2,000 karma · joined July 27, 2008
Just wanted to call this out in case anyone wanted to try decrypting it :).
It's a strange site where they mix both facts and misinformation.
But I would say that "selling the science" occurs more often for high-profile journals because the authors need to convince the reviewers that the paper has a significant impact. Papers in more field-specific journals tend to write conservatively.
See: http://physics.stackexchange.com/questions/2072/on-this-infi...
The problem with reducing the mass of the non-Li portion of the battery is that all of the practical candidates for the anode are metal oxides (e.g. Co, Fe, Mn oxides). Unless the whole metal oxide motif is replaced, you can't really achieve significant mass savings. There are research groups and startups working on alternate anode and cathode materials but there are tradeoffs in power density and safety. Also given that these approaches are still in the research phase, it'll take at least a couple of years before they reach commercial testing.
http://www.cchem.berkeley.edu/jukgrp/klinman_group/Research....
But instead of chasing the latest trends in frameworks, I would recommend learning ruby on rails instead. It's a mature framework that is still very popular. Learning it instills good principles that you carry over when learning future frameworks.
The best way to learn rails is: https://www.railstutorial.org/book
It's written for absolute beginners. Work through the entire book, and you'll have a good foundation for web development.
Maintenance and repair costs of a gasoline vehicle over 10 years can be less than that.
I see your point. I think one needs to consider both the danger of the waste and the amount of it generated. Then try to find a good balance.