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Up-to-date With The Big Bang...
The Probability Density Function: A Known Unknown
Six-muon Events Probe Proton Collision Dynamics
Chemicals To Put Out Fires Are 'Riskier' For Firefighters...
Quantum Leap Or Quantum Mirage? What Happens When...
I recently listened again to Richard Feynman explaining why the flowing of time is probably an illusion. In modern physics time is just a coordinate, on the same footing as space, and the universe can be described as a four-dimensional object — a spacetime block. In that view, nothing really “flows”. All events>
About 1 billion years after the Big Bang, the gas in deep space was highly opaque to ultraviolet light and its transparency varied widely from place to place, obscuring much of the light emitted by distant galaxies. This opaque quality contains tantalizing mysteries about the universe.That's because now the gas between>
You can use a laser to demonstrate the Tyndall effect. A simple cat toy (laser pointer) will do but for this demonstration I’ll be using the laser from my DIY Laser Interferometer. “The Tyndall effect, also known as Tyndall scattering,” according to Wikipedia, “is light scattering by particles in a colloid>
A gravity model of the Earth constructed with data from GRACE. Credit: University of Texas Center for Space Research and NASAIt is all about gravity these days. First came GRACE (Gravity Recovery and Climate Experiment) and then we'll have GOCE (Gravity field and steady-state Ocean Circulation Explorer). I'll reveal>
NASA's Voyager 1, launched in 1977, was propelled into deep space with the help of Jupiter's and Saturn's gravity. Now it is about to leave the solar system. But exactly when is unclear.Voyager 1 is traveling at a speed of about 3.6 Astronomical Units (AU) per year - one 'AU' equals the distance between the Sun and>
The invention of fiber optics revolutionized the way we share information, allowing us to transmit data at volumes and speeds we'd only previously dreamed of, and now are breaking another barrier, designing nano-optical cables small enough to replace the copper wiring on computer chips.
This could result in radical>
