not only is smaller calibres less lethal on the rages where guided bullets makes sense

I would think that once you have guidance systems for bullets, they would pretty much be lethal at any range considering you can make then hit vital organs at-will...

All joking aside, what you're pointing at is part of the natural cycle of social cultures. Things like science and religion come in and out of fashion, just like clothing styles, but maybe on a longer scale. Soon religion will be dead, and then science will die again, etc..

Blu-ray discs and players are clearly superior to DVDs, offering more features and a better picture overall. So why haven't shoppers been impressed?

Because there is a limit as to how much quality normal people need in their life. It's like why we still eat rectangular loaves of wheat bread that people have been eating for the past 200 years. It's just "good enough".. I'm sure with lots of technology we could make really impressive bread, but for most people it just doesn't matter. Sure the bread connoisseurs might appreciate the fancy BluRay Bread but there are not enough connoisseurs out there to really justify a mass market for that kind of bread... Now I'm hungry.

Question. TFA says that because neutrons have no charge they "are as isolated from all the forces of nature as they can possibly be, with only gravity to act on them." Then they say they have a metal plate that repels them, and one that attracts them. Seems contradictory... ?

One more movie to fill the Sunday Afternoon Crappy Movie Lineup