28.4 MB (28.0 MB compressed)
3543 x 2798 pixels
30.0 x 23.6 cm ⏐ 11.8 x 9.3 in (300dpi)
LAWRENCE LIVERMORE NATIONAL LABORATORY / SCIENCE PHOTO LIBRARY LAWRENCE LIVERMORE NATIONAL LABORATORY / SCIENCE PHOTO LIBRARY
A piece of SEAgel sits on soap bubbles. SEAgel (Safe Emulsion Agar gel) is a new material claimed to be the first lighter-than-air solid. It is produced from agar, a seaweed derivative often used as a thickening agent in the food industry, & is biodegradable. As a result of its microscopic pores, SEAgel could be used as a thermal insulator instead of plastic foam and balsa wood in various applications. High-density SEAgel could even be used to replace plastic packaging. SEAgel can be poured into moulds, and is soluble in water above 50 C. SEAgel is a spinoff from US "Star Wars" (Strategic Defense Initiative) research.
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