We've discussing with students the certain radio astronomical receiving system is designed for equipping the antenna systems, operating within band 2-40 GHz:
Ka - band 28-34 GHz
S - band 2.2-2.6 GHz
X - band 7.0-9.5 GHz
and provides the radio reception, amplification, selection of the operating...
Going to add some related links in this tread:
1. Evidence for Correlations Between Nuclear Decay Rates and Earth-Sun Distance
http://arxiv.org/PS_cache/arxiv/pdf/0808/0808.3283v1.pdf
2. Evidence against correlations between nuclear decay rates and Earth–Sun distance...
Ok. Can you give me the link to the researches (where described approaches and methods) and experimental data which prove all this values of half-life mentioned here: http://en.wikipedia.org/wiki/Radionuclide
Until recently it was considered that, for example NaCl as an stable compounds is only possible.
Most of ordinary sources are in the scope. But it's not enough for our "data science" project. The idea is to build some hierarchy of conditions and measurement approach classes, then upload data...