Our Canyons Trip

Helen and I took five days in mid-September to visit the Grand Canyon, Horseshoe Bend, Antelope Canyon, Bryce National Park, and Zion National Park. All photos by us.  ...

Physics…

Eight articles by Matthew Buckley, a theoretical physicist at Rutgers, describe the frontiers of contemporary particle...

82 Social Media Sites

People often ask me which are the top social media sites. Here is a list of 80 social media sites for a global website (active in over 100 countries). Since it’s a global site, there are many social sites that are nearly unknown in the US, such as Renren...