Icelandic volcanic eruption 1783 - Timewatch - BBC

Iceland's Laki Volcano 1783 part 2 - BBC Part 2 of 2. By the time Laki stopped erupting in February 1784, it had spewed out over eight millions tons of the highly toxic chemical flourine. With livestock feeding on the poisoned ash which had fallen, Laki was to cast a deadly shadow over Iceland as it claimed the lives 10000 people. Fascinating clip taken from the BBC Timewatch programme Killer Cloud. Watch more high quality videos on the new BBC Worldwide YouTube channel here: www.youtube.com

Volcanic Eruption Too Close for Comfort Uncle Sam is a national icon in the United States, but where did he come from? Was he a real person? James Williams takes a look into the past to find the answer.

Volcanic Eruption Too Close for Comfort Uncle Sam is a national icon in the United States, but where did he come from? Was he a real person? James Williams takes a look into the past to find the answer.

Can Simulated Volcanic Eruptions Reverse Global Warming? Complete video at: fora.tv Jane CS Long, associate director for energy and environment at Lawrence Livermore National Laboratory, examines an idea to fight climate change by spraying sulfuric aerosols into the atmosphere, essentially replicating volcanic eruptions. Despite being cheap and effective, she says the after effects of these types of geoengineering efforts are highly unknown. ----- This program was recorded at the 12th Annual Wonderfest, the San Francisco Bay Area Festival of Science. Wonderfest's broad goals are best described by its mission statement: Through public discourse about provocative scientific questions, Wonderfest aspires to stimulate curiosity, promote careful reasoning, challenge unexamined beliefs, and encourage life-long learning. Wonderfest achieves these ends by presenting series of scientific events to the general public. At most of these events, pairs of articulate and accomplished researchers discuss and debate compelling questions at the edge of scientific understanding. - Wonderfest 2010 Jane CS Long is the associate director for energy and environment at Lawrence Livermore National Laboratory.

Kushite Royal Family - Timewatch - BBC In 750 BC, Egypt was in chaos with the remnants of power held by its priesthood. It was the priests to welcomed a return to order through the Kings of Kush and as Pianky swept into Egypt, the time of the Black Pharaohs had come. Clip taken from the BBC Timewatch programme The Black Pharaohs. Watch more high quality videos on the new BBC Worldwide YouTube channel here: www.youtube.com

Meroe's Royal Cemetery - Timewatch - BBC The story of the Black Pharaoh's turns full circle at Meroe's magnificent Royal Cemetery in the shadow of some of Sudan's 300 pyramids - three times as many as were built in Egypt. Meroe's pyramids are a lasting testimony to the glory of Kush, the land of the Black Pharaohs that history forgot. Clip taken from the BBC Timewatch programme The Black Pharaohs. Watch more high quality videos on the new BBC Worldwide YouTube channel here: www.youtube.com

USS Monitor warship - Timewatch - BBC Timewatch investigates the sinking of The Monitor - the first ironclad ship commissioned by the United States Army in 1861 -- and travels to the Mariner's Museum in Virginia where a full-scale replica offers an insight into its revolutionary design. Watch more high quality videos on the BBC Worldwide YouTube channel here: www.youtube.com

Plague rat experiment - Timewatch - BBC Suspecting that the Black Death was being spread by rat fleas, a brilliant young French doctor called Paul Louis Simond conducted an experiment to see whether a plague rat could transmit the disease to a healthy rat. Fascinating clip from the Timewatch: The Mystery of the Black Death. Watch more high quality videos on the BBC Worldwide YouTube channel here: www.youtube.com

US troops enter WW1 - Timewatch - BBC In this collection of archive footage and interviews, the introduction and training of United States soldiers to the Allied cause in the First World War is discussed. Fascinating clip from the BBC documentary Timewatch: Body Hunters - The Unknown Soldiers. Watch more high quality videos on the new BBC Worldwide YouTube channel here: www.youtube.com

Private Francis Lupo found - Timewatch - BBC This amazing Timewatch documentary charts the research undertaken on US Private Francis Lupo, who was the first unknown warrior in decades to be named and returned to his home and family for burial. Watch more high quality videos on the new BBC Worldwide YouTube channel here: www.youtube.com