Uncategorized
- Planetary Science
Mars Encounter
On Aug. 27, Mars and Earth will be closer to each other than at any other time in the last 50,000 years. Amateur astronomers with small backyard telescopes can already view features such as dust clouds, the southern polar ice cap (because the southern cap is tipped toward Earth), and volcanic terrain. This NASA Web […]
- Math
Golf Clubs and Driving Distance
The last 20 years have seen remarkable changes in golf equipment: metal-headed drivers, forgiving irons, new putter variants, juiced golf balls, and more. Have these technology changes led to improved performance? Anecdotal evidence certainly points to such improvements. In 1980, for example, the leader in driving distance on the Professional Golfers of America (PGA) Tour […]
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Your article worries that hydrogen-fuel leakage may add to stratospheric ozone problems.
