Uncategorized
- Physics
Solving a 400-year-old supernova riddle
Astronomers have determined that Kepler's supernova, the last stellar explosion witnessed in our galaxy, belongs to the class known as type 1a.
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19785
Not only is the finding that nanotubes “remained in particular in the liver and spleen” of concern, but there is no indication made or concern expressed over what happens after excretion. What biological activity do these structures have in the open environment, and for how long? Can they become airborne? Do they get removed in […]
- Earth
Heating releases cookware chemicals
Nonstick coatings on fry pans and microwave-popcorn bags can, when heated, release traces of potentially toxic perfluorinated chemicals.
