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Oct
17
comment Over what distances can one send/ receive from a GPS chip implant in a dog?
@ Vineet Menon - Whilst a GPS device can locate itself anywhere in the world, the device cannot necessarily be located by a third party unless it actually transmits its position by radio or over a communication network, which will necessarily have variable range and coverage. GPS devices only calculate their position via the GPS satellites, they don't transmit to them.
Oct
11
revised How to get distance when acceleration is not constant?
update
Oct
11
revised How to get distance when acceleration is not constant?
note about period of applicability of jerk
Oct
11
answered How to get distance when acceleration is not constant?
Oct
11
accepted The Born-Oppenheimer approximation and muonic molecules
Oct
11
revised How does one calculate the force applied on an object by a magnetic field?
energy -> force
Oct
11
suggested approved edit on How does one calculate the force applied on an object by a magnetic field?
Oct
8
revised How are we able to view an object in a room with bulb..?
added 14 characters in body
Oct
8
answered How are we able to view an object in a room with bulb..?
Oct
8
revised Subshell notation for hydrogen cation?
added 300 characters in body
Oct
8
answered Subshell notation for hydrogen cation?
Oct
8
asked The Born-Oppenheimer approximation and muonic molecules
Oct
8
revised Could hydrogen liberated from water provide lifting energy which exceeds the energy it took to liberate it from water
clarified
Oct
8
comment How do Optically Active Compounds Rotate Plane Polarized Light?
To address the second part of your question, it's possible to determine the specific rotation of a compound using time-dependent density functional theory (TD-DFT) as it drops out of the first-order polarisability. Steven Bachrach has quite few blog entries on calculated specific rotations, including one of 4000 degrees by Henry Rzepa!
Oct
8
answered Could hydrogen liberated from water provide lifting energy which exceeds the energy it took to liberate it from water
Oct
7
revised What is pure energy?
forgot neutrinos!
Oct
4
comment Apple falls for which of these 2 reasons?
Consider what would happen on the 'trailing' side of a planet, in the case of explanation #2. Apples, people and pretty much everything else would not have an easy time of it.
Oct
2
comment Quantum entanglement faster than speed of light?
You cannot change the spin on one particle and get a corresponding change on the second particle. Niel de Beaudrap sums it up very well as a 'correlation of random results'. Once you make a measurement (i.e. interact meaningfully with one of the entangled particles) the entanglement is collapsed.
Oct
1
comment What is the relationship between AC frequency, volts, amps and watts?
'amperage' is an evil, evil word for 'current'. Although I suppose voltage is also an evil yet alluringly bisyllabic word for 'potential difference'. I guess everyone can call them what they like, but I find 'current','potential difference' and 'power' to be far nicer from a self-description perspective and more helpful in getting an intuitive feel for their interrelation. This said, freqency should definitely be called 'hertzage' :P
Oct
1
revised Is an electron/proton gun possible?
added 426 characters in body