2,366 reputation
1518
bio website mathandcode.com/portfolio
location
age 21
visits member for 2 years, 6 months
seen 2 mins ago

Mar
4
reviewed Approve How any material can provide electrostatic and magnetic shielding
Mar
4
reviewed Approve How to find dielectric constants of ferroelectric materials experimentally?
Mar
4
answered How does one calculate the full perihelion shift of Mercury, including perturbations from other planets?
Mar
3
reviewed Reject Are all reference frames equally valid?
Mar
3
reviewed Approve What does the gradient of a graph of 1/current against resistance graph represent?
Mar
2
reviewed Approve Why doesn't a cigarette lighter generate thrust?
Mar
2
reviewed Reject What is the Physical Meaning of Commutation of Two Operators?
Feb
28
comment Why is the relativistic Lorentz factor defined this way?
physics.stackexchange.com/q/114372
Feb
25
reviewed Approve Why can't electrostatic field lines form closed loops?
Feb
25
reviewed Reject Why does ice have a lower density than water?
Feb
24
comment Rolling w/o slipping - does a friction force acts in this scenario?
Say you're holding a tire connected to an axle and you spin it up so that it's spinning at, say, one revolution per second. Then without yet letting it touch the ground, you get on a truck and accelerate at a velocity where you travel one circumference length of the tire every second. When you drop the tire, its angular momentum and momentum both do not need to change at all. So the ground doesn't actually have to exert any tangential friction force at all. Does this image help?
Feb
23
reviewed Approve Difference between Gunn Peterson trough and the Lyman Alpha Forest? Cosmological implications?
Feb
23
reviewed Approve Why is energy not an SI base unit?
Feb
21
reviewed Approve geometrical optics
Feb
21
reviewed Approve Bead on a rotating hoop
Feb
21
reviewed Reject Why can't light escape from a classical black hole?
Feb
19
reviewed Approve About long range entanglement
Feb
17
answered Is it possible that the geometry of spacetime isn't Minkowskian, if we only take special relativity into account?
Feb
16
reviewed Reject how does a lizard walk on vertical walls?
Feb
16
reviewed Reject Why are there only derivatives to the first order in the Lagrangian?