Uncategorized
- Tech
Glare gives silicon goose bumps
New experiments show that fluorescent lights cause undesirable bumpiness on the surface of silicon, identifying what may be a previously unrecognized cause of flaws in microchips that could become increasingly important.
- Earth
Obsidian artifacts can record ancient climate
The layer of hydrated material that forms on the surface of ancient obsidian artifacts as they age can be used to estimate the temperatures that the artifacts have experienced.
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Did the researchers take into account that most arrow points and spearheads would have been in contact with the inside of game, a considerably warmer and more humid environment than the ground where the points were found? Daniel WoitulewiczDetroit, Mich.
