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Latest Pedro Alvarez Stories

Ethanol Blends Can Be Dangerous
2013-12-14 04:19:09

Adding more ethanol to fuel with the goal of reducing air pollution carries a hidden risk that toxic - or even explosive - gases may make their way into buildings, particularly those nearby with cracked foundations.

48d0bb235349136e549797853f30e1391
2010-07-29 10:48:21

Rice study give pros, cons of nanotech-enhanced building materials.

2009-02-02 10:19:02

Quantum dots have the potential to bring many good things into the world: efficient solar power, targeted gene and drug delivery, solid-state lighting and advances in biomedical imaging among them.


Word of the Day
pawl
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.
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