News
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TechTrading places
As the pace of financial transactions accelerates, researchers look forward to a time when the only limiting factor is the speed of light.
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SpaceRevealing the galaxy’s dark side
Observations of the Milky Way’s center detect gamma rays characteristic of the universe’s missing mass.
By Ron Cowen -
Health & MedicineThe fingers don’t lie
The brain has at least two copy editors, typing experiments show.
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HumansDeep African roots for toolmaking method
A method for trimming stone-tool edges appeared 75,000 years ago in southern Africa, archaeologists contend, long before previous evidence of the practice.