Sending a signal back in time: Researchers are on the verge of experiments that will finally hold retrocausality's feet to the fire by attempting to send a signal to the past.
Nanobots by 2009: An international team of scientists is developing what they say will be the world's first microrobot -- as wide as two human hairs -- that can swim through the arteries and digestive system.
Connecting a computer to the Human brain: A "data cable" made from stretched nerve cells could someday help connect computers to the human nervous system.
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