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Issue # 259 _ September 2017
Notes
WTO
WTO finds seven Brazilian programs illegal
radio telescope
A telescope in the scrublands
chemistry
“With water, please!”
astronomy
A new source of gravitational waves?
E-XFEL
The largest source of X-ray lasers is now operational
Optics
Optics Letters
features articles by Brazilians
Medicine
The importance of each risk factor in strokes
Obituary
Julio Cezar Durigan, former dean of UNESP, dies
brexit
The cost of Brexit for science
mathematics
Trigonometry on a 3700-year-old tablet from Babylon
Biodiversity
Nearly 400 new species are discovered in the Amazon