By Soulskill from Slashdot's when-they're-not-busy-telling-you-how-far-you-are-from-a-starbucks department
An anonymous reader writes: Two researchers say time disparities identified through the network of satellites that make up our modern GPS infrastructure can help detect dark matter. In a paper in the online version of the scientific journal Nature Physics, they write that dark matter may be organized as a large gas-like collection of topological defects, or energy cracks. "We propose to detect the defects, the dark matter, as they sweep through us with a network of sensitive atomic clocks. The idea is, where the clocks go out of synchronization, we would know that dark matter, the topological defect, has passed by."
Another reader adds this article about research into dark energy:The particles of the standard model, some type of dark matter and dark energy, and the four fundamental forces. That's all there is, right? But that might not be the case at all. Dark energy may not simply be the energy inherent to space itself, but rather a dynamical property that emerges from the Universe: a sort of fifth force. This is speculation that's been around for over a decade, but there hasn't been a way to test it until now. If this is the case, it may be accessible and testable by simply using presently existing vacuum chamber technology Read Replies (0)
By Roblimo from Slashdot's we'll-stick-to-our-metal-bikes-for-the-moment-thank-you department
This is not a practical bike. "Even on smooth pavement, your vision goes blurry because you're vibrating so hard," Collin said to an Atlanta Journal-Constitution reporter
back in 2012 when he was only 15 -- and already building wooden bicycles. Collin's wooden bikes are far from the first ones. Wikipedia says
, "The first bicycles recorded, known variously as velocipedes, dandy horses, or hobby horses, were constructed from wood, starting in 1817." And not all wooden bicycles made today are as crude as Collin's. A Portland (OR) company called Renovo
makes competition-quality hardwood bicycle frames -- for as little as $2200
, and a bunch more for a complete bike with all its hardware fitted and ready to roll.
Of course, while it might be sensible to buy a Renovo product if you want a wood-framed bike to Race Across America
, you won't improve your woodworking skills the way Collin's projects have improved his to the point where he's made a nice-looking pair of wood-framed sunglasses
described in his WOOD YOU? SHOULD YOU?
blog. (Alternate Video Link
)Read Replies (0)