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bio website science20.com/…
location Bangalore, India
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visits member for 3 years, 6 months
seen 1 hour ago

Theoretical physicist by training, PhD in spin-polarized quantum systems. Inventor of the DPD micro-hydrodynamics simulation methodology, and specialized in computational physics. Currently chief scientist for a large multinational company. Blogger at Science2.0.


2h
reviewed Approve suggested edit on An interesting problem on vectors
3h
comment A question about special relativity theory
It seems you are enquiring about the barn-pole paradox: en.wikipedia.org/wiki/Ladder_paradox ?
3h
comment Why does Pluto's orbit cross Neptune's orbit?
A crossing of orbits is in perfect agreement with all of Newton's laws.
3h
revised Why are magnetic fields so much weaker than electric?
Slightly expanded
6h
revised Why are magnetic fields so much weaker than electric?
added 25 characters in body
6h
answered Why are magnetic fields so much weaker than electric?
15h
revised Gravitational slingshot maximum
Typo
15h
comment Gravitational slingshot maximum
@AndréNeves - thanks, corrected.
15h
revised Gravitational slingshot maximum
Km/h --> km/s; added 10 characters in body
17h
comment Gravitational slingshot maximum
@fibonatic - Are you arguing about factors $1.4$ in an order of magnitude estimate?
18h
reviewed Approve suggested edit on In a positively biased PN junction, where do the injection carriers come from?
18h
comment How accurately can I expect to measure the gravitational constant with a club of college students?
@ChrisCunningham - measuring the product $M G$ is easy, measuring $G$ is darn difficult. Googling $M$ Is perfectly fine but doesn't provide much physics insight, does it? If this is no issue, why don't you ask your students to Google the value of $G$?
18h
answered Gravitational slingshot maximum
19h
comment Is the future already determined?
@DavidMulder -- the question posed: "So my question is, is it like future of an isolated system is already determined but is just not perfectly predictable by an observer because of limitations in observability?"
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awarded  Nice Answer
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awarded  Pundit
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revised Is the future already determined?
Emphasis
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answered In general, could any ad-hoc relationship of constants be useful?
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comment How accurately can I expect to measure the gravitational constant with a club of college students?
What do you want to measure: the local gravitational acceleration (e.g. Pendulum experiments) or the universal gravitational constant (e.g. Cavendish experiment)?
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answered Is the future already determined?