8,224 reputation
2720
bio website akhmeteli.org
location Houston, TX
age
visits member for 2 years, 11 months
seen 8 hours ago

2d
answered Does doping silicon affect its coefficient of thermal expansion (CTE)?
Dec
16
comment What is the difference between scale-free network and small-world network?
@Joel: With all due respect, I am not sure I have to "read through PRE or PRL" to decide if a question should be closed. If the OP does not want his/her question to be closed, it's (s)he who should care about that. The question and the links offered by the OP did not impress me as directly relevant to physics.
Dec
15
answered Physical examples where changing the order of limits yields wrong result
Dec
6
answered Problem on coefficients of friction?
Dec
6
comment Gaussian beam modelling, location of the beam waist?
@WetSavanna: It looks like such beams are called "asymmetric Gaussian".
Dec
5
answered Gaussian beam modelling, location of the beam waist?
Nov
29
comment Alternative type energy storage to batteries?
@Lim Ding Wen: Well, pneumatic actuators are used in safety-critical emergency shut-down valves, so...
Nov
29
comment Alternative type energy storage to batteries?
I don't think a flywheel can store energy for a year (energystorage.org/energy-storage/technologies/flywheels ), the best I found was "months" (home.earthlink.net/~fradella/homepage.htm ) - the standby losses can be small, but are not negligible.
Nov
29
answered Alternative type energy storage to batteries?
Nov
29
answered Can moment of inertia be negative?
Nov
27
revised What did Skobeltsyn publish about the possible existence of the positron?
Addition
Nov
26
answered What did Skobeltsyn publish about the possible existence of the positron?
Nov
19
answered Does the conductivity of a wire in a vacuum decrease over time?
Nov
18
awarded  Revival
Nov
15
comment How to chose right lens for concentrating IR signal?
What is the wavelength?
Nov
14
answered Why does my measured I-V curve for a film of aluminum suggest high resistance?
Nov
12
answered Build a ring around Earth, then remove the supports
Nov
11
revised “Bump and Go” toy car mechanism
Addition to take into account OP's comment
Nov
11
answered “Bump and Go” toy car mechanism
Nov
1
answered Is it possible to eliminate Van der Waals interactions?