What cell phone technology is the most popular in the united states?

I'm guessing by "technology" you mean carrier. There is no best mobile carrier, Verizon has the widest 4G coverage, and is directed towards people who travel a lot or live in rural areas, while T-Mobile has great coverage in high population density areas and Sprint is the cheapest. AT&t can be packaged with cable and WiFi as well as mobile internet. All of these carriers fill a certain niche in the consumer market so you can't definitively say that one is better than the other.

As a Canadian I'm not qualified to answer this. I can only presume that cell phone technology has evolved the same in the US as it has in the rest of the industrialized world. The carriers have the technology in place to support a 4G LTE network allowing for fast enough data transfers. Apparently T-Mobile has the best data rates



Should an art teacher show students her own work?

I did, and it had a profound effect on me as the artist. I am/was a sculptor and showed my new classes on the first day several of my pieces. I passed them around with instructions to feel them and think about them. I asked for their responses: one piece was a small one of an alabaster

What are the best cooking videos available for someone who wants to learn techniques more than just recipes?

The Everyday Gourmet: Rediscovering the Lost Art of Cooking. This a series of 24 " lectures" offered by The Great Courses website. The series is informative and gives a wide range of back up  information that you will not see on standard cooking videos. The chef who gives the presentations is extremely knowledgeable and when he speaks