Uncategorized
- Tech
A New Low: Lilliputian pipette releases tiniest drops
Physicists have constructed a pipette that dispenses a billionth of a trillionth of a liter.
- Planetary Science
Northern Exposure: The inhospitable side of the galaxy?
Our solar system's periodic motion from one side of the galaxy to the other could expose life on Earth to massive amounts of cosmic rays and cause recurring, catastrophic mass extinctions.
-
19823
Your article posits that every 64 million years a mass die-off occurs due to increased cosmic rays. When will the cosmic rays again be at their maximum? Robert RichardsMetairie, La. The article failed to mention when the next cosmic-ray bath is due.
