query stringlengths 15 149 | positive sequencelengths 1 262 | negative sequencelengths 54 98 | cluster int64 0 599 |
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Magnetic field resistance material: are there any? | [
"Shielding magnetic field without mu-metal\nI need to shield my device from magnetic interference, including earth magnetic field (if you move device around, it might be enough to cause slight currents i guess) and magnetic field caused by power nets, wires with large currents e.t.c . I know this could be achieved ... | [
"Can an inhomogeneous magnetic field be built to slow down and catch a neutron? Neutrons have a measureable magnetic dipole momentum from their intrinsic spin. Is it possible to slow down and catch the neutron by imposing a force by an inhomogeneous magnetic field. I think the force the neutron experiences in a mag... | 187 |
Why is gravitation force always attractive? | [
"Repulsive gravity\nIANAP, so feel free to berate me for thinking apocryphal thoughts! Just as magnetism has two charges, in which particles of like-charge repulse and particles of dissimilar charge attract, might gravity have two charges in which particles of like-charge attract and particles of dissimilar charge ... | [
"Is Galilei's reasoning on free fall valid? Galileo Galilei discovered by experiments that all bodies tend to fall with the same rapidity (I use it in an intuitive sense, you can replace it by 'acceleration' used in today's physics language), independently of their weight. He also provided the following rationale, ... | 112 |
What actually is meant by wave nature of electron or any other material particles? | ["Electrons - What is Waving?\nIf an electron is a wave, what is waving? So many answers on the inte(...TRUNCATED) | ["Wave/particle duality Apologies if this has been asked before (I did check and I believe it wasn't(...TRUNCATED) | 48 |
de Broglie relations: calculate wavelength using two different approaches | ["$\\lambda=\\frac{2h}{p}$?\nI am studying quantum physics and there is something I don't understand(...TRUNCATED) | ["What is the fringe separation in Young's double slit experiment? In the double slit experiment, a (...TRUNCATED) | 76 |
Why is the earth shaped like a sphere and not any other shape: cube, prism? | ["Why are most astronomy things spherical in the shape (like, the Sun, the Moon, the Earth, and othe(...TRUNCATED) | ["What is the scientific reason for the inclination of earth's rotation axis? This titled position o(...TRUNCATED) | 238 |
Why don't spinning tops fall over? | ["Perfectly vertical spinning top\nConsider a non-spinning top. If a top is perfectly vertical, and (...TRUNCATED) | ["why does what get pushed away when centripetal acceleration is towards the center If centripetal a(...TRUNCATED) | 77 |
"Does the scientific community consider the Loschmidt paradox resolved? If so what is the resolution(...TRUNCATED) | ["Loschmidt's paradox - really a paradox?\nIs Loschmidt's paradox a paradox even today? In other wor(...TRUNCATED) | ["Without multi-level modeling, how to handle within-study replication in a meta-analysis, where the(...TRUNCATED) | 296 |
Why does it seem like a broken magnet's poles flip? | ["Repulsion of the pieces of a broken magnet\n> **Possible Duplicate:** > Why does it seem like (...TRUNCATED) | ["Magnetic moment precession around magnetic field I have a question regarding the magnetic moment o(...TRUNCATED) | 77 |
Will an object resting on a rotating platform move in a frictionless world? | ["Dynamics of circular motion\nIf there is a disc rotating about its centre, let the surface be fric(...TRUNCATED) | ["Rotational behavior of objects in zero-g with forces I would like to know how this object would ro(...TRUNCATED) | 548 |
Is spacetime simply connected? | ["Symmetrical twin paradox\nTake the following gedankenexperiment in which two astronauts meet each (...TRUNCATED) | ["Non-stationary spacetime What is an example for a spacetime that is non-stationary that is conside(...TRUNCATED) | 567 |
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