Moon's dark side may reveal Earth warming clues
Scientists monitor the moon’s unlit lunar hemisphere to gauge Earth cloudiness and global warming signals. Caltech's Steven Koonin and colleagues analyze historical brightness with modern data to detect links between temperature rise and changes in cloud reflectivity. A separate item notes Mark Zamoyski's self cleaning cat litter box patent, priced at $99.50.
MENTIONED IN THIS ARTICLE
Earth
Space
Steven Koonin
California Institute of Technology
Koonin
Engineering & Science Magazine
Cal Tech
Mark Zamoyski
San Jose
Calif
U.S
Zamoyski
San Francisco Examiner
Summer Noise Hazards and Hearing Protection Tips
The American Speech-Language-Hearing Association warns that brief exposure to loud summer noises can cause permanent hearing damage. Tips include wearing ear plugs at fireworks and concerts, lowering stereo volume, using protection during lawn mowing and powerboating, and limiting exposure time. If hearing seems affected, raise your voice, notice muffled speech, or experience pain or ringing after noise. Call 1-800-638-TALK for more information or a local audiologist referral.
MENTIONED IN THIS ARTICLE
American Speech-Language-Hearing Association
Association
Chemistry lights up the sky at Independence Day displays
Fireworks colors come from chemical reactions as sodium, strontium nitrate, and aluminum magnesium alloys create bursts. Pyrotechnics mix oxidizers and fuels, releasing heat and light through redox processes explained by chemists like John Conkling of the American Pyrotechnics Association.
MENTIONED IN THIS ARTICLE
Cedar Rapids
John
Conkling
American Pyrotechnics Association
Color and Sound in Fireworks Explained by Pyrotechnician
A pyrotechnician explains how fireworks produce color light and noise. Colors come from strontium red, copper blue, and barium green, with copper chloride for blue. stars compact chemicals in shells. White light arises from high temp oxidation, while salutes create flashes and booms with flash powder.
MENTIONED IN THIS ARTICLE
Conkling
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