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What Einstein's E = mc 2 is to relativity theory, Heisenberg's uncertainty principle is to quantum mechanics--not just a profound insight, but also an iconic formula that even non-physicists recognize. The principle holds that we cannot know the present state of the world in full detail, let alone predict the future with absolute precision

The Age of Insight: The Quest to Understand the Unconscious in Art, Mind, and Brain, from Vienna 1900 to the Present [More]

After the furies of birth, the mature cosmos now evolves more slowly.

Male nursery web spiders often woo potential lady-friends with gifts wrapped in silk. Mating may ensue, during which a female unspools the present, expecting to find a tasty treat

%excerpt% Read the rest here: Sit. Breathe. Be a Better Leader.

A clock that takes a year to complete a cycle gives new perspective on the passage of time. In many instances, it makes sense to measure time in seconds, minutes, or hours--if you're training for a marathon, scheduling meetings, or trying to make it home for dinner on time, there's really no other way to do it. But our obsession with small increments of time often keeps us from focusing on the bigger picture.

Fifty-six million years ago, enough carbon leaked into the atmosphere to alter the climate and acidify the ocean. The same thing is happening now, much faster.

Valley-based electronics, also known as valleytronics, is one step closer to reality. Two researchers at the Naval Research Laboratory (NRL) have shown that the valley degree of freedom in graphene can be polarized through scattering off a line defect. Unlike previously proposed valley filters in graphene, which rely on confined structures that have proven hard to achieve experimentally, the present work is based on a naturally occurring line defect that has already been observed.

Intel confirmed this week that it's next generation of chipsets (Ivy Bridge) will also support the next generation of USB (Version 3.0). And all of it will be coming soon to a device near you as early as next year.

In the March issue of Scientific American Carl Schoonover, author of Portraits of the Mind: Visualizing the Brain from Antiquity to the 21st Century , describes a new computer-modeling technique that allows researchers to zoom in on the smallest components of the active brain in 3-D. To accompany the story, we've collected images from his recent book , which describes the tools that scientists have used to observe the nervous system from the second century to the present.