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Transportation

Synthetic Sebum Makes Slippery Sailboats 128

sonnejw0 writes "Sea-faring vessels are a major contributor of greenhouse gas production due to a deficit in international laws and inherent inefficiencies at sea, such as barnacle build-up on hulls. Many marine animals avoid the build-up of drag-inducing barnacles through secreting oily residues from their pores or through the nano-molecular arrangement of their skin. Sailors regularly defoul their hulls, removing the barnacles at dry-dock, which requires them to reduce the amount of time they have at sea. Some synthetic chemicals in paints have been used to prevent barnacle build-up but have been found to be toxic to marine animals and thus outlawed by several nations. Now, engineers are trying to replicate the skin of marine animals to produce a slippery hull to which marine bacteria cannot attach, saving fuel costs and improving speeds."
Moon

Submission + - NASA's plan to Harvest Moon Water (newscientist.com) 1

sonnejw0 writes: "Now that we have identified water on the moon, how can we harvest it for lunar bases, for power and for drinking, and will it be a renewable lunar resource? NASA is already testing possible methods of harvesting this water in the vacuum of space ... using a regular microwave oven. Do you think they used the "Defrost" or "Popcorn" setting? From the article:

"But how do you extract water that is likely locked up as small concentrations of ice in the lunar soil? Microwaves could provide the key, according to work by Edwin Ethridge of NASA's Marshall Space Flight Center and William Kaukler of the University of Alabama, both in Huntsville, who first demonstrated the technique in 2006."

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