New Scientist TV - great, short videos about physics and math and how these subjects are utilized.
"Helix Nebula" - The Eye of God
World's Thinnest Light Bulb Created from Graphene
Expect to hear a whole lot more about Li-Fi - a wireless technology that transmits high-speed data using visible light communication (VLC) - in the coming months. With scientists achieving speeds of 224 gigabits per second in the lab using Li-Fi earlier this year, the potential for this technology to change everything about the way we use the Internet is huge.
An oblong crystal found in the wreck of a 16th-century English warship is a sunstone, a near-mythical navigational aid said to have been used by Viking mariners
Researchers at MIT have created a camera with a resolution of one frame per trillionth of a second, allowing them to film light as it travels.