Viewing profile — cmatteri

You can buy (or build from a kit if you can solder) a functional geiger counter that will detect gamma radiation (what cobalt-60 emits) for under 100 USD. They're a bit too big to …

I found the frequency of contamination of scrap metal with radioisotopes to be disturbingly high (this article lists several more cases in addition to those in the wikipedia articl…

Shouldn't the mill be able to precisely drill very small holes for you? Perhaps you could you use the pick and place machine to put small pins in the holes which would be soldered …

I believe it contains on the order of twice as much flux, but I can't find a source for that at the moment. So I don't think flux fumes are much more of a concern than with leaded …

The use of leaded paint indoors and of leaded gasoline were particularly dangerous, but there are still numerous potential sources of lead exposure, especially in certain industrie…

Does anyone have any thoughts on the comfort (for extended use in an office) and effectiveness of the QC-20 vs the QC-15. It seems the QC-20 is better on both counts, despite its i…

The article doesn't say, so it's worth mentioning that you can type ctrl-R multiple times to search further back into command history.

Play this song for the full experience http://www.youtube.com/watch?v=zQuH4woPDn0

Or P2P services, which could potentially present a greater threat to Google. Only a small fraction of network users are willing and able to run a personal server, and even those th…

I was going to suggest mapping both jf and fj to escape so you could mash the two keys at the same time without worrying about order, but jk and kj would work as well

Their function 10^(5.5-pH) * (mg/cl sugar + 1) does seem to imply that sugar and acidity have a synergistic effect, where the +1 in the sugar term is a hack to keep the result from…