BarsMonster

Moscow, Russia

3.14.by

Age: 32

Software developer (in love with C++). Hardware geek (FPGA's, STM32, AVR, crazy stuff from discrete components), love LED indicators (7-segment, alphanumeric). Trying to understand ASIC design & manufacturing better at the moment. Also, trying to wrap my head around lens design, but that is not going to be that easy.

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1d
awarded Populist
1d
awarded Good Answer
Apr
4
awarded Notable Question
Mar
31
awarded Yearling
Mar
31
awarded Yearling
Mar
30
comment Why is water clear?
@PatrickM Hydrogen fusion happens only in the core of the sun. Sun emit light just because it's surface is hot - so it's spectra is more or less continuous.
Mar
30
comment Why is water clear?
@user6972 Dielectrics have no free electrons - and do not reflect all light. Absorption bands for these hydrogen-oxygen bonds lie in UV and IR regions.
Mar
30
accepted Direction of X-rays from x-ray tube
Mar
30
awarded Nice Answer
Mar
30
answered Why is water clear?
Mar
30
comment Calculating the number of quanta emitted as Cherenkov radiation in a wavelength interval dl?
This formula looks too simple at first glance. Currect formula should looks like this en.wikipedia.org/wiki/Frank%E2%80%93Tamm_formula and the most tricky part is to get correct function of refractive index of the material for deep UV region. Also see my question physics.stackexchange.com/questions/72446/…
Mar
25
asked Direction of X-rays from x-ray tube
Mar
13
awarded Popular Question
Mar
12
accepted Detecting radiation from tritium keychain
Mar
10
asked Detecting radiation from tritium keychain
Feb
18
awarded Announcer
Jan
14
awarded Yearling
Jan
7
accepted LNA RF preamplifier for DC-30Mhz
Jan
7
comment LNA RF preamplifier for DC-30Mhz
Thanks for nice document. But as far as I see - noise figure is huge: ~13dB compared to 1-3dB for MMIC's. So I guess opamps are just too noisy for that.
Jan
6
awarded Supporter
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