Here's a look at some of the most interesting articles on ScienceBlog this week:
Onion soaks up heavy metal
(so, are onion heads head-bangers?)
Weird ice affects stability of Antarctic ice shelf
Did different species of early humans interbreed?
Crowd-sourcing site compiles new sign language for math and science
Face transplantation calls for "reverse craniofacial planning"
Do we live in a computer simulation? Researchers say idea can be tested
Herbal extract works as environmentally friendly battery cathode
A new tool for secret agents--and the rest of us
New theories about black holes: solid and liquid-like
Epigenetics, not genetics, underlines homosexuality
That should keep you busy reading over the weekend. Come back Monday for the first Blog Ring of Power giveaway!