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Science News for October 12, 1998


Discovery Of The First X-Ray Emitting Brown Dwarf

Brown dwarf Cha Ha 1 is the youngest known member of the Chamaeleon dark cloud, with a mass of 4-5% of the Sun's mass and an age of one million years. Its X-ray emission was detected using the ROSAT satellite.

SourceMax-Planck-Gesellschaft·JournalScience·DateOct 12, 1998
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

UH Research Paves Way For Better Lasers, Thin Film Devices

Researchers at UH and AOI create mid-infrared laser on new compliant universal substrate, improving cooling and power output. The technique expands epitaxy options, enabling production of high-performance semiconductor devices like lasers and solar cells.

SourceUniversity of Houston·DateOct 12, 1998

Trace Amounts Of Nicotine Raise Blood Pressure In An Animal Model

Researchers discovered that trace amounts of nicotine can raise blood pressure in an animal model by releasing the neurotransmitter lutenizing hormone-releasing hormone (LHRH). The study suggests that even small doses of nicotine may cause short-term high blood pressure and potentially hypertension in humans.

SourceUniversity of Chicago Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 12, 1998