pirate_is_back

I have started re-learning college level Physics and am thoroughly enjoying Feynman's Lecture on Physics. Are there similar books available for Mathematics (& Chemistry) - books that are fundamental and easy to read?

Have you checked out the new stories page (http://news.ycombinator.com/newest) lately? More than 50% of the stories are spammy. On the second page (new stories section), the percentage of spammy stories is even higher.

Check out these posts -

http://news.ycombinator.com/item?id=3995191

http://news.ycombinator.com/item?id=3995250

http://news.ycombinator.com/item?id=3995154

I guess most of them are submitted by bots.

Can we do something about it? How about setting minimum karma requirements for posting new stories a la Stackoverflow? New users can take part in meaningful discussions and earn karma to get eligible for submitting stories.