♪ [music playing throughout] ♪♪ In this lecture we're going to expand on the earth-sun relationship by getting to what's happening on earth. We're going to look at the five...

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[Music] We're on Yosemite Creek below Lower Yosemite Falls, it's a cold early April morning, and we're watching the frazil ice formation. Frazil ice are these small crystals of...
Hi, my name is Charlene Dodge and I'm here at the Clearwater Ice Arena in Clearwater, Florida and on behalf of Expert Village this is beginning ice skating. Okay we are going to learn the...
Organisms obtain energy from different sources. Each organism plays a role in the flow of energy through the ecosystem. To access a comprehensive array of complete multimedia lessons, as well as the...
At night we've put out these lights at the back of the boat to attract small larval animals, planktonic animals they see light for the first time well artificial light for the first time, and...
Dr. Bozidar Mitrovic: To make a diagram similar or analogous to the one that I made for the summer solstice, here is the Earth, sunlight shining on from this side, the North Pole, the South Pole. This...
Dr. Bozidar It says here at summer solstice is actually valid any time after Mitrovic: the vernal equinox and before autumnal equinox. Here is directly east. After the one vernal equinox, the Sun...
NARRATOR: They were ale, aters An "Frozen," as one man put it, "like almonin the middle of a chocolate bar." The year was 1915, and the Imperial Transarctic...
Hi, I'm Jonathan Bird and welcome to my world! Soon we head back to the ship and and pull anchor to move a few hours south. We're making our way towards the polar circle, and passing...