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Up-to-date With The Big Bang, Mass, And Protons
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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>
Perhaps you saw the news recently about astronauts in the International Space Station eating their first home grown lettuce? It's just a beginning, but in the future, could they grow all their own food and get all their oxygen from plants? >
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>
Where is 'sea level' and how far above sea level is a particular place located?  Quite a lot of things may go wrong in bridge building and the inhabitants of the German and the Swiss parts of Laufenburg were looking forward to a new bridge over the Rhine, the High Rhine Bridge, when they were taken aback by>
French artist Paul Gauguin has had quite the resurgence - having a painting sell for nearly $300 million will do that - but the artist noted for his colorful paintings of Tahitian life was also a highly experimental printmaker. The techniques and materials Gauguin used to create his unusual and complex graphic works>