Researchers at the US Department of Energy’s (DOE) Argonne National Laboratory have created a small scale “hydrogen generator”
The post A nanosized hydrogen generator has been published on Technology Org.
Scientists are explorers by nature, and when the edges of their maps are terra incognita, researchers sometimes must give names to phenomena for which we have little knowledge. Sometimes those names linger after we know exactly what an unknown quantity is; X-rays are a classic example. The “X” initially referred to mystery, but by the time physicists determined they were simply a high-energy form of light, the name had stuck.
Dark matter, however, is still a placeholder term. Over the decades since astronomers determined that most of the mass in the cosmos is invisible, researchers have done a much better job of figuring out what dark matter isn’t than what it actually is. We know it must be electrically neutral, and it can’t be made up of ordinary matter (electrons, atomic nuclei, etc.). And while “dark matter” itself is a general term, physicists have a sort of cartography of hints: areas on the map in which various dark matter candidates reside.
The most popular of these realms contains the WIMPs: weakly interacting massive particles. Like the term “dark matter," WIMP is generic: the name describes the energy scale at which these hypothetical particles interact with ordinary matter, which in turn reveals something about their mass.
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The concept of “digital metamaterials” – a simple way of designing metamaterials with bizarre optical properties that could
The post Invisibility cloaks closer thanks to ‘digital metamaterials has been published on Technology Org.
From the early hours of October 8, over the Santa Cruz Mountains near Los Gatos, California, the totally eclipsed Moon shows a range of color across this well-exposed telescopic view of the lunar eclipse. Of course, a lunar eclipse can only occur when the Moon is opposite the Sun in Earth's sky and gliding through the planet's shadow. But also near opposition during this eclipse, and remarkably only half a degree or so from the lunar limb, distant Uranus is faint but easy to spot at the lower right. Fainter still are the ice giant's moons. To find them, slide your cursor over the image (or just follow this link) to check out a longer exposure. While even the darkened surface of our eclipsed Moon will be strongly overexposed, Uranus moons Titania, Oberon, and Umbriel can just be distinguished as faint pinpricks of light.Hydrogen as a regenerative fuel produced in gigantic water tanks full of algae, which need nothing more than
The post Algae deliver hydrogen: Modified enzymes enable efficient hydrogen production has been published on Technology Org.
