Recent content by Andy Resnick

Altered tinguaite/rhomb porphyry (foid-bearing alkali-feldspar trachyte, QAPF zone 6b), Fen complex. Classified as trachyte due to lack of quartz, plagioclase, and near-lack of nepheline (or any other foid). Nepheline is only a minor component of the rock, a few small (lightly) altered...

This type of measurement was a major part of my dissertation. As you have noticed, it's not a simple measurement. I have a few thoughts/suggestions: Most important: what is your measurement goal in terms of accuracy and precision? Do you want 2 significant digits or 4? "As accurate as...

Tinguaite/Altered foid-bearing trachyte (QAPF field 6b), Fen complex. Brownish smears on 1:1 image are artifacts (dirty slide) and not part of sample. This rock could be classified as Tinguaite due to the presence of aegirine needles in the groundmass, but the needles, being randomly oriented...

Yes, there is still a hydrostatic pressure head, but other forces dominate in microgravity- capillary forces, etc. Astronauts lose bone mass because of the lack of bouyancy. But perhaps the OP was a bad question- imagining a large ship on a larger body of water without gravity present is...

Again, the merit of peer review relies upon humans acting professionally. Bad actors always exist, but that's why some journals are considered 'higher quality' than others. Peer review is like democracy- to poorly quote Churchill, "peer-review is the worst form of scientific certification...

What do you mean? there is essentially no bouyancy in microgravity.

Unfortunately, the whole scientific enterprise relies on each individual researcher behaving ethically and professionally, even when there are substantial incentives to 'cut corners'. IMO, the only way to combat this problem is to hold the authors accountable.- The way that article phrases...

True, that!

This question was prompted by me stumbling across this article: https://www.researchgate.net/publication/375785017_DeepICLogo_A_Novel_Benchmark_Dataset_for_Deep_Learning-Based_IC_Logo_Detection On the side, I decapsulate ICs and photograph them. Over the years, I've been able to identify at...

Blue Sky/Green Leaves: Blue Sky/Green Leaves/White Plane: (Not)Weeds: Shot w/ Nikon D810 and 105mm Nikkor, f/11 (top 2) and f/4 (bottom), all straight-from-camera jpgs.

Not to be glib, but that is a bad question. There is no agreement on what, exactly, results in someone being "considered a good teacher".

In the US, teacher licensing requirements vary from state to state. Even 'worse', different types of school (public, charter, private, etc...) are allowed to have their own requirements. In Ohio (maybe not the best example), a minimum requirement for STEM teachers is "[Licensure] Candidates...

I have to admit that lately, with each successive sample, I am having increasing difficulty identifying all of the minerals present. Altered Tinguaite/Phonolite (QAPF field 11), Fen complex. This complex rock could be classified as Tinguaite due to the presence of trachytic aegirine...

Next up: Altered Tinguaite/Phonolite (QAPF field 11), Fen complex. Similar appearance as Fen 253. Blocky phenocrysts of cancrinite, likely as pseudomorphic altered nepheline. Phenocrysts of sanidine heavily altered (dusty appearance, perthic texture). Groundmass is disordered, consisting...

I'm glad I had a helpful suggestion, I hope I can continue to do so :) One critical point I am unclear on is what is meant by 'thin' in this context. Optical thickness? Density of free charges? Something else? The book I mentioned covers propagation/reflection from an ionized slab, which...