KQED

From 1910 to 1940, immigrants entered the US through the West Coast’s Angel Island Immigration Station. Located not far from Alcatraz Island, it’s dark history were practically lost, until re-discovered in 1970. (12 min)

Though computers have gotten faster, smaller and more versatile, it’s still a big challenge to get them to demonstrate intelligent behaviors. (10 min)

KQED explores seahorses, some of the most enchanting and mysterious creatures in the ocean. They are also in trouble, struggling to survive in threatened habitats around the world. A must see in HD. (10:25 min)

Everything you want to know about chocolate… and more (10 min)

Because of a sharp decline in their numbers, the entire salmon fishing season was canceled in 2008 for the first time ever in the ocean off California and Oregon. (11 min)

From Lawrence Berkeley National Labs to Silicon Valley, researchers are manipulating particles at the atomic level, ushering in potential cures for cancer, clothes that don’t stain, and solar panels as thick as a sheet of paper. (10:28 min)