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Found 59 results

1. ## Giant Space Javelin

If a giant needle-shaped mass of tungsten carbide (9540km in length, 3567km in width, moving at 99% of light speed) collided with earth, pointy end first, at the north pole, precisely what would happen to the earth, both geologically, meteorologically, and ecologically? Additionally, how would the results differ if the object collided at, say, the south pole, or the peak of the mid-Atlantic ridge?
2. ## Is Faraday's Law Of Induction True?

No, Faraday’s law of induction is not true. One of the fundamental laws of electromagnetism is the “Faraday's law of induction”. This law states that the induced voltage in a wire loop is equal to the speed of change of the magnetic flux enclosed with the loop, or V=dΦ/dt. In the textbooks is often given an example of a loop in the shape of a rectangle which rotates in a magnetic field. (please click on the images for a bigger view) What is meant by “the speed of change of the magnetic flux enclosed with the loop”? To explain this, we will make a comparison. If we hold a ring in front of our
3. ## Is The Designation "positive" And "negative" In Electricity Arbitrary?

No, it cannot be arbitrary at all. (in this answer I will use the words “plus” and “minus” instead of “positive” and “negative”) “Plus” is the effect towards outside (expansion, blowing, explosion), “Minus” is the effect towards inside (contraction, suctioning, implosion). For example, the act of inhaling is plus, because our chest expands; the act of exhaling is minus, because it reduces in size. From the history of electromagnetism it is known that Benjamin Franklin (1705-1790) is the man who was the first to introduce the terms “positive” and “negative”, i.e. “plus/minus” in the field o
4. ## Collecting Evidence Negating All Of Einstein's Hypothesies.

This is the topic that is outside the bounds of standard science: it contains interesting and supported views based on Rational analysis and requires the use of deductive Logic. No wishy washy Math is required. Anyone is invited to add to this collection, its already quite big, but I've not posted what I've found so far. Relativists will have nothing new to contribute, their position is well understood, but rejected on the grounds that its all irrational nonsense.
5. ## What Is Electric Current?

Electric current is an immaterial swirling wind through the electrical conductor. The immaterial magnetic wind through it is also spiral-shaped (i.e., it is not perpendicular to the conductor as the contemporary physics asserts). During the flow of direct current, both winds blow from the plus- to the minus-pole of the battery, the electric wind in counter-clockwise direction, whereas the magnetic wind in clockwise direction. These two fluxes are at angle of 90 degrees. I will introduce a new explanation of the electric current which I call “dynamic” because it speaks of forces (δύναμις = forc
6. ## Bernoulli's Principle Can Be Found In The Electric Current, Too

When a body moves through space filled with air, then higher pressure is created in front of it, while lower pressure (depressure) behind it. The higher pressure is PLUS, the lower pressure is MINUS. I use to call this a ‘principle of an arrow’ (− >—> +) (click on the images for a bigger view). The greater the velocity of the body is, the stronger is the plus in front of it as well as the minus behind it. This principle can be found in many things, among others also in the so-called “Bernoulli’s principle”. What is “Bernoulli’s principle” in its basic form? The picture below shows it.
7. ## Looking To Recruit Science-Minded Game & Software Developers, Graphic Artists, Etc.

Hi everyone, I'm looking to recruit fellow science-minded people to help with a labor of love I just started. I love fantasy and sci-fi and I just recently started playing tabletop RPGs again. My go-to RPGs from the past were DnD (of course), Rolemaster, MERPS, GURPS, Vampire the Masquerade, etc. I just started playing DnD 5e and like it a lot but certain things have reminded me of why I have always wanted to just create my own system... SO... I am. I'm also creating the setting and a virtual tabletop platform because I want the mechanics to be more detailed and realistic but not time consumin
8. ## A Challenge For The Brave And The Wise

Hi, I'm new to this forum and I might have a challenge for you, if you respond to what I'm looking for. I'm scouting around the internet to find the brightest professors, PhD level students and overall esperts of physics to form a group. This group will be formed with the aim of, brace yourself, solve the millinium problem connected to the yang mills theory and mass gap. Please, if you are interested contact me, and we will have a little chat to see if you are what this group is looking for. I'm not sure we are going to make it, but I can promise that I'm going to give everything I have to see
9. ## Think Of A Body Which Is At Rest But Not In Equilibrium. Give Explanation As Well As Figure/diagram.

When a ball is thrown upward it becomes at rest at maximum height, at this it is not in equilibrium although it is at rest. It is not at equilibrium because force of gravity is acting on it? Still I cannot find good explanation from exam point of view.I also cannot find the figure/diagram.
10. ## What Is The Meaning Behind Multiplication In Physics?

What is the meaning behind multiplication in physics? Is multiplication in physics purely mathematical or there is a physical explanation to it? How do we explain the product for example, s=v.t? Is there any meaning behind this? For example, I can say that "Distance is defined as the product of velocity 'times' time"? But what does this even mean?
11. ## Is There A Method/theory To Determine Everything In The Universe Except For Mathematics?

Everything relies on mathematics . From your descion making/emotions ( complex chemical reaction in your brain) to black holes. Everything can be calculated/predicted. Although we don't have the technology to do such complex problems, we will have it in a distant future. Mathematics forms the basis of everything. Like maths, which is a fundamental explanation to everything ( for now), is there anything other than it that can form a base to explain everything in universe and is it possible to make some theory like it? Is there anything that doesn't depend on mathematics ? University students/
12. ## Gravity And Energy Distribution In Relative Motion

Hello! I would like to present you the only correct model of gravity and energy distribution in relative motion. I've spent around 6 weeks and wasted some 8 pages format a5 on calculations, while looking for the right formula - it took me so long, because I did such things for the first time in some 20 years or so and also, this was that part of physics, which as far as I remeber, I've always hated at most... I wonder, what then can explain all those generations of professional physicsts, who didn't even think about trying to calculate such things... If you really want to show me, that theoret
13. ## Fluid Science For School Project

Hello, I've been struggling with a school project for some time now. I need to find out the speed at wich a tank is draining to make a model out of it (in simulink). The model will show a x-t graph, x being the height of the water in the tank. The flow is laminar, but the lenght of the exittube is significant enough to enduce friciton. A basic model that i made can already account for the diameter of the exittube, but not yet for it's lenght (and thus friction). When i tried implementing formulas for head loss the model didn't work as i had hoped. I think i might be using the wrong (combinat
14. ## I Need Help Clearing For B On An Equation

Consider the movement of the mass and spring with friction A * [e ^ - (b / 2m) t] * cos (sqrt (k / m - (b / 2m) ^ 2)) t + φ) With A = 2m, k = 3N / m, m = 5Kg and φ = 0, we could change to the value of "b" from zero until the oscillations disappear for the first time and the function does not change to negative values. In this case, the friction now has a very noticeable effect: it lengthens the period of the oscillation so much that no oscillations will be seen (T -> infinity). The theory indicates when that should happen. Clear for b from the equation and record the predicted value for
15. ## Is Electric Current Induced In A Wire When It Is Moving Perpendicularly To The Magnetic Lines Of Force Or When It Is Moving In Line With Them?

One of the consequences which is derived from the Faraday’s law of induction is the following: when a metal wire is moving in a magnetic field, then the component of the wire’s velocity which is perpendicular to the magnetic lines of force should be the cause for the induced current in it. Since the Faraday’s law of induction is not true (please see http://www.scienceforums.com/topic/36405-is-faradays-law-of-induction-true/), this consequence is also untrue. The actual cause for the current in the wire is the component of its velocity which is in line with the magnetic lines of force. Consider
16. ## The Forth Dimension

As we all know from chemistry, as the temperature decreases, the volume of a gas decreases. But what if not only gases ? I consider the Temperature as being the 4th dimension, because it affects space as well as time. The more you get near 0 K (Kelvin), the slower your time. at 0 K, in my theory, you would be frozen in time, literally and figuratively. i backed it up with some formulas if anyone is interested let me know!
17. ## Pressure Waves. What's Going On?

We can make a slow moving wave in a water filled wave tank by moving a plate with a hydraulic ram. If we tap the plate with a hammer we will produce a sound wave that moves through the water at the sonic speed for that mediums' temperature and pressure. What is the difference between these two waves? At what point in dynamics does the movement of the plate start making sound? I guess that if the movement of the plate is greater than the speed of sound then the maximum speed of the emitted wave is reached - limited by Brownian motion (temperature and pressure). Gases don't seem to behave in the
18. ## Acceleration At Constant Speed? Centrifugal Force?

﻿ ﻿ ﻿ We often hear the term "centrifugal force" used commonly in everyday life. I think this is not correct. Are we not really meaning centripetal reaction? It is also said that objects moving at constant speed in a circle are accelerating towards the centre of the circle. This does not seem right to me. The spinning or turning driver (say a motor) is the force and the outward effect is the reaction - me thinks. It is said that when an object is moving in a circle at a constant speed, its velocity is constantly changing (being a vector) and that it is accelerating. This is called centrip
19. ## Torque

I wanted to explain torque in the form of fundamental force I predict that it must be derived from the inverse squared laws of force because of the fact that earth around the sun is acted upon by the torque. So, I imagine a rod suspended at one end. And in free space I apply force at its free end perpendicular to its alignment . What I see is that the as the distance from the another ends increases the the molecules at the free end path tend to be in straight line . So I think that the force acted upon there produces small but easy change in the alignment of the whole rod Similarly if
20. ## Why Normal Universe Seems To Be Weird?

How the simple interaction turns out to be mysterious I just want some discussions the weirdness of the universe when its normal. I was wondering that there must be a way the universe can interact with itself before the information is travels and is stored. If someone cuts apple in moon, I can get that information in d/t time . But the result doesnt change the process doesn't change. In a sense that the universe knows that the apple is there. I know the apple is there. I this sense I am able to interact with everything in the universe. For this to happen I think I must consider the univer
21. ## Why Should There Be An Aether Wind? Mm Exp.

Can the Michelson Morley experiment be considered as proof that there is no cosmic aether? The experiment gave a null result. But it seems that it had a disproportionately negative effect on the concept of an aether. It seems to me that quite pre-determined assumptions were made as to how an aether behaves around a planet - like a flowing gas in a compressive atmosphere. How can we say that a cosmic aether would behave in a certain way and then declare it's non existence because certain expectations were not observed? There is a lot of space within an atom, what if the aether passes throug
22. ## Wave Curvatures As The Strong Force And Related To Gravitation & Time Dilatiion

Hello, I have constructed another theory and stems from Einsteins curvature ideas. But instead of gravitation it is the strong force. Like a super gravitation. Also I attempted to define a quantum gravitation that works off of the same mechanism. And I have described the fine-structure using the theory's equations which might suggest how the elementary charge and mass of the wavelength are connected. I believe these equations may unify the forces. Here is the pdf file: Removed file. Thanks, Devin
23. ## Switching From Biology To Physics

Hi, I recently completed my Bachelors in Biomedical Science at Monash University with the intention of going into research, specifically cancer research and aging. I liked all the sciences but my passion was originally directed towards mathematics and physics where I used to enjoy reading scientific literature related to these fields from a relatively young age. They were also my strongest subjects in high school with biology and chemistry came in 2nd. However, I ended up taking Biomedical Science because I felt the research would be more geared and relevant in reality than the fields I was
24. ## M.s. In Pure Science - Career

I am pursuing M.SC. in Physics and I am studying in IITs as I cracked Joint Admission Test for Physics. I wanted to know if US or Germany have some research based projects in Pure science. What are some good future research topics and career options for me. My field of interest is optics.
25. ## Movement Equation Of A Particle In A Non Inertial System (Polar Coordinates)

Problem: A particle of a mass $m$ is embedded in a circular rail, (radius: $R$), without any friction. In a given moment, the particle finds itselfs without velocity at point C, and a force is applied on the rail, which starts moving with an $\vec A$ constant acceleration. Use a non-inertial system fixed to the rail to solve the problem. Arrange the Newton's equations, and find the movement equation of the particle. (It was originally in spanish that's why I only screenshoted the graph) My attempt at a solution: $\vec F_v = bending force$ So
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