30/01/2012

Mouse to elephant? Just wait 24 million generations

Scientists have for the first time measured how fast large-scale evolution can occur in mammals, showing it takes 24 million generations for a mouse-sized animal to evolve to the size of an elephant.

Chemists reveal how algae delete unwanted 'competitors'

Every morning when the sun comes up, the ocean ground is radically cleaned. As soon as the first rays of sunlight find their way into the water, the microalgae "Nitzschia cf pellucida" start their deadly 'morning hygiene'. ...

New California rules require cleaner cars

California, long a national leader in cutting auto pollution, pushed the envelope further Friday as state regulators approved rules to cut greenhouse gas emissions from cars and put significantly more pollution-free vehicles ...

NASA hopes to test new spaceship in 2014

There's no firm date yet, but sometime in early 2014 NASA intends to take its first major step toward rebuilding its human spaceflight program.

New Vizio HD-TV breaks wide-screen barrier for movies, apps

The shape of TVs to come might be even wider than wide-screen. Today's high-definition sets evolved to a rectangular 16-by-9 shape from the more square analog TVs. But a wider 21-by-9 display standard is in the works at the ...

UN panel says retool world economy for sustainability

The world can no longer afford to ignore the environmental cost of economic growth and must redefine the very concept of national wealth, a UN panel of heads of state and environment ministers said Monday.

Cutting off the oxygen supply to serious diseases

A new family of proteins which regulate the human body's 'hypoxic response' to low levels of oxygen has been discovered by scientists at Barts Cancer Institute at Queen Mary, University of London and The University of Nottingham.

New study may answer questions about enigmatic Little Ice Age

A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages and lasted into ...

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