with helium, kind of like how soldiers have pockets all over to distribute the weight. Does anyone think that with something of this type and jumping off a plain it would be possible to just fly around and chillax kind of how pelicans do.

Hello scienceforums.net, This is my first time posting on this website, for I have only discovered it today. I am 16 years old, and I wish to teach myself Physics and understand the basic principles, along with more complex theories and such in the near future. Due to the fact that my school doesn't teach Physics until senior year, and that I want to be ahead of the game because I'm genuinely fascinated by science, I've ordered a "Holt Physics" textbook. I plan on reading and studying out of it, but because I'm completely new to studying Physics, I don't know which actual topics will be paramount to learn if I wish to delve into the deeper areas of Physics such as Quant…

http://www.forbes.co...rave-new-world/ "Over on Network World where I've had a gig as a columnist for about 18 years, my Backspin column I wrote this week about a power generation system called E-Cat that is to be tested on October 28th. If you've missed the recent brouhaha over the E-Cat (which stands for Energy Catalyzer), you're missing out on a three ring circus over a technology that will either change everything or change nothing because what is promised is, in theory, power too cheap to be worth metering. The E-Cat is a simple device albeit with functioning that defies all known explanations. In summary, the E-Cat is a cold fusion (CF) device (the i…

Okay, recently, I've wondered how many choices on can make. So I did some research. If there was a total of 50,000 different things you could do (regardless of how long they take to perform) instantly (in this case per millisecond) You could perform 50,000^50,000 different choices per second if reality updated every millisecond. Or just to give you a basic hint of how many different choices. 93132257461547851562500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000…

Hello, My name is David Malcum, but my friends call me TJ. I am a time traveler from the year 2167. I was sent by the Temporal Historical Society. If you have any questions for me about me, or the future I would be happy to answer them, including science and technology. I have almost nothing to hide.